WO2022206280A1 - Variable focus optical device, lens, and camera module - Google Patents

Variable focus optical device, lens, and camera module Download PDF

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Publication number
WO2022206280A1
WO2022206280A1 PCT/CN2022/079248 CN2022079248W WO2022206280A1 WO 2022206280 A1 WO2022206280 A1 WO 2022206280A1 CN 2022079248 W CN2022079248 W CN 2022079248W WO 2022206280 A1 WO2022206280 A1 WO 2022206280A1
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WO
WIPO (PCT)
Prior art keywords
movable
electromagnetic
ring
optical device
fixed
Prior art date
Application number
PCT/CN2022/079248
Other languages
French (fr)
Chinese (zh)
Inventor
黄桢
叶林敏
周秀秀
Original Assignee
宁波舜宇光电信息有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Priority to CN202280024701.1A priority Critical patent/CN117561466A/en
Publication of WO2022206280A1 publication Critical patent/WO2022206280A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/0075—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having an element with variable optical properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing

Definitions

  • the present invention relates to the field of optical technology, and in particular, to a variable-focus optical device, a lens and a camera module.
  • Camera modules have become an essential component of mobile and various electronic devices, and with the continuous upgrading of technology, terminal equipment has higher and higher requirements for photographing performance, such as multi-zoom camera modules.
  • the zoom performance of the camera module mainly depends on the positional relationship between the imaging chip and the lens of the lens. Terminal devices such as mobile phones are gradually developing towards thinness and lightness, which requires the volume and height of the camera module to be as small as possible.
  • the camera module in the prior art realizes the zooming of the camera module by changing the positional relationship between the lenses, for example, by changing the position of the lens in the lens by means of motor driving.
  • the large size of the motor it is difficult to meet the needs of the terminal equipment.
  • Figures 1 and 2 show two prior art variable focus optical devices that achieve zoom through polymers.
  • the variable focus optical device includes a polymer 10P, a glass substrate 20P and a flexible glass film 30P, wherein the polymer 10P is located between the glass substrate 20P and the glass film 30P between.
  • a piezoelectric film 40P is arranged on the periphery of the glass film 30P, wherein the deformation of the piezoelectric film 40P drives the deformation of the periphery of the glass film 30P, such as pressing down or upturning, so as to be driven by the glass film 30P to be sandwiched between the glass film 30P.
  • the polymer 10P in the middle is extruded or stretched.
  • the polymer 10P is deformed to change the optical power of the optical assembly. Since each piezoelectric film 40P deforms independently, it is impossible to control each deformation to be completely consistent, so the bending degree of the glass film 30P will deviate, and the deformation of the corresponding polymer 10P will also be uneven.
  • FIG. 2 shows another trial mode of the variable-focus optical device in the prior art, wherein the polymer 10P is arranged between two flexible glass films that can transmit light, and an annular cover is provided on the peripheral side of the upper glass film, extending
  • the output arm is connected to an external motor, and the motor drives the annular cover to move up and down in the vertical direction, so that the peripheral side of the upper glass film is pressed down or upturned, and the polymer 10P sandwiched in the middle is squeezed or stretched, resulting in Deformation to change the optical power of an optical assembly.
  • the prior art variable-focus optical device uses an annular cover to uniformly transmit pressure, but the structure of the external motor connected by the arm makes the whole occupying a large space, which is not conducive to the miniaturization of the camera module.
  • variable-focus optical device a lens and a camera module
  • the variable-focus optical device is small in size, suitable for application in camera modules of electronic equipment, and is beneficial to meet the miniaturization trend.
  • Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein the variable-focus optical device realizes optical zooming without external driving, which is beneficial to simplify the structure of the camera module, Realize the miniaturization of the camera module.
  • variable-focus optical device includes an electromagnetic driver
  • the electromagnetic driver drives one of the variable-focus optical devices when powered on.
  • the zoom element deforms to adjust the optical power of the variable focus optics.
  • variable-focus optical device a lens and a camera module
  • the variable-focus optical device generates a magnetic attraction force when powered on, and the magnetic attraction force squeezes or stretches the zoom element, thereby deforming the zoom element.
  • Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein the force of the variable-focus optical device is stable, which is beneficial to improve work stability.
  • Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, in which, compared with the prior art, piezoelectric films or external motors and driving arms are omitted, and the direction of the current is controlled to change the zoom element. shape for a zoom effect.
  • the overall size is smaller, and it is more suitable for the camera module of electronic equipment that is shrinking in size.
  • Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, in which the overall zoom function can be realized by controlling the input current to change its optical power, and compared with the conventional module, the bulky and bulky module is omitted.
  • the motor structure, the camera module as a whole occupies less space for the electronic equipment, and the focusing accuracy is higher.
  • Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, which can be installed at any position in the lens due to its small size, which improves the applicability of the variable-focus optical device.
  • Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein metal is embedded in the lens holder (molded body), one end is connected to the driving circuit on the circuit board, and the other end is connected to the variable-focus optical component
  • the pin connection of the fixed part can realize the electrical connection between the variable-focus optical component and the driving circuit, which is equivalent to hiding the external conduction circuit in the lens holder, which can effectively reduce the risk of breakage of the exposed leads and further reduce the Module size.
  • variable focus optical device of the present invention capable of achieving the foregoing objects and other objects and advantages includes:
  • the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part;
  • At least one electromagnetic driver wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
  • the electromagnetic driver comprises at least one magnet and at least one electromagnetic element arranged opposite to the at least one magnet, wherein the magnet is arranged on the movable part, and the electromagnetic element is arranged on the the fixed part; or the magnet is provided on the fixed part, and the electromagnetic element is provided on the movable part.
  • the electromagnetic drive further comprises two or more magnets and two or more electromagnetic elements, wherein the magnets and the electromagnetic elements are arranged spaced apart and interlaced with each other, and the magnets are arranged In the fixed part, the electromagnetic element is provided on the movable part; or the magnet is provided on the movable part, and the electromagnetic element is provided on the fixed part.
  • the fixing member includes a base and a fixing ring, wherein the base is arranged on one side of the zoom element along the light transmission direction, the fixing ring is in a ring structure, and the The fixing ring is located on the outer edge of the base.
  • the base is fixedly connected to the fixing ring, wherein the base is a flexible film or a flat glass.
  • the zoom element includes a light-transmitting portion and an edge portion integrally extending outward from the light-transmitting portion, wherein light can pass through the light-transmitting portion of the zoom element, so the The edge portion of the zoom element is located outside the light-transmitting portion, and the fixed part and the movable part of the fixed conduction assembly are supported on the edge portion of the zoom element.
  • the fixing ring includes an inner ring portion and an outer ring portion extending outward from the inner ring portion, wherein the outer ring portion is located outside the inner ring portion, and the outer ring portion is located outside the inner ring portion.
  • the inner ring portion of the fixing ring supports and fixes the zoom element, and the electromagnetic element is disposed on the outer ring portion of the fixing ring, whereby the outer ring portion of the fixing ring fixes and supports the the electromagnetic element of an electromagnetic drive.
  • the fixing ring is made of metal material, and the electromagnetic element is disposed on the upper surface of the outer ring portion of the fixing ring by means of gluing or attaching.
  • the movable part further comprises a force-conducting element and a movable ring, wherein the force-conducting element is drivingly connected with the movable ring, and the magnet of the electromagnetic drive is arranged in the the active ring.
  • the movable part further comprises a force-conducting element and a movable ring, wherein the force-conducting element is drivingly connected with the movable ring, and the magnet of the electromagnetic drive is arranged in the the active ring.
  • the force-conducting element is embodied as a force-conducting membrane.
  • the movable ring further includes a movable inner ring part and a movable outer ring part, wherein the movable inner ring part is drivingly connected with the movable outer ring part, and the movable outer ring part is driven by the movable outer ring part.
  • the ring portion drives the movable inner ring portion to move, and the magnet of the electromagnetic driver is fixed to the lower surface of the movable outer ring portion of the movable ring.
  • the magnet is arranged longitudinally, wherein the N pole or the S pole of the magnet faces the electromagnetic element.
  • the electromagnetic element further includes at least one electromagnetic coil and a metal core disposed adjacent to the electromagnetic coil, wherein the metal core is a ring-shaped or strip-shaped magnetic conductive material.
  • the electromagnetic coil further includes at least one inner coil and at least one outer coil, wherein the at least one inner coil is disposed inside the metal core, and the at least one outer coil is disposed in the the outside of the metal core.
  • the metal core further includes at least one metal magnetic conductive unit, the metal magnetic conductive unit is disposed between the inner coil and the outer coil, and each of the metal magnetic conductive units are arranged at equal intervals from each other.
  • the metal core further includes at least one metal magnetic conductive unit
  • the electromagnetic coil further includes at least one coil unit, wherein one of the coil units surrounds one of the metal magnetic conductive units peripheral.
  • the fixing ring includes an inner ring portion and two or more outer ring portions extending outward from the inner ring portion, wherein the electromagnetic element of the electromagnetic driver is arranged on the the outer ring portion of the fixed ring.
  • the movable ring further includes a movable inner ring portion and two or more movable outer ring portions integrally extending outward from the movable inner ring portion, and the magnet of the electromagnetic driver is provided on the movable outer ring portion of the movable ring.
  • an empty groove is formed between two adjacent outer ring parts of the fixed ring, and an empty window is formed between two adjacent movable outer ring parts of the movable ring, so
  • the movable outer ring portion of the movable ring corresponds to the hollow groove of the fixed ring, and the outer ring portion of the fixed ring corresponds to the hollow window of the movable ring.
  • the magnet of the electromagnetic driver is attached to the movable outer ring portion of the movable ring, wherein the magnet is facing the hollow slot of the fixed ring, the The electromagnetic element is arranged on the outer ring portion of the fixed ring, wherein the power supply element is facing the empty window of the movable ring.
  • the number of magnets of the electromagnetic driver is 4, the upper surface of the magnets is attached to the lower surface of the movable outer ring part of the movable ring, and the magnets surround the zoom element with an interval of 90° from each other.
  • the left and right ends of the magnets correspond to N poles or S poles, and the magnets are arranged laterally, wherein the N poles and S poles of the magnets face the electromagnetic elements that are arranged alternately with them.
  • the electromagnetic element includes at least one electromagnetic coil and at least one metal core, wherein the electromagnetic coil is adjacently surrounded by the metal core, and the metal core of the electromagnetic element is connected to the metal core.
  • the magnets are arranged alternately with each other.
  • the metal core includes a metal magnetized portion and at least one metal magnetic conductive portion integrally extending from the metal magnetized portion, wherein the electromagnetic coil is disposed on the metal of the metal core In the magnetized part, the end of the metal magnetic conductive part faces the N pole or the S pole of the magnet.
  • the present invention further provides a lens, comprising:
  • variable-focus optical device At least one variable-focus optical device, wherein the variable-focus optical device is disposed on the lens body along an optical axis direction of the lens body, wherein the variable-focus optical device comprises:
  • the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part;
  • At least one electromagnetic driver wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
  • the present invention further provides a camera module, comprising:
  • An imaging assembly wherein the imaging assembly is disposed along the optical axis of the lens, wherein the lens includes:
  • variable-focus optical device At least one variable-focus optical device, wherein the variable-focus optical device is disposed on the lens body along an optical axis direction of the lens body, wherein the variable-focus optical device comprises:
  • the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part;
  • At least one electromagnetic driver wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
  • FIG. 1 is a schematic diagram of a variable focus optical device in the prior art.
  • FIG. 2 is a schematic diagram of another variable focus optical device in the prior art.
  • FIG. 3 is a schematic diagram of a variable focus optical device according to the first preferred embodiment of the present invention.
  • variable focus optical device 4 is an exploded schematic view of the variable focus optical device according to the first preferred embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of the variable focus optical device according to the first preferred embodiment of the present invention.
  • FIG. 6A and FIG. 6B are schematic diagrams of the operation of the variable-focus optical device according to the first preferred embodiment of the present invention when the power is turned on.
  • FIG. 7 is a schematic diagram of an electromagnetic element of the variable focus optical device according to the first preferred embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a variable focus optical device according to a second preferred embodiment of the present invention.
  • variable focus optical device 9 is an exploded schematic view of the variable focus optical device according to the second preferred embodiment of the present invention.
  • variable focus optical device 10 is a cross-sectional view of the variable focus optical device according to the second preferred embodiment of the present invention.
  • FIG. 11 is a detailed schematic diagram of an electromagnetic element of the variable focus optical device according to the second preferred embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a lens of the variable-focus optical device according to the above preferred embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a camera module applying the lens according to the above preferred embodiment of the present invention.
  • variable-focus optical device includes a zoom element 10, a fixed conductive component 20, and at least one electromagnetic driver 30, wherein the zoom element 10 and the electromagnetic driver 30 are fixed to the fixed conductive component 20, and the electromagnetic driver 30 generates an electromagnetic force under the condition of power-on, and the fixed conduction component 20 is driven by the electromagnetic driver 30 to move, whereby the fixed conduction component 20 drives the zoom element to deform, so as to change the optical focus of the variable focus optical device Spend.
  • the zoom element 10 is implemented as a polymer having a high refractive index, and in an initial state, the zoom element 10 is fixed and held by the fixed conductive component 20 It is in the shape of an approximate flat cylinder.
  • the electromagnetic driver 30 When the electromagnetic driver 30 is electrically turned on, the electromagnetic driver 30 drives the fixed conductive component 20, whereby the fixed conductive component 20 drives the zoom element 10 to stretch or squeeze, so as to change the light through the zoom Conduction direction of element 10 .
  • the zoom element 10 has a light transmission direction, and the zoom element 10 can condense or diverge light in different shapes.
  • the zoom element 10 can be deformed by the fixed conduction component 20, and is extruded from an approximately flat cylinder into a shape similar to a convex lens; or the zoom element 10 can be squeezed by the fixed conduction component 20 is stretched and deformed, and is extruded from an approximately flat cylinder into a shape similar to a concave lens, thereby increasing the optical power of the zoom element 10 .
  • the fixed conduction assembly 20 includes a fixed part 21 and a movable part 22, wherein an adjustment space 201 is formed between the fixed part 21 and the movable part 22, and the zoom element 10 is fixed to the fixed part 21 and the adjustment space 201 between the movable part 22 .
  • the electromagnetic driver 30 is disposed between the fixed part 21 and the movable part 22 of the fixed conduction assembly 20 , the electromagnetic driver 30 is located on the outer side or the outer circumference of the zoom element 10 , and is driven by the electromagnetic driver. 30 drives the fixed part 21 and/or the movable part 22 of the fixed conduction assembly 20 to move, so that the zoom element 10 is squeezed or stretched by the fixed part 21 and/or the movable part 22 .
  • the fixed part 21 and the movable part 22 of the fixed conduction assembly 20 can move relatively along the light transmission direction of the zoom element 10 .
  • the position of the fixed part 21 of the fixed conduction assembly 20 is fixed, and the movable part 22 can be relative to the fixed part 21 along all the positions of the zoom element 10 .
  • the light transmission direction moves up and down, thereby stretching or squeezing the zoom element 10 .
  • the position of the fixed part 21 of the fixed conductive component 20 is fixed, and the movable part 22 can be driven by the electromagnetic driver 30 .
  • Each of the electromagnetic drivers 30 further includes at least one magnet 31 and at least one electromagnetic element 32 disposed opposite to the magnet 31, wherein the magnet 31 is disposed on the fixing member 21, and the electromagnetic element 32 is disposed on the The movable part 22 ; or the magnet 31 is provided on the movable part 22 , and the electromagnetic element is provided on the fixed part 21 .
  • the magnet 31 and the electromagnetic element 32 of the electromagnetic driver 30 are mutually aligned and crossed, so that the electromagnetic element 32 generates a The mutual repulsion or mutual attraction force of the magnets 31 .
  • the magnets 31 when the number of the magnets 31 is one, the magnets 31 are in a ring structure, and the axis of the magnets 31 and the zoom element 10 The optical axes coincide; when the number of the magnets 31 exceeds one, the magnets 31 are evenly and equally spaced outside the zoom element.
  • the magnet 31 is provided on the movable part 22
  • the electromagnetic element 32 is provided on the fixed part 21
  • the The magnet 31 and the electromagnetic element 32 are disposed opposite to each other, and the electromagnetic element 32 drives the magnet 31 to move under the condition of electrical conduction, whereby the magnet 31 drives the movable part 22 to move in a specific direction.
  • the fixing member 21 includes a base 211 and a fixing ring 212 , wherein the base 211 is disposed on one side of the zoom element 10 along the light transmission direction, and the fixing ring 212
  • the structure is annular, and the fixing ring 212 is located on the outer edge of the base 211 , or the base 211 is fixed on the inner edge of the fixing ring 212 .
  • the base 211 is fixedly connected with the fixing ring 212, wherein the base 211 can be a flexible film or a flat glass, the shape can be round or square, and has a good supporting force.
  • the transmittance of visible light is high, and it provides a place for other components to be fixed.
  • the base 211 is implemented as a disc-shaped transparent structure, and light can pass through the base 211 to reach the zoom element 10, or the light emitted by the zoom light 10 can be It is emitted through the base 211 .
  • the base 211 has a central optical axis O, and the center of the zoom element 10 in the initial state coincides with the central optical axis O of the base 211, or the center of the zoom element 10 in the initial state coincides with the center optical axis O of the base 211.
  • the center of the base 211 is on a straight line.
  • the electromagnetic element 32 is fixed to the fixing ring 212 of the fixing member 21, and it can be understood that in this preferred embodiment of the present invention, the electromagnetic element 32 is located on the outer periphery of the zoom element 10, or The electromagnetic element 32 surrounds the zoom element 10 .
  • the zoom element 10 includes a light-transmitting portion 11 and an edge portion 12 integrally extending outward from the light-transmitting portion 11, wherein light can pass through the light-transmitting portion 11 of the zoom element 10, and the zoom
  • the edge portion 12 of the element 11 is located outside the transparent portion 11 , and the fixed part 21 and the movable part 22 of the fixed conducting assembly 20 are supported on the edge part 12 of the zoom element 10 .
  • the zoom element 10 further has a first surface 101 and a second surface 102 , wherein the first surface 101 and the second surface 102 are opposite to each other, and the fixing member 21 is opposite to the first surface 102 of the zoom element 10 .
  • a surface 101 is fixedly connected, and the movable part 22 is fixedly connected with the second surface of the zoom element 10 .
  • the first surface 101 of the zoom element 10 is the upper surface of the zoom element 10
  • the second surface 102 is the lower surface of the zoom element 10 .
  • the zoom element 10 is fixed by the fixed conducting assembly 20, wherein the edge portion 12 of the second surface 102 of the zoom element 10 is fixed to the A fixing ring 212 , the edge portion 12 of the first surface 101 of the zoom element 10 is fixed to the movable part 22 .
  • the zoom element 10 and the electromagnetic element 32 of the electromagnetic driver 30 are supported by the fixing ring 212 , and the zoom element 10 and the electromagnetic element 32 are provided by the fixing ring 212 .
  • the element 32 supports and fixes the zoom element 10 and the electromagnetic driver 30 .
  • the fixing ring 212 includes an inner ring portion 2121 and an outer ring portion 2122 extending outward from the inner ring portion 2121 , wherein the outer ring portion 2122 is located outside the inner ring portion 2121 .
  • the inner ring portion 2121 of the fixing ring 212 supports and fixes the zoom element 10
  • the electromagnetic element 32 is disposed on the outer ring portion 2122 of the fixing ring 212 , so that the The outer ring portion 2122 fixes and supports the electromagnetic element 32 of the electromagnetic driver 30 .
  • the fixing ring 212 is an integral annular structure, wherein the fixing ring 212 may be a circular annular structure or a square annular structure.
  • the fixing ring 212 is a split structure, that is, the outer ring portion 2122 of the fixing ring 212 is coupled to the outer side of the inner ring portion 2121 .
  • the fixing ring 212 is made of metal material, that is, the fixing ring is implemented as a metal ring, and the electromagnetic element 32 is arranged on the outer ring of the fixing ring 212 by means of gluing or sticking Section 2122. Most preferably, the electromagnetic element 32 is attached to the upper surface of the outer ring portion 2122 of the fixing ring 212 , and the outer ring portion 2122 provides an upward or downward force of the electromagnetic element 32 .
  • the electromagnetic element 32 of the electromagnetic driver 30 is disposed between the fixed part 21 and the movable part 22 of the fixed conductive component 20, Therefore, the space occupied by the electromagnetic driver 30 in the height direction is reduced, which is beneficial to the longitudinal space of the variable-focus optical device.
  • the inner ring portion 2121 of the fixing ring 212 forms a light-passing hole 2120 , wherein the light-passing hole 2120 corresponds to the light-transmitting portion 11 of the zoom element 10 .
  • the base 211 is disposed in the light-passing hole 2120 of the fixing ring 212 , and the side surface of the base 211 is fixedly connected with the inner side surface of the inner ring portion 2121 of the fixing ring 212 .
  • the substrate 211 is implemented as a circular flat glass.
  • the inner ring portion 2121 of the fixing ring 212 has an annular structure with the same shape as the zoom element 10
  • the outer ring portion 2122 of the fixing ring 212 has an annular structure or a directional annular structure. .
  • the movable part 22 is arranged opposite to the fixed part 21, wherein the movable part 22 further comprises a force transmission element 221 and a movable ring 222, wherein the force transmission element 221 is connected with the movable ring 222 in a driving manner .
  • the magnet 31 of the electromagnetic driver 30 is disposed on the movable ring 222.
  • the electromagnetic element 32 of the electromagnetic driver 30 is electrically connected, the force of the electromagnetic element 32 and the magnet 31 drives the The movable ring 222 of the movable part 22 moves, wherein the movable ring 222 of the movable part 22 conducts the force of the magnet 31 to the force transmission element 221, whereby the force transmission element 221 squeezes or The zoom element 10 is stretched.
  • the force-conducting element 221 may be a circular flexible membrane, and a sealed cavity is formed between the base 211 of the fixing part 21 and the variable-focus element 10 .
  • the force-conducting element 221 is made of transparent material, which has good transmittance to light, and the force-conducting element 221 has a good supporting effect on the zoom element 10, and can be deformed to squeeze or squeeze when subjected to force.
  • the zoom element 10 is stretched to change its shape.
  • the force-conducting element 221 is implemented as a force-conducting membrane.
  • the force-conducting element is a bendable glass membrane.
  • the inner side of the force-conducting element 221 is attached to the edge portion 12 of the zoom element 10 .
  • the force-conducting element 221 squeezes or stretches the zoom element 10 . of the edge portion 12.
  • the force conducting element 221 includes an inner portion 2211 and an outer portion 2212 integrally extending outward from the inner portion 2211 , wherein the inner portion 2211 is located on the upper side of the edge portion 12 of the zoom element 10 ,
  • the outer portion 2212 of the force conducting element 221 is fixed to the movable ring 222 , and the movable ring 222 drives the force conducting element 221 to move in a specific direction.
  • the movable ring 222 further includes a movable inner ring part 2221 and a movable outer ring part 2222, wherein the movable inner ring part 2221 is drivingly connected with the movable outer ring part 2222, and the movable outer ring part 2222
  • the movable inner ring portion 2221 is driven to move.
  • the outer part 2212 of the force conducting element 221 is fixed to the movable inner ring part 2221 of the movable ring 222
  • the magnet 31 of the electromagnetic driver 30 is fixed to the movable ring 222 .
  • Active outer ring portion 2222 is fixed to the movable inner ring part 2221 of the movable ring 222 .
  • the movable ring 222 has a one-piece structure, that is, the movable outer ring portion 2222 integrally extends outward from the movable inner ring portion 2222 .
  • the force conducting element 221 is fixed to the upper surface of the movable inner ring portion 2221
  • the magnet 31 is fixed to the movable outer portion of the movable ring 222
  • the lower surface of the ring portion 2222 The magnet 31 and the electromagnetic element 32 are arranged face to face, when the electromagnetic element 32 is electrically connected, an electromagnetic force is generated between the electromagnetic element 32 and the magnet 31, whereby the electromagnetic force is The magnet 31 drives the movable ring 222 to move.
  • the movable ring 222 is disposed on the outer edge of the force conducting element 221 , wherein the center of the movable ring 222 is aligned with the center of the force conducting element 221 to ensure that the applied force can be uniformly transmitted to the zoom element 10 .
  • the number of the magnets 31 of the electromagnetic driver 30 may be 1, 2, 3, 4...6, 8, 10, etc., and each of the electromagnetic elements 32 of the electromagnetic driver 30 faces the magnets 31 set up.
  • the number of the magnets 31 may be 10, 8, 6 or other even numbers, and the magnets 31 surround the zoom element 10 evenly at intervals.
  • the magnet 31 can be a magnet or a magnet, wherein the magnet 31 has an N pole and an S stage, and the N pole or S pole of the magnet 31 faces the electromagnetic element 31 , that is, the N pole of the magnet 31 Or the S pole corresponds to the electromagnetic element 31 of the electromagnetic driver 30 .
  • the magnet 31 in this preferred embodiment of the present invention is disposed longitudinally, and the N pole or the S pole of the magnet 31 faces the movable outer ring portion 2222 of the movable ring 222 .
  • the movable ring 222 is made of metal, such as iron and iron alloys.
  • the magnet 31 is adsorbed on the lower surface of the movable outer ring 2222 of the movable ring 222 .
  • the movable outer ring 2222 of the movable ring 222 may be circular or square.
  • the movable ring 222 can be made of other materials, and the magnet 31 can be fixed to the lower surface of the movable outer ring 2222 by sticking.
  • the outer ring portion 2122 of the fixing ring 212 is further provided with an installation groove 21220, and the electromagnetic element 32 of the electromagnetic driver 30 is disposed in the installation groove 21220 of the outer ring portion 212, wherein the The mounting groove 21220 of the outer ring portion 2122 is formed on the upper surface of the outer ring portion 2122 and is recessed downward from the upper surface of the outer ring portion 2122 .
  • the movable outer ring portion 2222 of the movable ring 222 is further provided with a fixing groove 22220 , wherein the magnet 31 of the electromagnetic driver 30 is disposed in the fixing groove 22220 of the movable outer ring portion 2222 .
  • the fixing groove 2220 of the movable outer ring portion 2222 is formed on the lower surface of the movable outer ring portion 2222 and concave upward from the lower surface of the movable outer ring portion 2222 .
  • the mounting groove 21220 of the outer ring portion 2122 and the fixing groove 22220 of the movable outer ring portion 2222 provide a receiving and mounting position for the electromagnetic driver 30 and provide a movement of the movable ring 222
  • the movable space is provided, which is favorable for the electromagnetic driver 30 to provide sufficient driving force.
  • the electromagnetic element 32 further includes at least one electromagnetic coil 321 and a metal core 322 disposed adjacent to the electromagnetic coil 321, wherein the metal core 322 is a ring-shaped or strip-shaped magnetically conductive material.
  • the metal core 322 located near the electromagnetic coil 321 is magnetized to attract or repel the magnet 31 .
  • the metal core 322 is an annular or semi-annular magnetic conductive material, wherein the metal core 322 and the electromagnetic coil 321 surround the outer circumference of the zoom element 10 . It is worth mentioning that, in this preferred embodiment of the present invention, each of the magnets 31 of the electromagnetic driver 30 is facing the metal core 322 of the electromagnetic element 32 , and each of the magnets 31 is between each other Symmetrical or equally spaced.
  • FIG. 7 shows two arrangements of the electromagnetic elements 32 in this preferred embodiment of the present invention.
  • the electromagnetic coil 321 of the electromagnetic element 32 surrounds the metal core 322 of the electromagnetic element 32 .
  • the electromagnetic coil 321 surrounds the metal core 322 of the electromagnetic element 32 internally and externally.
  • the electromagnetic coil 321 further includes at least one inner coil 3211 and at least one outer coil 3212, wherein the at least one inner coil 3211 is disposed inside the metal core 322, and the at least one outer coil 3212 is disposed in the metal core 322. outside of the core 322 .
  • the metal core 322 is enclosed between the inner coil 3211 and the outer coil 3212 .
  • the metal core 322 is implemented as a ring-shaped magnetically conductive material or a semi-ringed magnetically conductive material.
  • the metal core 322 further includes at least one metal permeable metal unit 3221, the metal permeable unit 3221 is disposed between the inner coil 3211 and the outer coil 3212, and between each of the metal permeable units 3221 arranged at equal intervals from each other.
  • the metal magnetic conductive unit 3221 of the metal core 322 has a strip or semi-ring structure. It is worth mentioning that, in the preferred embodiment of the present invention, the inner coil 3211 and the outer coil 3212 of the electromagnetic coil 321 surround the metal core 322 in an annular structure.
  • the metal core 322 is an annular metal magnetic conductive material.
  • the inner coil 3211 and the outer coil 3212 of the electromagnetic coil 321 are input with current, the inner coil 3211 and the outer coil are located in the inner coil 3211 and the outer coil 3212.
  • the metal core 322 between the 3212 is magnetized to generate an attraction force or a repulsion force to the magnet 31, and then the force conducting element 221 generates a squeezing or stretching effect on the zoom element 10, change its optical power.
  • the metal core 322 in the middle is magnetized.
  • the upper end surface of the metal core 322 of the magnetized electromagnetic element 32 is N pole, and the lower end surface is S pole.
  • the electromagnetic element 32 has a magnetic attraction effect on the magnet 31, and the movable ring 222 drives the The force conducting element 221 is deformed, so that the zoom element 10 is squeezed by the force conducting element 221 , and the zoom element 10 becomes a shape similar to a convex lens, changing the optical power.
  • the metal core 322 further includes at least one metal magnetic conductive unit 3221
  • the electromagnetic coil 321 further includes at least one coil unit 3211, wherein one of the coil units 3211 surrounds The outer circumference of one of the metal magnetic permeable units 3221.
  • the number of the metal magnetic conductive units 3221 of the metal core 322 is two, and the metal magnetic conductive units 3221 have a semi-ring structure, and the electromagnetic coil 321 The number of the coil units 3211 is two, and the coil units 3211 of the electromagnetic coil 321 surround the outer circumference of the metal magnetic conductive unit 3211 to form a fan ring structure.
  • the number of the metal magnetic conductive units 3221 of the metal core 322 may be 3, 4, 5 or more, and the number of the electromagnetic coils 321 is the same as The number of the metal magnetic permeable units 3221 is adapted.
  • the upper end of the magnet 31 is an N-pole, and the magnet 31 is attached to the lower surface of the movable ring 222 .
  • the lower end of 31 is the S pole, which corresponds to the metal core 322 of the electromagnetic unit 32 .
  • the metal magnetic conductive unit 3221 of the metal core 322 is magnetized, and both The upper end face is the N pole, and the lower end face is the S pole.
  • the metal core 322 of the electromagnetic unit 32 attracts the magnet 31 , wherein the force conducting element 221 is deformed under the driving of the movable ring 222 , and the peripheral side is pressed down, causing the zoom element 10 Squeezed, wherein the zoom element 10 becomes a convex lens-like shape, changing the optical power.
  • the inner coil 3211 and the outer coil 3212 are input currents in opposite directions to each other, so that the inner coil 3211 and the outer coil 3212 are located between the inner coil 3211 and the outer coil 3212.
  • the metal magnetic permeable unit 3221 in between is magnetized.
  • the direction of the current is changed, and a counterclockwise current is input to the inner coil 3211 of the electromagnetic coil 321, and a clockwise current is input to the outer coil 3212, then the upper end face of the magnetized metal core 322 is The S pole, the lower end surface is the N pole, has a repulsive effect on the magnet 31, the peripheral side of the force conducting element 221 is upturned, so that the zoom element 10 is stretched, and the zoom element 10 becomes a shape similar to a concave lens . It is worth mentioning that when there is no current in the coil, the metal core is not magnetized, that is, the zoom element 10 is not deformed.
  • the electromagnetic unit 32 further includes at least one electrical connection unit 323, wherein the electrical connection unit 323 is electrically connected to the electromagnetic coil 321 of the electromagnetic unit 32, and the electromagnetic coil 321 is connected to the electromagnetic coil 321 through the electrical connection unit 323. Input Current.
  • the electromagnetic coil 321 is arranged on the fixing ring 212 .
  • the electrical connection unit 323 is disposed at a corner of the outer ring portion 2122 .
  • the electrical connection unit 323 is disposed on the back of the outer ring portion 2122 to remove redundant parts at the four corners and reduce the overall occupied space.
  • variable-focus optical device includes a zoom element 10A, a fixed conductive member 20A, and at least one electromagnetic driver 30A, wherein the zoom element 10A and the electromagnetic driver 30A are fixed to the fixed conductive member 20A, the electromagnetic driver 30A generates an electromagnetic force under the condition of power-on, and the fixed conduction component 20A is driven by the electromagnetic driver 30A to move, whereby the fixed conduction component 20A drives the zoom element to deform, so as to change the optical focus of the variable focus optical device Spend.
  • the fixed conduction assembly 20A includes a fixed part 21A and a movable part 22A, wherein an adjustment space 201A is formed between the fixed part 21A and the movable part 22A, and the zoom element 10A is fixed to the fixed part 21A and the adjustment space 201A between the movable part 22A.
  • the electromagnetic driver 30A is provided on the fixed part 21A and the movable part 22A of the fixed conductive assembly 20A.
  • the electromagnetic driver 30A further includes two or more magnets 31A and two or more electromagnetic elements 32A, wherein the magnets 31A and the electromagnetic elements 32A are spaced and interlaced with each other.
  • the magnet 31A is provided on the fixed part 21A, and the electromagnetic element 32A is provided on the movable part 22A; or the magnet 31A is provided on the movable part 22A, and the electromagnetic element is provided on the movable part 22A.
  • the fixing member 21A includes a base 211A and a fixing ring 212A, wherein the base 211A is disposed on one side of the zoom element 10A along the light transmission direction.
  • the fixing ring 212A includes an inner ring portion 2121A and two or more outer ring portions 2122A extending outward from the inner ring portion 2121A, wherein the outer ring portion 2122A is located outside the inner ring portion 2121A.
  • the electromagnetic element 32A of the electromagnetic driver 30A is provided on the outer ring portion 2122A of the fixing ring 212A.
  • the magnets 31A and the electromagnetic elements 32A of the electromagnetic driver 30A when the number of the magnets 31A and the electromagnetic elements 32A of the electromagnetic driver 30A is four, the magnets 31A and the electromagnetic elements 32A are spaced apart from each other and interleaved with each other.
  • the number of the outer ring portion 2122A of the fixing ring 212A is four, and the electromagnetic element 32A is disposed on the outer ring portion 2122A of the fixing ring 212A.
  • the movable part 22A is arranged opposite to the fixed part 21A, wherein the movable part 22A further comprises a force transmission element 221A and a movable ring 222A, wherein the force transmission element 221A is connected with the movable ring 222A in a driving manner .
  • the movable ring 222A further includes a movable inner ring portion 2221A and two or more movable outer ring portions 2222A integrally extending outward from the movable inner ring portion 2221A.
  • the magnet 31A of the electromagnetic driver 30A is disposed on the movable outer ring portion 2222A of the movable ring 222A.
  • the magnet 31A is attached to the lower surface of the movable outer ring portion 2222A.
  • An empty groove 21201A is formed between two adjacent outer ring portions 2122A of the fixed ring 212A, and an empty window 22201A is formed between two adjacent movable outer ring portions 2222A of the movable ring 222A.
  • the movable outer ring portion 2222A of the ring 222A corresponds to the hollow groove 21201A of the fixed ring 212A
  • the outer ring portion 2122A of the fixed ring 212A corresponds to the hollow window 22201A of the movable ring 222A.
  • the outer ring portion 2122A of the fixed ring 212A and the movable outer ring portion 2222A of the movable ring 222A are arranged in a staggered alignment with each other.
  • the magnets 31A and the electromagnetic elements 32A of the electromagnetic drive 30A are spaced and staggered from each other.
  • the magnet 31A of the electromagnetic driver 30A is attached to the movable outer ring portion 2222A of the movable ring 222A, wherein the magnet 31A is facing the fixed ring 212A
  • the hollow groove 21201A, the electromagnetic element 32A is disposed on the outer ring portion 2122A of the fixed ring 212A, wherein the power supply element 32A is facing the hollow window 22201A of the movable ring 222A. Therefore, the magnet 31A and the electromagnetic element 32A of the electromagnetic driver 30A are not restricted by the fixed part 21A and the movable part 22A in the height direction, which saves space in the height direction and is beneficial to the variable focus. Miniaturization of optical devices.
  • the outer ring portion 2122A of the fixed ring 212A has a circular or square structure
  • the movable outer ring portion 2222A of the movable ring 222A has a circular shape shape or square structure.
  • the shapes of the fixed ring 212A and the movable ring 222A are merely illustrative, rather than limiting. Therefore, in other optional embodiments of the present invention, the movable ring 222A and the fixed ring 212A can be set in a pentagonal or hexagonal structure.
  • the electromagnetic The number of the magnets 31A and the electromagnetic elements 32A of the driver 30A is five or six.
  • the number of magnets 31A of the electromagnetic driver 30A may be four, the upper surface of the magnets 31A is attached to the lower surface of the movable outer ring portion 2222A of the movable ring 222A, and the magnets 31A are spaced 90° apart from each other. It is arranged around the zoom element 10A, and its left and right ends correspond to the N pole or the S pole. In this preferred embodiment of the present invention, the magnets 31A are arranged laterally, wherein the N and S poles of the magnets 31A are oriented towards the electromagnetic elements 32A which are arranged alternately therewith.
  • the fixing ring 212A is a positive ring-shaped structure, wherein the hollow groove 21201A of the fixing ring 212A is formed in the middle position of the four sides of the fixing ring 212A, for fixing the movable part 21A to the fixing ring 212A.
  • Part 22A accommodates said magnet 31A when connected.
  • Four corners of the fixing ring 212A are provided with an electromagnetic element 32A.
  • the electromagnetic element 32A includes at least one electromagnetic coil 321A and at least one metal core 322A, wherein the electromagnetic coil 321A is adjacently surrounded by the metal core 322A, so that the electromagnetic coil 321A makes the metal core 322A when energized.
  • the core 322A is magnetized.
  • the metal core 322A is wound or wrapped by the electromagnetic coil 321A.
  • the metal core 322A of the electromagnetic element 32A and the magnet 31A are arranged in a staggered manner.
  • the position of the metal core 322A of the electromagnetic element 32A is substantially parallel to the position of the magnet 31A or the position of the magnet 31A is slightly higher than the height of the metal core 322A.
  • the metal core 322A is a strip or annular magnetic conductive material, wherein the metal core 322A includes a metal magnetized portion 3221A and at least one metal magnetic conductive portion 3222A integrally extending from the metal magnetized portion 3221A, wherein the electromagnetic The coil 322A is provided on the metal magnetized portion 3221A of the metal core 322A.
  • the metal magnetized portion 3221A is located between the two metal magnetic conductive portions 3222A.
  • the metal magnetic conductive parts 3222A of the metal core 322A are located at both ends of the metal magnetized part 3221A, and the ends of the metal magnetic conductive parts 3222A face the N pole or the S pole of the magnet 31A.
  • the metal core 322A is magnetized, so that both ends of the metal core 322A become N-pole or S-pole, attracting or repelling the magnet 31A, and at the same time
  • the force-conducting element 211A is deformed, squeezing or stretching the zoom element 10A to change its optical power.
  • the corner space thereof needs to be utilized.
  • the electromagnetic actuator 30A of the variable focus optical device can generate a larger thrust or repulsion force.
  • the lens includes a lens body 100 and at least one variable-focus optical device 200 disposed on the lens body 100, wherein the variable-focus optical device is the same as the above-mentioned first preferred embodiment and the second preferred embodiment
  • the variable focus optics in are the same.
  • the lens of this preferred embodiment of the present invention applies the variable-focus optical device of the above preferred embodiment. Therefore, the specific structure of the variable-focus optical device 200 of the present invention will not be repeated here.
  • the lens body 100 includes at least one optical lens 110 and a lens fixing device 120 for fixing the at least one optical lens 100, wherein the at least one optical lens 110 is fixed to the lens fixing device 120, and the lens is fixed by the lens
  • the fixing device 120 keeps the position of the optical lens 110 stable. It is worth mentioning that, in this preferred embodiment of the present invention, the variable-focus optical device 200 can be disposed above, below the lens body 100 or between the lens bodies 100 to adjust the The optical power of the lens.
  • the camera module includes a lens 1000 and at least one imaging assembly 2000, wherein the imaging assembly 2000 is arranged along an optical axis of the lens 1000, and the lens 1000 is the same as the one described in the above preferred embodiment.
  • the structure of the lens is the same. It can be understood by those skilled in the art that, by arranging the above-mentioned variable-focus optical device in the camera module, the overall zoom function can be realized by controlling the input current to change its optical power. Compared with the camera module in the prior art, the larger motor structure is omitted, the overall camera module occupies less space in the electronic device, and the focusing precision is higher. Due to the advantages of the small size of the variable-focus optical device, it can be set at any position in the lens.
  • variable-focus optical device metal is embedded in the lens holder (molded body), one end is connected to the drive circuit on the circuit board, and the other end is connected to the pin of the fixed part 21 of the variable-focus optical device, so that the variable-focus optical device can be realized.
  • the electrical connection between the device and the driving circuit is equivalent to hiding the external conducting circuit in the lens holder, which can effectively reduce the risk of breakage of the exposed leads and further reduce the volume of the camera module.

Abstract

A variable focus optical device, a lens, and a camera module. The variable focus optical device comprises a zoom element (10), a fixed conduction assembly (20) and at least one electromagnetic driver (30). The fixed conduction assembly (20) comprises a fixed component (21) and a movable component (22); the zoom element (10) is fixed between the fixed component (21) and the movable component (22); and the electromagnetic driver (30) is disposed on the fixed conduction assembly (20). Furthermore, the electromagnetic driver (30) can drive the movable component (22); and when the electromagnetic driver (30) is electrically connected, the movable component (22) is driven to move, and the movable component (22) extrudes or stretches the zoom element (10) so as to change the focal power of the variable focus optical device.

Description

可变焦光学装置、镜头以及摄像模组Variable-focus optical device, lens and camera module 技术领域technical field
本发明涉及光学技术领域，尤其涉及一可变焦光学装置、镜头以及摄像模组。The present invention relates to the field of optical technology, and in particular, to a variable-focus optical device, a lens and a camera module.
背景技术Background technique
摄像模组已经成为移动和各电子设备必备的元件，并且随着技术的不断升级，终端设备对于拍照性能的要求越来越高，比如多倍变焦摄像模组。摄像模组的变焦性能主要取决于成像芯片与镜头的给镜片的位置关系。手机等终端设备逐渐朝轻薄化的方向发展，这就要求摄像模组的体积和高度尽可能小。Camera modules have become an essential component of mobile and various electronic devices, and with the continuous upgrading of technology, terminal equipment has higher and higher requirements for photographing performance, such as multi-zoom camera modules. The zoom performance of the camera module mainly depends on the positional relationship between the imaging chip and the lens of the lens. Terminal devices such as mobile phones are gradually developing towards thinness and lightness, which requires the volume and height of the camera module to be as small as possible.
现有技术的摄像模组通过改变镜片之间的位置关系，比如通过马达驱动的方式改变镜头中镜片的位置，实现摄像模组的变焦。但是由于马达的体积较大很难满足终端设备的需求。The camera module in the prior art realizes the zooming of the camera module by changing the positional relationship between the lenses, for example, by changing the position of the lens in the lens by means of motor driving. However, due to the large size of the motor, it is difficult to meet the needs of the terminal equipment.
图1和图2示出了现有技术的两种通过聚合物实现变焦的可变焦光学装置。如图1所示，所述可变焦光学装置包括一聚合物10P、一玻璃基底20P以及一可弯曲的玻璃膜30P，其中所述聚合物10P位于所述玻璃基底20P和所述玻璃膜30P之间。所述玻璃膜30P周侧设有一压电薄膜40P，其中所述压电薄膜40P的变形带动所述玻璃膜30P周侧变形，如下压或上翘，从而由所述玻璃膜30P带动被夹在中间的所述聚合物10P受到挤压或拉伸。所述聚合物10P产生变形，以改变光学组件的光焦度。由于每个所述压电薄膜40P各自独立变形，无法控制每个变形完全一致，因此导致所述玻璃膜30P的弯曲程度会有偏差，相应的聚合物10P的变形也会不均匀。Figures 1 and 2 show two prior art variable focus optical devices that achieve zoom through polymers. As shown in FIG. 1 , the variable focus optical device includes a polymer 10P, a glass substrate 20P and a flexible glass film 30P, wherein the polymer 10P is located between the glass substrate 20P and the glass film 30P between. A piezoelectric film 40P is arranged on the periphery of the glass film 30P, wherein the deformation of the piezoelectric film 40P drives the deformation of the periphery of the glass film 30P, such as pressing down or upturning, so as to be driven by the glass film 30P to be sandwiched between the glass film 30P. The polymer 10P in the middle is extruded or stretched. The polymer 10P is deformed to change the optical power of the optical assembly. Since each piezoelectric film 40P deforms independently, it is impossible to control each deformation to be completely consistent, so the bending degree of the glass film 30P will deviate, and the deformation of the corresponding polymer 10P will also be uneven.
图2示出了现有技术的可变焦光学装置的另一试试方式，其中聚合物10P被设置于可透光的二可弯曲玻璃膜之间，上玻璃膜周侧设有一环形盖，延伸出臂与一外置马达相连，通过马达带动环形盖在竖直方向上下运动，使上玻璃膜的周侧下压或上翘，带动夹在中间的聚合物10P受到挤压或拉伸，产生变形，以改变光学组件的光焦度。现有技术的这种可变焦光学装置使用一个环形盖可以均匀传递压力，但是外置马达并通过臂连接的结构使得整体占用空间较大，不利于摄像模组的小型化。FIG. 2 shows another trial mode of the variable-focus optical device in the prior art, wherein the polymer 10P is arranged between two flexible glass films that can transmit light, and an annular cover is provided on the peripheral side of the upper glass film, extending The output arm is connected to an external motor, and the motor drives the annular cover to move up and down in the vertical direction, so that the peripheral side of the upper glass film is pressed down or upturned, and the polymer 10P sandwiched in the middle is squeezed or stretched, resulting in Deformation to change the optical power of an optical assembly. The prior art variable-focus optical device uses an annular cover to uniformly transmit pressure, but the structure of the external motor connected by the arm makes the whole occupying a large space, which is not conducive to the miniaturization of the camera module.
发明内容SUMMARY OF THE INVENTION
本发明的一个主要优势在于提供一可变焦光学装置、镜头以及摄像模组，其中所述可变焦光学装置体积小，适于应用在电子设备的摄像模组中，有利于满足小型化趋势。One of the main advantages of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein the variable-focus optical device is small in size, suitable for application in camera modules of electronic equipment, and is beneficial to meet the miniaturization trend.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中所述可变焦光学装置在不需要外界驱动的情况下实现光学变焦，有利于简化所述摄像模组的结构，实现摄像模组的小型化。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein the variable-focus optical device realizes optical zooming without external driving, which is beneficial to simplify the structure of the camera module, Realize the miniaturization of the camera module.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中所述可变焦光学装置包括一电磁驱动器，所述电磁驱动器在通电的情况下驱动所述可变焦光学装置的一变焦元件变形，以调整所述可变焦光学装置的光焦度。Another advantage of the present invention is to provide a variable-focus optical device, a lens, and a camera module, wherein the variable-focus optical device includes an electromagnetic driver, and the electromagnetic driver drives one of the variable-focus optical devices when powered on. The zoom element deforms to adjust the optical power of the variable focus optics.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中所述可变焦光学装置在通电时产生磁吸作用力，有所述磁吸作用力挤压或拉伸所述变焦元件，从而使得所述变焦元件变形。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein the variable-focus optical device generates a magnetic attraction force when powered on, and the magnetic attraction force squeezes or stretches the zoom element, thereby deforming the zoom element.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中所述可变焦光学装置作用力稳定，有利于提高工作稳定性。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein the force of the variable-focus optical device is stable, which is beneficial to improve work stability.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中相对于现有技术省去了压电薄膜或外置马达及驱动臂，通过控制电流的方向来改变变焦元件的形状，获得变焦效果。整体尺寸更小，对于体积日渐缩小的电子设备摄像模组来说更适用。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, in which, compared with the prior art, piezoelectric films or external motors and driving arms are omitted, and the direction of the current is controlled to change the zoom element. shape for a zoom effect. The overall size is smaller, and it is more suitable for the camera module of electronic equipment that is shrinking in size.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中可以通过控制输入电流改变其光焦度来实现整体的变焦功能，相对于常规模组省去了体积较大的马达结构，摄像模组整体占电子设备的空间更小，对焦精度更高。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, in which the overall zoom function can be realized by controlling the input current to change its optical power, and compared with the conventional module, the bulky and bulky module is omitted. The motor structure, the camera module as a whole occupies less space for the electronic equipment, and the focusing accuracy is higher.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中由于其体积小的优势，可以设置在镜头中任意一片的位置，提高了所述可变焦光学装置的适用性。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, which can be installed at any position in the lens due to its small size, which improves the applicability of the variable-focus optical device.
本发明的另一个优势在于提供一可变焦光学装置、镜头以及摄像模组，其中在镜座(模塑体)中嵌入金属，一端连接至线路板上的驱动电路，另一端与可变焦光学组件的固定部的引脚连接，可以实现所述可变焦光学组件与驱动电路的电连接，相当于将外部导通电路隐藏至镜座中，可有效减少外露引线断裂的风险，并进一步减小了模组体积。Another advantage of the present invention is to provide a variable-focus optical device, a lens and a camera module, wherein metal is embedded in the lens holder (molded body), one end is connected to the driving circuit on the circuit board, and the other end is connected to the variable-focus optical component The pin connection of the fixed part can realize the electrical connection between the variable-focus optical component and the driving circuit, which is equivalent to hiding the external conduction circuit in the lens holder, which can effectively reduce the risk of breakage of the exposed leads and further reduce the Module size.
依本发明的一个方面，能够实现前述目的和其他目的和优势的本发明的一可变焦光学装置，包括：According to one aspect of the present invention, a variable focus optical device of the present invention capable of achieving the foregoing objects and other objects and advantages includes:
一变焦元件；a zoom element;
一固定传导组件，其中所述固定传导组件包括一固定部件和一活动部件，所述变焦元件被固定于所述固定部件和所述活动部件之间；以及a fixed conduction assembly, wherein the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part; and
至少一电磁驱动器，其中所述电磁驱动器被设置于所述固定传导组件，且所述电磁驱动器可传动于所述活动部件，当所述电磁驱动器电导通时，驱动所述活动部件移动，由所述活动部件挤压或拉伸所述变焦元件，以改变所述可变焦光学装置的光焦度。At least one electromagnetic driver, wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
根据本发明的一个实施例，所述电磁驱动器包括至少一磁体和与所述至少一磁体相对设置的至少一电磁元件，其中所述磁体被设置于所述活动部件，所述电磁元件被设置于所述固定部件；或者所述磁体被设置于所述固定部件，所述电磁元件被设置于所述活动部件。According to one embodiment of the present invention, the electromagnetic driver comprises at least one magnet and at least one electromagnetic element arranged opposite to the at least one magnet, wherein the magnet is arranged on the movable part, and the electromagnetic element is arranged on the the fixed part; or the magnet is provided on the fixed part, and the electromagnetic element is provided on the movable part.
根据本发明的一个实施例，所述电磁驱动器进一步包括二或以上的磁体和二或以上的电磁元件，其中所述磁体与所述电磁元件相间隔地和相互交错地设置，所述磁体被设置于所述固定部件，所述电磁元件被设置于所述活动部件；或者所述磁体被设置于所述活动部件，所述电磁元件被设置于所述固定部件。According to one embodiment of the present invention, the electromagnetic drive further comprises two or more magnets and two or more electromagnetic elements, wherein the magnets and the electromagnetic elements are arranged spaced apart and interlaced with each other, and the magnets are arranged In the fixed part, the electromagnetic element is provided on the movable part; or the magnet is provided on the movable part, and the electromagnetic element is provided on the fixed part.
根据本发明的一个实施例，所述固定部件包括一基底和一固定环，其中所述基底被设置于所述变焦元件沿光传导方向的一侧，所述固定环呈环状结构，且所述固定环位于所述基底的外沿。According to an embodiment of the present invention, the fixing member includes a base and a fixing ring, wherein the base is arranged on one side of the zoom element along the light transmission direction, the fixing ring is in a ring structure, and the The fixing ring is located on the outer edge of the base.
根据本发明的一个实施例，所述基底与所述固定环相固定地连接，其中所述基底为一可弯曲膜或一平板玻璃。According to an embodiment of the present invention, the base is fixedly connected to the fixing ring, wherein the base is a flexible film or a flat glass.
根据本发明的一个实施例，所述变焦元件包括一透光部和自所述透光部向外一体延伸的一边缘部，其中光线可透过所述变焦元件的所述透光部，所述变焦元件的所述边缘部位于所述透光部的外侧，并且所述固定传导组件的所述固定部件和所述活动部件支撑在所述变焦元件的所述边缘部。According to an embodiment of the present invention, the zoom element includes a light-transmitting portion and an edge portion integrally extending outward from the light-transmitting portion, wherein light can pass through the light-transmitting portion of the zoom element, so the The edge portion of the zoom element is located outside the light-transmitting portion, and the fixed part and the movable part of the fixed conduction assembly are supported on the edge portion of the zoom element.
根据本发明的一个实施例，所述固定环包括一内环部和自所述内环部向外延伸的一外环部，其中所述外环部位于所述内环部的外侧，所述固定环的所述内环部支撑和固定所述变焦元件，所述电磁元件被设置于所述固定环的所述外环部，借以所述固定环的所述外环部固定和支撑所述电磁驱动器的所述电磁元件。According to an embodiment of the present invention, the fixing ring includes an inner ring portion and an outer ring portion extending outward from the inner ring portion, wherein the outer ring portion is located outside the inner ring portion, and the outer ring portion is located outside the inner ring portion. The inner ring portion of the fixing ring supports and fixes the zoom element, and the electromagnetic element is disposed on the outer ring portion of the fixing ring, whereby the outer ring portion of the fixing ring fixes and supports the the electromagnetic element of an electromagnetic drive.
根据本发明的一个实施例，所述固定环为金属材质，所述电磁元件通过胶粘或贴附的方式被设置于所述固定环的所述外环部的上表面。According to an embodiment of the present invention, the fixing ring is made of metal material, and the electromagnetic element is disposed on the upper surface of the outer ring portion of the fixing ring by means of gluing or attaching.
根据本发明的一个实施例，所述活动部件进一步包括一力传导元件和一活动环，其中所述力传导元件与所述活动环相传动地连接，所述电磁驱动器的所述磁体被设置于所述活动环。According to an embodiment of the present invention, the movable part further comprises a force-conducting element and a movable ring, wherein the force-conducting element is drivingly connected with the movable ring, and the magnet of the electromagnetic drive is arranged in the the active ring.
根据本发明的一个实施例，所述活动部件进一步包括一力传导元件和一活动环，其中所述力传导元件与所述活动环相传动地连接，所述电磁驱动器的所述磁体被设置于所述活动环。According to an embodiment of the present invention, the movable part further comprises a force-conducting element and a movable ring, wherein the force-conducting element is drivingly connected with the movable ring, and the magnet of the electromagnetic drive is arranged in the the active ring.
根据本发明的一个实施例，所述力传导元件被实施为一力传导膜。According to an embodiment of the invention, the force-conducting element is embodied as a force-conducting membrane.
根据本发明的一个实施例，所述活动环进一步包括一活动内环部和一活动外环部，其中所述活动内环部与所述活动外环部相传动地连接，由所述活动外环部带动所述活动内环部移动，所述电磁驱动器的所述磁体被固定至所述活动环的所述活动外环部的下表面。According to an embodiment of the present invention, the movable ring further includes a movable inner ring part and a movable outer ring part, wherein the movable inner ring part is drivingly connected with the movable outer ring part, and the movable outer ring part is driven by the movable outer ring part. The ring portion drives the movable inner ring portion to move, and the magnet of the electromagnetic driver is fixed to the lower surface of the movable outer ring portion of the movable ring.
根据本发明的一个实施例，所述磁体纵向设置，其中所述磁体的N极或S极朝向所述电磁元件。According to an embodiment of the present invention, the magnet is arranged longitudinally, wherein the N pole or the S pole of the magnet faces the electromagnetic element.
根据本发明的一个实施例，所述电磁元件进一步包括至少一电磁线圈和与所述电磁线圈相邻近设置的一金属芯，其中所述金属芯为环形或条状的导磁材料。According to an embodiment of the present invention, the electromagnetic element further includes at least one electromagnetic coil and a metal core disposed adjacent to the electromagnetic coil, wherein the metal core is a ring-shaped or strip-shaped magnetic conductive material.
根据本发明的一个实施例，所述电磁线圈进一步包括至少一内线圈和至少一外线圈，其中所述至少一内线圈设置于所述金属芯的内侧，所述至少一外线圈被设置于所述金属芯的外侧。According to an embodiment of the present invention, the electromagnetic coil further includes at least one inner coil and at least one outer coil, wherein the at least one inner coil is disposed inside the metal core, and the at least one outer coil is disposed in the the outside of the metal core.
根据本发明的一个实施例，所述金属芯进一步包括至少一金属导磁单元，所述金属导磁单元被设置于所述内线圈和所述外线圈之间，并且各所述金属导磁单元之间相互等间隔地设置。According to an embodiment of the present invention, the metal core further includes at least one metal magnetic conductive unit, the metal magnetic conductive unit is disposed between the inner coil and the outer coil, and each of the metal magnetic conductive units are arranged at equal intervals from each other.
根据本发明的一个实施例，所述金属芯进一步包括至少一金属导磁单元，所述电磁线圈进一步包括至少一线圈单元，其中一个所述的线圈单元环绕于一个所述的金属导磁单元的外周。According to an embodiment of the present invention, the metal core further includes at least one metal magnetic conductive unit, the electromagnetic coil further includes at least one coil unit, wherein one of the coil units surrounds one of the metal magnetic conductive units peripheral.
根据本发明的一个实施例，所述固定环包括一内环部和自所述内环部向外延伸的二或以上的外环部，其中所述电磁驱动器的所述电磁元件被设置于所述固定环的所述外环部。According to an embodiment of the present invention, the fixing ring includes an inner ring portion and two or more outer ring portions extending outward from the inner ring portion, wherein the electromagnetic element of the electromagnetic driver is arranged on the the outer ring portion of the fixed ring.
根据本发明的一个实施例，所述活动环进一步包括一活动内环部和自所述活 动内环部一体地向外延伸的二或以上的活动外环部，所述电磁驱动器的所述磁体被设置于所述活动环的所述活动外环部。According to an embodiment of the present invention, the movable ring further includes a movable inner ring portion and two or more movable outer ring portions integrally extending outward from the movable inner ring portion, and the magnet of the electromagnetic driver is provided on the movable outer ring portion of the movable ring.
根据本发明的一个实施例，所述固定环的相邻两所述外环部之间设有一空槽，所述活动环的相邻两所述活动外环部之间设有一空窗，所述活动环的所述活动外环部对应于所述固定环的所述空槽，所述固定环的所述外环部对应于所述活动环的所述空窗。According to an embodiment of the present invention, an empty groove is formed between two adjacent outer ring parts of the fixed ring, and an empty window is formed between two adjacent movable outer ring parts of the movable ring, so The movable outer ring portion of the movable ring corresponds to the hollow groove of the fixed ring, and the outer ring portion of the fixed ring corresponds to the hollow window of the movable ring.
根据本发明的一个实施例，所述电磁驱动器的所述磁体被贴附于所述活动环的所述活动外环部，其中所述磁体正对于所述固定环的所述空槽，所述电磁元件被设置于所述固定环的所述外环部，其中所述电源元件正对于所述活动环的所述空窗。According to an embodiment of the present invention, the magnet of the electromagnetic driver is attached to the movable outer ring portion of the movable ring, wherein the magnet is facing the hollow slot of the fixed ring, the The electromagnetic element is arranged on the outer ring portion of the fixed ring, wherein the power supply element is facing the empty window of the movable ring.
根据本发明的一个实施例，所述电磁驱动器的磁体数量是4个，磁体的上表面贴附于活动环的所述活动外环部的下表面，所述磁体相互间隔90°地环绕变焦元件设置，其左右端部对应N极或S极，所述磁体横向设置，其中所述磁体的N极和S极朝向与之相互交错设置的所述电磁元件。According to an embodiment of the present invention, the number of magnets of the electromagnetic driver is 4, the upper surface of the magnets is attached to the lower surface of the movable outer ring part of the movable ring, and the magnets surround the zoom element with an interval of 90° from each other. The left and right ends of the magnets correspond to N poles or S poles, and the magnets are arranged laterally, wherein the N poles and S poles of the magnets face the electromagnetic elements that are arranged alternately with them.
根据本发明的一个实施例，所述电磁元件包括至少一电磁线圈和至少一金属芯，其中所述电磁线圈被邻近地环绕于所述金属芯，所述电磁元件的所述金属芯与所述磁体相互交错地设置。According to an embodiment of the present invention, the electromagnetic element includes at least one electromagnetic coil and at least one metal core, wherein the electromagnetic coil is adjacently surrounded by the metal core, and the metal core of the electromagnetic element is connected to the metal core. The magnets are arranged alternately with each other.
根据本发明的一个实施例，所述金属芯包括一金属磁化部和自所述金属磁化部一体延伸的至少一金属导磁部，其中所述电磁线圈被设置于所述金属芯的所述金属磁化部，所述金属导磁部的端部朝向所述磁体的N极或S极。According to an embodiment of the present invention, the metal core includes a metal magnetized portion and at least one metal magnetic conductive portion integrally extending from the metal magnetized portion, wherein the electromagnetic coil is disposed on the metal of the metal core In the magnetized part, the end of the metal magnetic conductive part faces the N pole or the S pole of the magnet.
根据本发明的另一方面，本发明进一步提供一镜头，包括：According to another aspect of the present invention, the present invention further provides a lens, comprising:
一镜头主体；和a lens body; and
至少一可变焦光学装置，其中所述可变焦光学装置沿所述镜头主体的一光轴方向被设置于所述镜头主体，其中所述可变焦光学装置包括：At least one variable-focus optical device, wherein the variable-focus optical device is disposed on the lens body along an optical axis direction of the lens body, wherein the variable-focus optical device comprises:
一变焦元件；a zoom element;
一固定传导组件，其中所述固定传导组件包括一固定部件和一活动部件，所述变焦元件被固定于所述固定部件和所述活动部件之间；以及a fixed conduction assembly, wherein the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part; and
至少一电磁驱动器，其中所述电磁驱动器被设置于所述固定传导组件，且所述电磁驱动器可传动于所述活动部件，当所述电磁驱动器电导通时，驱动所述活动部件移动，由所述活动部件挤压或拉伸所述变焦元件，以改变所述可变焦光学 装置的光焦度。At least one electromagnetic driver, wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
根据本发明的另一方面，本发明进一步提供一摄像模组，包括：According to another aspect of the present invention, the present invention further provides a camera module, comprising:
一镜头；和a shot; and
一成像组件，其中所述成像组件沿所述镜头的光轴方向设置，其中所述镜头包括：An imaging assembly, wherein the imaging assembly is disposed along the optical axis of the lens, wherein the lens includes:
一镜头主体；和a lens body; and
至少一可变焦光学装置，其中所述可变焦光学装置沿所述镜头主体的一光轴方向被设置于所述镜头主体，其中所述可变焦光学装置包括：At least one variable-focus optical device, wherein the variable-focus optical device is disposed on the lens body along an optical axis direction of the lens body, wherein the variable-focus optical device comprises:
一变焦元件；a zoom element;
一固定传导组件，其中所述固定传导组件包括一固定部件和一活动部件，所述变焦元件被固定于所述固定部件和所述活动部件之间；以及a fixed conduction assembly, wherein the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part; and
至少一电磁驱动器，其中所述电磁驱动器被设置于所述固定传导组件，且所述电磁驱动器可传动于所述活动部件，当所述电磁驱动器电导通时，驱动所述活动部件移动，由所述活动部件挤压或拉伸所述变焦元件，以改变所述可变焦光学装置的光焦度。At least one electromagnetic driver, wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
通过对随后的描述和附图的理解，本发明进一步的目的和优势将得以充分体现。Further objects and advantages of the present invention will be fully realized by an understanding of the ensuing description and drawings.
本发明的这些和其它目的、特点和优势，通过下述的详细说明和附图得以充分体现。These and other objects, features and advantages of the present invention are fully realized by the following detailed description and accompanying drawings.
附图说明Description of drawings
图1是现有技术的一可变焦光学装置的示意图。FIG. 1 is a schematic diagram of a variable focus optical device in the prior art.
图2是现有技术的另一可变焦光学装置的示意图。FIG. 2 is a schematic diagram of another variable focus optical device in the prior art.
图3是根据本发明的第一较佳实施例的一可变焦光学装置的示意图。3 is a schematic diagram of a variable focus optical device according to the first preferred embodiment of the present invention.
图4是根据本发明上述第一较佳实施例的所述可变焦光学装置的分解示意图。4 is an exploded schematic view of the variable focus optical device according to the first preferred embodiment of the present invention.
图5是根据本发明上述第一较佳实施例的所述可变焦光学装置的剖视图。FIG. 5 is a cross-sectional view of the variable focus optical device according to the first preferred embodiment of the present invention.
图6A和图6B是根据本发明上述第一较佳实施例的所述可变焦光学装置的在通电情况下的动作示意图。6A and FIG. 6B are schematic diagrams of the operation of the variable-focus optical device according to the first preferred embodiment of the present invention when the power is turned on.
图7是根据本发明上述第一较佳实施例的所述可变焦光学装置的一电磁元件的示意图。7 is a schematic diagram of an electromagnetic element of the variable focus optical device according to the first preferred embodiment of the present invention.
图8是根据本发明的第二较佳实施例的一可变焦光学装置的示意图。8 is a schematic diagram of a variable focus optical device according to a second preferred embodiment of the present invention.
图9是根据本发明上述第二较佳实施例的所述可变焦光学装置的分解示意图。9 is an exploded schematic view of the variable focus optical device according to the second preferred embodiment of the present invention.
图10是根据本发明上述第二较佳实施例的所述可变焦光学装置的剖视图。10 is a cross-sectional view of the variable focus optical device according to the second preferred embodiment of the present invention.
图11是根据本发明上述第二较佳实施例的所述可变焦光学装置的一电磁元件的细节示意图。11 is a detailed schematic diagram of an electromagnetic element of the variable focus optical device according to the second preferred embodiment of the present invention.
图12是应用本发明上述较佳实施例的所述可变焦光学装置的一镜头的结构示意图。FIG. 12 is a schematic structural diagram of a lens of the variable-focus optical device according to the above preferred embodiment of the present invention.
图13是应用本发明上述较佳实施例的所述镜头的一摄像模组的结构示意图。13 is a schematic structural diagram of a camera module applying the lens according to the above preferred embodiment of the present invention.
具体实施方式Detailed ways
以下描述用于揭露本发明以使本领域技术人员能够实现本发明。以下描述中的优选实施例只作为举例，本领域技术人员可以想到其他显而易见的变型。在以下描述中界定的本发明的基本原理可以应用于其他实施方案、变形方案、改进方案、等同方案以及没有背离本发明的精神和范围的其他技术方案。The following description serves to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments described below are given by way of example only, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
本领域技术人员应理解的是，在本发明的揭露中，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系是基于附图所示的方位或位置关系，其仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此上述术语不能理解为对本发明的限制。It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and to simplify the description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus the above terms should not be construed as limiting the invention.
可以理解的是，术语“一”应理解为“至少一”或“一个或多个”，即在一个实施例中，一个元件的数量可以为一个，而在另外的实施例中，该元件的数量可以为多个，术语“一”不能理解为对数量的限制。It should be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be one. The number may be plural, and the term "one" should not be understood as a limitation on the number.
参照本发明说明书附图至图3至图7所示，依照本发明第一较佳实施例的一可变焦光学装置在接下来的描述中被阐明。所述可变焦光学装置包括一变焦元件10、一固定传导组件20以及至少一电磁驱动器30，其中所述变焦元件10和所述电磁驱动器30被固定至所述固定传导组件20，所述电磁驱动器30在通电情况下产生电磁作用力，由所述电磁驱动器30驱动所述固定传导组件20移动，借以所述固定传导组件20驱动所述变焦元件变形，以改变所述可变焦光学装置的光焦度。Referring to the accompanying drawings to FIG. 3 to FIG. 7 of the present specification, a variable focus optical device according to the first preferred embodiment of the present invention is explained in the following description. The variable-focus optical device includes a zoom element 10, a fixed conductive component 20, and at least one electromagnetic driver 30, wherein the zoom element 10 and the electromagnetic driver 30 are fixed to the fixed conductive component 20, and the electromagnetic driver 30 generates an electromagnetic force under the condition of power-on, and the fixed conduction component 20 is driven by the electromagnetic driver 30 to move, whereby the fixed conduction component 20 drives the zoom element to deform, so as to change the optical focus of the variable focus optical device Spend.
详细地说，在本发明的该优选实施例中，所述变焦元件10被实施为具有高折射率的聚合物，在初始状态下，所述变焦元件10被所述固定传导组件20固定并保持呈近似扁平圆柱体的结构形状。当所述电磁驱动器30被电导通时，所述电磁驱动器30驱动所述固定传导组件20，借以所述固定传导组件20驱动所述变焦元件10拉伸或挤压，以改变光线经所述变焦元件10的传导方向。可以理解的是，所述变焦元件10具有一光传导方向，并且所述变焦元件10在不同的形状下可对光线产生会聚或发散作用。In detail, in this preferred embodiment of the present invention, the zoom element 10 is implemented as a polymer having a high refractive index, and in an initial state, the zoom element 10 is fixed and held by the fixed conductive component 20 It is in the shape of an approximate flat cylinder. When the electromagnetic driver 30 is electrically turned on, the electromagnetic driver 30 drives the fixed conductive component 20, whereby the fixed conductive component 20 drives the zoom element 10 to stretch or squeeze, so as to change the light through the zoom Conduction direction of element 10 . It can be understood that the zoom element 10 has a light transmission direction, and the zoom element 10 can condense or diverge light in different shapes.
值得一提的是，所述变焦元件10可被所述固定传导组件20挤压变形，从近似扁平圆柱体被挤压成类似凸透镜的形状；或者所述变焦元件10可被所述固定传导组件20拉伸变形，从近似扁平圆柱体被挤压成类似凹透镜的形状，进而了所述变焦元件10的光焦度。It is worth mentioning that the zoom element 10 can be deformed by the fixed conduction component 20, and is extruded from an approximately flat cylinder into a shape similar to a convex lens; or the zoom element 10 can be squeezed by the fixed conduction component 20 is stretched and deformed, and is extruded from an approximately flat cylinder into a shape similar to a concave lens, thereby increasing the optical power of the zoom element 10 .
所述固定传导组件20包括一固定部件21和一活动部件22，其中所述固定部件21和所述活动部件22之间形成一调整空间201，所述变焦元件10被固定于所述固定部件21和所述活动部件22之间的所述调整空间201。所述电磁驱动器30被设置于所述固定传导组件20的所述固定部件21和所述活动部件22之间，所述电磁驱动器30位于所述变焦元件10的外侧或外周，由所述电磁驱动器30驱动所述固定传导组件20的所述固定部件21和/或所述活动部件22运动，从而由所述固定部件21和/或所述活动部件22挤压或拉伸所述变焦元件10。The fixed conduction assembly 20 includes a fixed part 21 and a movable part 22, wherein an adjustment space 201 is formed between the fixed part 21 and the movable part 22, and the zoom element 10 is fixed to the fixed part 21 and the adjustment space 201 between the movable part 22 . The electromagnetic driver 30 is disposed between the fixed part 21 and the movable part 22 of the fixed conduction assembly 20 , the electromagnetic driver 30 is located on the outer side or the outer circumference of the zoom element 10 , and is driven by the electromagnetic driver. 30 drives the fixed part 21 and/or the movable part 22 of the fixed conduction assembly 20 to move, so that the zoom element 10 is squeezed or stretched by the fixed part 21 and/or the movable part 22 .
值得一提的是，所述固定传导组件20的所述固定部件21和所述活动部件22可沿所述变焦元件10的所述光传导方向相对地活动。优选地，在本发明的该优选实施例中，所述固定传导组件20的所述固定部件21位置被固定，所述活动部件22可相对于所述固定部件21沿所述变焦元件10的所述光传导方向上下地移动，从而拉伸或挤压所述变焦元件10。简言之，所述固定传导组件20的所述固定部件21位置被固定，所述活动部件22可被所述电磁驱动器30驱动。It is worth mentioning that the fixed part 21 and the movable part 22 of the fixed conduction assembly 20 can move relatively along the light transmission direction of the zoom element 10 . Preferably, in this preferred embodiment of the present invention, the position of the fixed part 21 of the fixed conduction assembly 20 is fixed, and the movable part 22 can be relative to the fixed part 21 along all the positions of the zoom element 10 . The light transmission direction moves up and down, thereby stretching or squeezing the zoom element 10 . In short, the position of the fixed part 21 of the fixed conductive component 20 is fixed, and the movable part 22 can be driven by the electromagnetic driver 30 .
各所述电磁驱动器30进一步包括至少一磁体31和与所述磁体31相对设置的至少一电磁元件32，其中所述磁体31被设置于所述固定部件21，所述电磁元件32被设置于所述活动部件22；或者所述磁体31被设置于所述活动部件22，所述电磁元件被设置于所述固定部件21。在本发明的其他可选实施方式中，所述电磁驱动器30的所述磁体31和所述电磁元件32相互对位且交叉的设置，以使得所述电磁元件32在电导通的情况下产生与所述磁体31的相互排斥或相互吸 引的作用力。值得一提的是，在本发明的该优选实施例中，所述磁体31的数量为一时，所述磁体31呈环形结构，并且所述磁体31的所述轴心与所述变焦元件10的光轴相重合；当所述磁体31的数量超过一时，所述磁体31均匀地和等间隔地分布于所述变焦元件的外侧。Each of the electromagnetic drivers 30 further includes at least one magnet 31 and at least one electromagnetic element 32 disposed opposite to the magnet 31, wherein the magnet 31 is disposed on the fixing member 21, and the electromagnetic element 32 is disposed on the The movable part 22 ; or the magnet 31 is provided on the movable part 22 , and the electromagnetic element is provided on the fixed part 21 . In other optional embodiments of the present invention, the magnet 31 and the electromagnetic element 32 of the electromagnetic driver 30 are mutually aligned and crossed, so that the electromagnetic element 32 generates a The mutual repulsion or mutual attraction force of the magnets 31 . It is worth mentioning that, in this preferred embodiment of the present invention, when the number of the magnets 31 is one, the magnets 31 are in a ring structure, and the axis of the magnets 31 and the zoom element 10 The optical axes coincide; when the number of the magnets 31 exceeds one, the magnets 31 are evenly and equally spaced outside the zoom element.
优选地，在本发明的该优选实施例中，所述磁体31被设置于所述活动部件22，所述电磁元件32被设置于所述固定部件21，且各所述电磁驱动器30的所述磁体31与所述电磁元件32相对位地设置，由所述电磁元件32在电导通的情况下驱动所述磁体31移动，借以所述磁体31带动所述活动部件22朝特定方向移动。Preferably, in this preferred embodiment of the present invention, the magnet 31 is provided on the movable part 22 , the electromagnetic element 32 is provided on the fixed part 21 , and the The magnet 31 and the electromagnetic element 32 are disposed opposite to each other, and the electromagnetic element 32 drives the magnet 31 to move under the condition of electrical conduction, whereby the magnet 31 drives the movable part 22 to move in a specific direction.
如图3至图5所示，所述固定部件21包括一基底211和一固定环212，其中所述基底211被设置于所述变焦元件10沿光传导方向的一侧，所述固定环212呈环状结构，且所述固定环212位于所述基底211的外沿，或者所述基底211被固定在所述固定环212的内沿。所述基底211与所述固定环212相固定地连接，其中所述基底211可以是一可弯曲膜或一平板玻璃，形状可以是圆形，也可以是正方形，具有较好的支撑力，对可见光的透过率较高，以及为其他部件提供固定设置的场所。As shown in FIGS. 3 to 5 , the fixing member 21 includes a base 211 and a fixing ring 212 , wherein the base 211 is disposed on one side of the zoom element 10 along the light transmission direction, and the fixing ring 212 The structure is annular, and the fixing ring 212 is located on the outer edge of the base 211 , or the base 211 is fixed on the inner edge of the fixing ring 212 . The base 211 is fixedly connected with the fixing ring 212, wherein the base 211 can be a flexible film or a flat glass, the shape can be round or square, and has a good supporting force. The transmittance of visible light is high, and it provides a place for other components to be fixed.
优选地，在本发明的该优选实施例中，所述基底211被实施为一圆盘状透明结构，光线可穿过所述基底211到达所述变焦元件10，或者变焦光线10出射的光线可经过所述基底211射出。所述基底211具有一中心光轴O，所述变焦元件10在初始状态下的中心与所述基底211的所述中心光轴O重合，或者所述变焦元件10在初始状态下的中心与所述基底211的中心在一条直线上。Preferably, in this preferred embodiment of the present invention, the base 211 is implemented as a disc-shaped transparent structure, and light can pass through the base 211 to reach the zoom element 10, or the light emitted by the zoom light 10 can be It is emitted through the base 211 . The base 211 has a central optical axis O, and the center of the zoom element 10 in the initial state coincides with the central optical axis O of the base 211, or the center of the zoom element 10 in the initial state coincides with the center optical axis O of the base 211. The center of the base 211 is on a straight line.
所述电磁元件32被固定至所述固定部件21的所述固定环212，可以理解的是，在本发明的该优选实施例中，所述电磁元件32位于所述变焦元件10的外周，或者所述电磁元件32环绕于所述变焦元件10。The electromagnetic element 32 is fixed to the fixing ring 212 of the fixing member 21, and it can be understood that in this preferred embodiment of the present invention, the electromagnetic element 32 is located on the outer periphery of the zoom element 10, or The electromagnetic element 32 surrounds the zoom element 10 .
所述变焦元件10包括一透光部11和自所述透光部11向外一体延伸的一边缘部12，其中光线可透过所述变焦元件10的所述透光部11，所述变焦元件11的所述边缘部12位于所述透光部11的外侧，并且所述固定传导组件20的所述固定部件21和所述活动部件22支撑在所述变焦元件10的所述边缘部12。The zoom element 10 includes a light-transmitting portion 11 and an edge portion 12 integrally extending outward from the light-transmitting portion 11, wherein light can pass through the light-transmitting portion 11 of the zoom element 10, and the zoom The edge portion 12 of the element 11 is located outside the transparent portion 11 , and the fixed part 21 and the movable part 22 of the fixed conducting assembly 20 are supported on the edge part 12 of the zoom element 10 .
所述变焦元件10进一步具有一第一表面101和一第二表面102，其中所述第一表面101和所述第二表面102相对，所述固定部件21与所述变焦元件10的所 述第一表面101固定地连接，所述活动部件22与所述变焦元件10的所述第二表面相固定地连接。优选地，在本发明的该优选实施例中，所述变焦元件10的所述第一表面101为所述变焦元件10的上表面，所述第二表面102为所述变焦元件10的下表面。换言之，在本发明的该优选实施例中，所述变焦元件10被所述固定传导组件20固定，其中所述变焦元件10的所述第二表面102的所述边缘部12被固定至所述固定环212，所述变焦元件10的所述第一表面101的所述边缘部12被固定至所述活动部件22。The zoom element 10 further has a first surface 101 and a second surface 102 , wherein the first surface 101 and the second surface 102 are opposite to each other, and the fixing member 21 is opposite to the first surface 102 of the zoom element 10 . A surface 101 is fixedly connected, and the movable part 22 is fixedly connected with the second surface of the zoom element 10 . Preferably, in this preferred embodiment of the present invention, the first surface 101 of the zoom element 10 is the upper surface of the zoom element 10 , and the second surface 102 is the lower surface of the zoom element 10 . In other words, in this preferred embodiment of the present invention, the zoom element 10 is fixed by the fixed conducting assembly 20, wherein the edge portion 12 of the second surface 102 of the zoom element 10 is fixed to the A fixing ring 212 , the edge portion 12 of the first surface 101 of the zoom element 10 is fixed to the movable part 22 .
如图3至图5所示，所述变焦元件10和所述电磁驱动器30的所述电磁元件32被所述固定环212支撑，由所述固定环212提供所述变焦元件10和所述电磁元件32支撑和固定所述变焦元件10和所述电磁驱动器30。所述固定环212包括一内环部2121和自所述内环部2121向外延伸的一外环部2122，其中所述外环部2122位于所述内环部2121的外侧。所述固定环212的所述内环部2121支撑和固定所述变焦元件10，所述电磁元件32被设置于所述固定环212的所述外环部2122，借以所述固定环212的所述外环部2122固定和支撑所述电磁驱动器30的所述电磁元件32。As shown in FIGS. 3 to 5 , the zoom element 10 and the electromagnetic element 32 of the electromagnetic driver 30 are supported by the fixing ring 212 , and the zoom element 10 and the electromagnetic element 32 are provided by the fixing ring 212 . The element 32 supports and fixes the zoom element 10 and the electromagnetic driver 30 . The fixing ring 212 includes an inner ring portion 2121 and an outer ring portion 2122 extending outward from the inner ring portion 2121 , wherein the outer ring portion 2122 is located outside the inner ring portion 2121 . The inner ring portion 2121 of the fixing ring 212 supports and fixes the zoom element 10 , and the electromagnetic element 32 is disposed on the outer ring portion 2122 of the fixing ring 212 , so that the The outer ring portion 2122 fixes and supports the electromagnetic element 32 of the electromagnetic driver 30 .
优选地，在本发明的该优选实施例中，所述固定环212为一体式环状结构，其中所述固定环212可以为圆形环状结构或者方形环状结构。可选地，在本发明的其他可选实施方式中，所述固定环212为分体式结构，即所述固定环212的所述外环部2122被耦接至所述内环部2121的外侧。Preferably, in this preferred embodiment of the present invention, the fixing ring 212 is an integral annular structure, wherein the fixing ring 212 may be a circular annular structure or a square annular structure. Optionally, in other optional embodiments of the present invention, the fixing ring 212 is a split structure, that is, the outer ring portion 2122 of the fixing ring 212 is coupled to the outer side of the inner ring portion 2121 .
更优选地，所述固定环212为金属材质，即所述固定环被实施为金属环，所述电磁元件32通过胶粘或贴附的方式被设置于所述固定环212的所述外环部2122。最优选地，所述电磁元件32被贴附于所述固定环212的所述外环部2122的上表面，通过所述外环部2122提供所述电磁元件32向上或向下的作用力。More preferably, the fixing ring 212 is made of metal material, that is, the fixing ring is implemented as a metal ring, and the electromagnetic element 32 is arranged on the outer ring of the fixing ring 212 by means of gluing or sticking Section 2122. Most preferably, the electromagnetic element 32 is attached to the upper surface of the outer ring portion 2122 of the fixing ring 212 , and the outer ring portion 2122 provides an upward or downward force of the electromagnetic element 32 .
可以理解的是，在本发明的该优选实施例中，所述电磁驱动器30的所述电磁元件32被设置于所述固定传导组件20的所述固定部件21和所述活动部件22之间，从而减小了所述电磁驱动器30所占据高度方向的空间，有利于所述可变焦光学装置的纵向空间。It can be understood that, in this preferred embodiment of the present invention, the electromagnetic element 32 of the electromagnetic driver 30 is disposed between the fixed part 21 and the movable part 22 of the fixed conductive component 20, Therefore, the space occupied by the electromagnetic driver 30 in the height direction is reduced, which is beneficial to the longitudinal space of the variable-focus optical device.
所述固定环212的所述内环部2121形成一通光孔2120，其中所述通光孔2120对应于所述变焦元件10的所述透光部11。所述基底211被设置于所述固定环212的所述通光孔2120，并且所述基底211的侧面与所述固定环212的所述内环部 2121的内侧面相固定地连接。优选地，在本发明的该优选实施例中，所述基底211被实施为一圆形平板玻璃。所述固定环212的所述内环部2121呈与所述变焦元件10相同形状的圆环形结构，所述固定环212的所述外环部2122呈圆环状结构或者方向的环状结构。The inner ring portion 2121 of the fixing ring 212 forms a light-passing hole 2120 , wherein the light-passing hole 2120 corresponds to the light-transmitting portion 11 of the zoom element 10 . The base 211 is disposed in the light-passing hole 2120 of the fixing ring 212 , and the side surface of the base 211 is fixedly connected with the inner side surface of the inner ring portion 2121 of the fixing ring 212 . Preferably, in this preferred embodiment of the present invention, the substrate 211 is implemented as a circular flat glass. The inner ring portion 2121 of the fixing ring 212 has an annular structure with the same shape as the zoom element 10 , and the outer ring portion 2122 of the fixing ring 212 has an annular structure or a directional annular structure. .
所述活动部件22与所述固定部件21相对设置，其中所述活动部件22进一步包括一力传导元件221和一活动环222，其中所述力传导元件221与所述活动环222相传动地连接。所述电磁驱动器30的所述磁体31被设置于所述活动环222，当所述电磁驱动器30的所述电磁元件32电导通时，所述电磁元件32与所述磁体31的作用力驱动所述活动部件22的所述活动环222移动，其中所述活动部件22的所述活动环222传导所述磁体31的作用力至所述力传导元件221，借以所述力传导元件221挤压或拉伸所述变焦元件10。The movable part 22 is arranged opposite to the fixed part 21, wherein the movable part 22 further comprises a force transmission element 221 and a movable ring 222, wherein the force transmission element 221 is connected with the movable ring 222 in a driving manner . The magnet 31 of the electromagnetic driver 30 is disposed on the movable ring 222. When the electromagnetic element 32 of the electromagnetic driver 30 is electrically connected, the force of the electromagnetic element 32 and the magnet 31 drives the The movable ring 222 of the movable part 22 moves, wherein the movable ring 222 of the movable part 22 conducts the force of the magnet 31 to the force transmission element 221, whereby the force transmission element 221 squeezes or The zoom element 10 is stretched.
所述力传导元件221可以为一圆形的可弯曲膜，与固定部件21的所述基底211之间形成一密封空腔，用于容纳所述变焦元件10。所述力传导元件221为透明材质，对光线有良好的透过率，并且所述力传导元件221对所述变焦元件10具有良好的支撑作用，同时在受力时可发生形变以挤压或拉伸所述变焦元件10使其形状发生变化。优选地，在本发明的该优选实施例中，所述力传导元件221被实施为一力传导膜。作为示例的，所述力传导元件为可弯曲玻璃膜。所述力传导元件221内侧贴附于所述变焦元件10的所述边缘部12，当所述力传导元件221受力传导时，所述力传导元件221挤压或拉伸所述变焦元件10的所述边缘部12。The force-conducting element 221 may be a circular flexible membrane, and a sealed cavity is formed between the base 211 of the fixing part 21 and the variable-focus element 10 . The force-conducting element 221 is made of transparent material, which has good transmittance to light, and the force-conducting element 221 has a good supporting effect on the zoom element 10, and can be deformed to squeeze or squeeze when subjected to force. The zoom element 10 is stretched to change its shape. Preferably, in this preferred embodiment of the invention, the force-conducting element 221 is implemented as a force-conducting membrane. By way of example, the force-conducting element is a bendable glass membrane. The inner side of the force-conducting element 221 is attached to the edge portion 12 of the zoom element 10 . When the force-conducting element 221 is subjected to force-transmission, the force-conducting element 221 squeezes or stretches the zoom element 10 . of the edge portion 12.
所述力传导元件221包括一内侧部2211和自所述内侧部2211一体向外延伸的一外侧部2212，其中所述内侧部2211位于所述变焦元件10的所述边缘部12的上侧，所述力传导元件221的所述外侧部2212被固定于所述活动环222，由所述活动环222带动所述力传导元件221沿特定方向移动。The force conducting element 221 includes an inner portion 2211 and an outer portion 2212 integrally extending outward from the inner portion 2211 , wherein the inner portion 2211 is located on the upper side of the edge portion 12 of the zoom element 10 , The outer portion 2212 of the force conducting element 221 is fixed to the movable ring 222 , and the movable ring 222 drives the force conducting element 221 to move in a specific direction.
所述活动环222进一步包括一活动内环部2221和一活动外环部2222，其中所述活动内环部2221与所述活动外环部2222相传动地连接，由所述活动外环部2222带动所述活动内环部2221移动。所述力传导元件221的所述外侧部2212被固定于所述活动环222的所述活动内环部2221，所述电磁驱动器30的所述磁体31被固定至所述活动环222的所述活动外环部2222。优选地，在本发明的该优选实施例中，所述活动环222为一体式结构，即所述活动外环部2222自所述活动内环部2222一体地向外延伸。The movable ring 222 further includes a movable inner ring part 2221 and a movable outer ring part 2222, wherein the movable inner ring part 2221 is drivingly connected with the movable outer ring part 2222, and the movable outer ring part 2222 The movable inner ring portion 2221 is driven to move. The outer part 2212 of the force conducting element 221 is fixed to the movable inner ring part 2221 of the movable ring 222 , and the magnet 31 of the electromagnetic driver 30 is fixed to the movable ring 222 . Active outer ring portion 2222. Preferably, in this preferred embodiment of the present invention, the movable ring 222 has a one-piece structure, that is, the movable outer ring portion 2222 integrally extends outward from the movable inner ring portion 2222 .
优选地，在本发明的该优选实施例中，所述力传导元件221被固定于所述活动内环部2221的上表面，所述磁体31被固定至所述活动环222的所述活动外环部2222的下表面。所述磁体31与所述电磁元件32向面对面地设置，当所述电磁元件32电导通时，所述电磁元件32和所述磁体31之间产生电磁作用力，借以所述电磁作用力由所述磁体31驱动所述活动环222移动。Preferably, in this preferred embodiment of the present invention, the force conducting element 221 is fixed to the upper surface of the movable inner ring portion 2221 , and the magnet 31 is fixed to the movable outer portion of the movable ring 222 The lower surface of the ring portion 2222. The magnet 31 and the electromagnetic element 32 are arranged face to face, when the electromagnetic element 32 is electrically connected, an electromagnetic force is generated between the electromagnetic element 32 and the magnet 31, whereby the electromagnetic force is The magnet 31 drives the movable ring 222 to move.
所述活动环222被设置于所述力传导元件221外沿，其中所述活动环222的中心与所述力传导元件221的中心对齐，以确保施力可以均匀地传递到所述变焦元件10。The movable ring 222 is disposed on the outer edge of the force conducting element 221 , wherein the center of the movable ring 222 is aligned with the center of the force conducting element 221 to ensure that the applied force can be uniformly transmitted to the zoom element 10 .
所述电磁驱动器30的所述磁体31数量可以是1、2、3、4...6、8、10等，并且所述电磁驱动器30的各所述电磁元件32与所述磁体31相面对面地设置。优选地，在本发明的该优选实施例中，所述磁体31的数量可以是10个、8个、6个或其他偶数个，并且所述磁体31间隔均匀地环绕所述变焦元件10。所述磁体31可以为磁石或者磁体，其中所述磁体31具有一N极和一S级，所述磁体31的N极或S极朝向于所述电磁元件31，即所述磁体31的N极或S极与所述电磁驱动器30的所述电磁元件31相对应。简言之，本发明该优选实施例的所述磁体31纵向地设置，所述磁体31的所述N极或S极朝向所述活动环222的所述活动外环部2222。The number of the magnets 31 of the electromagnetic driver 30 may be 1, 2, 3, 4...6, 8, 10, etc., and each of the electromagnetic elements 32 of the electromagnetic driver 30 faces the magnets 31 set up. Preferably, in this preferred embodiment of the present invention, the number of the magnets 31 may be 10, 8, 6 or other even numbers, and the magnets 31 surround the zoom element 10 evenly at intervals. The magnet 31 can be a magnet or a magnet, wherein the magnet 31 has an N pole and an S stage, and the N pole or S pole of the magnet 31 faces the electromagnetic element 31 , that is, the N pole of the magnet 31 Or the S pole corresponds to the electromagnetic element 31 of the electromagnetic driver 30 . In short, the magnet 31 in this preferred embodiment of the present invention is disposed longitudinally, and the N pole or the S pole of the magnet 31 faces the movable outer ring portion 2222 of the movable ring 222 .
优选地，在本发明的该优选实施例中，所述活动环222为金属材质，比如铁和铁合金等。所述磁体31被吸附于所述活动环222的所述活动外环2222的下表面。所述活动环222的所述活动外环2222可以是圆形，也可以是正方形。可选地，在本发明的其他可选实施方式中，所述活动环222可被实施为其他材质，并且所述磁体31可通过粘贴的方式固定于所述活动外环2222的下表面。Preferably, in this preferred embodiment of the present invention, the movable ring 222 is made of metal, such as iron and iron alloys. The magnet 31 is adsorbed on the lower surface of the movable outer ring 2222 of the movable ring 222 . The movable outer ring 2222 of the movable ring 222 may be circular or square. Optionally, in other optional embodiments of the present invention, the movable ring 222 can be made of other materials, and the magnet 31 can be fixed to the lower surface of the movable outer ring 2222 by sticking.
所述固定环212的所述外环部2122进一步设有一安装槽21220，所述电磁驱动器30的所述电磁元件32被设置于所述外环部212的所述安装槽21220，其中时所述外环部2122的所述安装槽21220被形成于所述外环部2122的上表面，并且自所述外环部2122的所述上表面向下凹。所述活动环222的所述活动外环部2222进一步设有一固定槽22220，其中所述电磁驱动器30的所述磁体31被设置于所述活动外环部2222的所述固定槽22220。所述活动外环部2222的所述固定槽2220被形成于所述活动外环部2222的下表面，并且自所述活动外环部2222的下表面向上凹。The outer ring portion 2122 of the fixing ring 212 is further provided with an installation groove 21220, and the electromagnetic element 32 of the electromagnetic driver 30 is disposed in the installation groove 21220 of the outer ring portion 212, wherein the The mounting groove 21220 of the outer ring portion 2122 is formed on the upper surface of the outer ring portion 2122 and is recessed downward from the upper surface of the outer ring portion 2122 . The movable outer ring portion 2222 of the movable ring 222 is further provided with a fixing groove 22220 , wherein the magnet 31 of the electromagnetic driver 30 is disposed in the fixing groove 22220 of the movable outer ring portion 2222 . The fixing groove 2220 of the movable outer ring portion 2222 is formed on the lower surface of the movable outer ring portion 2222 and concave upward from the lower surface of the movable outer ring portion 2222 .
可以理解的是，所述外环部2122的所述安装槽21220和活动外环部2222的所述固定槽22220为所述电磁驱动器30提供了容纳安装位置，并且为所述活动环222的移动提供了活动空间，有利于所述电磁驱动器30提供充足的驱动作用力。It can be understood that, the mounting groove 21220 of the outer ring portion 2122 and the fixing groove 22220 of the movable outer ring portion 2222 provide a receiving and mounting position for the electromagnetic driver 30 and provide a movement of the movable ring 222 The movable space is provided, which is favorable for the electromagnetic driver 30 to provide sufficient driving force.
所述电磁元件32进一步包括至少一电磁线圈321和与所述电磁线圈321相邻近设置的一金属芯322，其中所述金属芯322为环形或条状的导磁材料，当所述电磁线圈321被电导通时，位于所述电磁线圈321附近的所述金属芯322被磁化，以吸引或排斥所述磁体31。The electromagnetic element 32 further includes at least one electromagnetic coil 321 and a metal core 322 disposed adjacent to the electromagnetic coil 321, wherein the metal core 322 is a ring-shaped or strip-shaped magnetically conductive material. When 321 is electrically turned on, the metal core 322 located near the electromagnetic coil 321 is magnetized to attract or repel the magnet 31 .
优选地，在本发明的该优选实施例中，所述金属芯322为环形或半环形的导磁材料，其中所述金属芯322和所述电磁线圈321环绕于所述变焦元件10的外周。值得一提的是，在本发明的该优选实施例中，所述电磁驱动器30的各所述磁体31正对于所述电磁元件32的所述金属芯322，并且各所述磁体31相互之间呈对称或等间隔地设置。Preferably, in this preferred embodiment of the present invention, the metal core 322 is an annular or semi-annular magnetic conductive material, wherein the metal core 322 and the electromagnetic coil 321 surround the outer circumference of the zoom element 10 . It is worth mentioning that, in this preferred embodiment of the present invention, each of the magnets 31 of the electromagnetic driver 30 is facing the metal core 322 of the electromagnetic element 32 , and each of the magnets 31 is between each other Symmetrical or equally spaced.
如图7示出了本发明该优选实施例的电磁元件32的两种排布方式。所述电磁元件32的所述电磁线圈321环绕所述电磁元件32的所述金属芯322。在本发明的一优选实施例中，所述电磁线圈321内外地环绕所述电磁元件32的所述金属芯322。所述电磁线圈321进一步包括至少一内线圈3211和至少一外线圈3212，其中所述至少一内线圈3211设置于所述金属芯322的内侧，所述至少一外线圈3212被设置于所述金属芯322的外侧。简言之，在本发明的该优选实施例中，所述金属芯322被围设于所述内线圈3211和所述外线圈3212之间。在本发明的该优选实施例中，所述金属芯322被实施为一环形导磁材料或者半环形导磁材料。所述金属芯322进一步包括至少一金属导磁单元3221，所述金属导磁单元3221被设置于所述内线圈3211和所述外线圈3212之间，并且各所述金属导磁单元3221之间相互等间隔地设置。优选地，所述金属芯322的所述金属导磁单元3221呈条状或半环形结构。值得一提的是，在本发明的该优选实施例中，所述电磁线圈321的所述内线圈3211和所述外线圈3212呈环状结构环绕于所述金属芯322。FIG. 7 shows two arrangements of the electromagnetic elements 32 in this preferred embodiment of the present invention. The electromagnetic coil 321 of the electromagnetic element 32 surrounds the metal core 322 of the electromagnetic element 32 . In a preferred embodiment of the present invention, the electromagnetic coil 321 surrounds the metal core 322 of the electromagnetic element 32 internally and externally. The electromagnetic coil 321 further includes at least one inner coil 3211 and at least one outer coil 3212, wherein the at least one inner coil 3211 is disposed inside the metal core 322, and the at least one outer coil 3212 is disposed in the metal core 322. outside of the core 322 . In short, in this preferred embodiment of the present invention, the metal core 322 is enclosed between the inner coil 3211 and the outer coil 3212 . In the preferred embodiment of the present invention, the metal core 322 is implemented as a ring-shaped magnetically conductive material or a semi-ringed magnetically conductive material. The metal core 322 further includes at least one metal permeable metal unit 3221, the metal permeable unit 3221 is disposed between the inner coil 3211 and the outer coil 3212, and between each of the metal permeable units 3221 arranged at equal intervals from each other. Preferably, the metal magnetic conductive unit 3221 of the metal core 322 has a strip or semi-ring structure. It is worth mentioning that, in the preferred embodiment of the present invention, the inner coil 3211 and the outer coil 3212 of the electromagnetic coil 321 surround the metal core 322 in an annular structure.
优选地，所述金属芯322为圆环状金属导磁材料。Preferably, the metal core 322 is an annular metal magnetic conductive material.
值得一提的是，在本发明的该优选实施例中，当所述电磁线圈321的所述内线圈3211和所述外线圈3212被输入电流时，位于所述内线圈3211和所述外线圈3212之间的所述金属芯322被磁化，以产生对所述磁体31吸附作用力或排斥 作用力，进而由所述力传导元件221产生对所述变焦元件10的挤压或拉伸作用，改变其光焦度。作为示例的，当对所述内线圈3211输入顺时针方向的电流，对所述外线圈3212输入逆时针方向的电流，中间的所述金属芯322被磁化。被磁化后的所述电磁元件32的所述金属芯322上端面为N极，下端面为S极，所述电磁元件32对所述磁体31产生磁吸的作用，所述活动环222带动所述力传导元件221发生变形，使所述变焦元件10受到所述力传导元件221的挤压作用，所述变焦元件10变为类似凸透镜的形状，改变了光焦度。It is worth mentioning that in this preferred embodiment of the present invention, when the inner coil 3211 and the outer coil 3212 of the electromagnetic coil 321 are input with current, the inner coil 3211 and the outer coil are located in the inner coil 3211 and the outer coil 3212. The metal core 322 between the 3212 is magnetized to generate an attraction force or a repulsion force to the magnet 31, and then the force conducting element 221 generates a squeezing or stretching effect on the zoom element 10, change its optical power. As an example, when a clockwise current is input to the inner coil 3211 and a counterclockwise current is input to the outer coil 3212, the metal core 322 in the middle is magnetized. The upper end surface of the metal core 322 of the magnetized electromagnetic element 32 is N pole, and the lower end surface is S pole. The electromagnetic element 32 has a magnetic attraction effect on the magnet 31, and the movable ring 222 drives the The force conducting element 221 is deformed, so that the zoom element 10 is squeezed by the force conducting element 221 , and the zoom element 10 becomes a shape similar to a convex lens, changing the optical power.
在本发明的另一较佳实施例中，所述金属芯322进一步包括至少一金属导磁单元3221，所述电磁线圈321进一步包括至少一线圈单元3211，其中一个所述的线圈单元3211环绕于一个所述的金属导磁单元3221的外周。作为示例的，在本发明的该优选实施例中，所述金属芯322的所述金属导磁单元3221的数量为二，并且所述金属导磁单元3221呈半环形结构，所述电磁线圈321的所述线圈单元3211的数量为二，且所述电磁线圈321的所述线圈单元3211环绕于所述金属导磁单元3211的外周，形成一扇环状结构。In another preferred embodiment of the present invention, the metal core 322 further includes at least one metal magnetic conductive unit 3221, the electromagnetic coil 321 further includes at least one coil unit 3211, wherein one of the coil units 3211 surrounds The outer circumference of one of the metal magnetic permeable units 3221. As an example, in this preferred embodiment of the present invention, the number of the metal magnetic conductive units 3221 of the metal core 322 is two, and the metal magnetic conductive units 3221 have a semi-ring structure, and the electromagnetic coil 321 The number of the coil units 3211 is two, and the coil units 3211 of the electromagnetic coil 321 surround the outer circumference of the metal magnetic conductive unit 3211 to form a fan ring structure.
可选地，在本发明的其他可选实施例中，所述金属芯322的所述金属导磁单元3221的数量可以为3、4、5以及更多，并且所述电磁线圈321的数量与所述金属导磁单元3221的数量相适配。Optionally, in other optional embodiments of the present invention, the number of the metal magnetic conductive units 3221 of the metal core 322 may be 3, 4, 5 or more, and the number of the electromagnetic coils 321 is the same as The number of the metal magnetic permeable units 3221 is adapted.
如图6A和图6B所示，在本发明的一个实施例中，所述磁体31的上端部为N极，并且所述磁体31被贴附于所述活动环222的下表面，所述磁体31的下端部为S极，与所述电磁单元32的所述金属芯322相对应。当对所述电磁线圈321的所述内线圈单元3211输入顺时针方向的电流，所述外线圈3212输入逆时针方向的电流，所述金属芯322的所述金属导磁单元3221被磁化，均为上端面为N极，下端面为S极。所述电磁单元32的所述金属芯322对所述磁体31产生吸引作用，其中所述力传导元件221在所述活动环222的带动下发生变形，周侧下压，使所述变焦元件10受到挤压，其中所述变焦元件10变为类似凸透镜的形状，改变了光焦度。可以理解的是，在本发明的该优选实施例中，所述内线圈3211和所述外线圈3212被互为反向地输入电流，以使得位于所述内线圈3211和所述外线圈3212之间的所述金属导磁单元3221被磁化。同理改变电流的方向，对所述电磁线圈321的所述内线圈3211输入逆时针方向的电流，对所述外线圈3212输入顺时针方向电流，则磁化后的所述金属芯322上端面为S极，下端面为N极， 对所述磁体31产生排斥作用，所述力传导元件221周侧上翘，使所述变焦元件10受到拉伸，所述变焦元件10变为类似凹透镜的形状。值得一提的是，当线圈中没有电流时，所述金属芯不磁化，即所述变焦元件10不发生变形。As shown in FIG. 6A and FIG. 6B , in an embodiment of the present invention, the upper end of the magnet 31 is an N-pole, and the magnet 31 is attached to the lower surface of the movable ring 222 . The lower end of 31 is the S pole, which corresponds to the metal core 322 of the electromagnetic unit 32 . When a clockwise current is input to the inner coil unit 3211 of the electromagnetic coil 321, and a counterclockwise current is input to the outer coil 3212, the metal magnetic conductive unit 3221 of the metal core 322 is magnetized, and both The upper end face is the N pole, and the lower end face is the S pole. The metal core 322 of the electromagnetic unit 32 attracts the magnet 31 , wherein the force conducting element 221 is deformed under the driving of the movable ring 222 , and the peripheral side is pressed down, causing the zoom element 10 Squeezed, wherein the zoom element 10 becomes a convex lens-like shape, changing the optical power. It can be understood that, in this preferred embodiment of the present invention, the inner coil 3211 and the outer coil 3212 are input currents in opposite directions to each other, so that the inner coil 3211 and the outer coil 3212 are located between the inner coil 3211 and the outer coil 3212. The metal magnetic permeable unit 3221 in between is magnetized. In the same way, the direction of the current is changed, and a counterclockwise current is input to the inner coil 3211 of the electromagnetic coil 321, and a clockwise current is input to the outer coil 3212, then the upper end face of the magnetized metal core 322 is The S pole, the lower end surface is the N pole, has a repulsive effect on the magnet 31, the peripheral side of the force conducting element 221 is upturned, so that the zoom element 10 is stretched, and the zoom element 10 becomes a shape similar to a concave lens . It is worth mentioning that when there is no current in the coil, the metal core is not magnetized, that is, the zoom element 10 is not deformed.
所述电磁单元32进一步包括至少一电气连接单元323，其中所述电气连接单元323被电气连接于所述电磁单元32的所述电磁线圈321，通过所述电气连接单元323为所述电磁线圈321输入电流。The electromagnetic unit 32 further includes at least one electrical connection unit 323, wherein the electrical connection unit 323 is electrically connected to the electromagnetic coil 321 of the electromagnetic unit 32, and the electromagnetic coil 321 is connected to the electromagnetic coil 321 through the electrical connection unit 323. Input Current.
优选地，在本发明的该优选实施例中，所述电磁线圈321被设置于所述固定环212。值得一提的是，当所述固定环212的外环部2122为正方形时，所述电气连接单元323被设置于所述外环部2122的一角，当所述固定环212的所述外环部2122为圆形时，所述电气连接单元323被设置于所述外环部2122的背面，以移除四角落多余的部分，减小整体占用空间。Preferably, in this preferred embodiment of the present invention, the electromagnetic coil 321 is arranged on the fixing ring 212 . It is worth mentioning that, when the outer ring portion 2122 of the fixing ring 212 is square, the electrical connection unit 323 is disposed at a corner of the outer ring portion 2122 . When the portion 2122 is circular, the electrical connection unit 323 is disposed on the back of the outer ring portion 2122 to remove redundant parts at the four corners and reduce the overall occupied space.
参照本发明说明书附图至图8至图11所示，依照本发明第二较佳实施例的一可变焦光学装置在接下来的描述中被阐明。所述可变焦光学装置包括一变焦元件10A、一固定传导组件20A以及至少一电磁驱动器30A，其中所述变焦元件10A和所述电磁驱动器30A被固定至所述固定传导组件20A，所述电磁驱动器30A在通电情况下产生电磁作用力，由所述电磁驱动器30A驱动所述固定传导组件20A移动，借以所述固定传导组件20A驱动所述变焦元件变形，以改变所述可变焦光学装置的光焦度。所述固定传导组件20A包括一固定部件21A和一活动部件22A，其中所述固定部件21A和所述活动部件22A之间形成一调整空间201A，所述变焦元件10A被固定于所述固定部件21A和所述活动部件22A之间的所述调整空间201A。所述电磁驱动器30A被设置于所述固定传导组件20A的所述固定部件21A和所述活动部件22A。所述电磁驱动器30A进一步包括二或以上的磁体31A和二或以上的电磁元件32A，其中所述磁体31A与所述电磁元件32A相间隔地和相互交错地设置。所述磁体31A被设置于所述固定部件21A，所述电磁元件32A被设置于所述活动部件22A；或者所述磁体31A被设置于所述活动部件22A，所述电磁元件被设置于所述固定部件21A。所述固定部件21A包括一基底211A和一固定环212A，其中所述基底211A被设置于所述变焦元件10A沿光传导方向的一侧。所述固定环212A包括一内环部2121A和自所述内环部2121A向外延伸的二或以上的外环部2122A，其中所述外环部2122A位于所述内环部2121A的外侧。所述电磁驱动器30A的所述电磁元件32A 被设置于所述固定环212A的所述外环部2122A。Referring to the accompanying drawings to FIG. 8 to FIG. 11 of the present specification, a variable focus optical device according to a second preferred embodiment of the present invention is explained in the following description. The variable-focus optical device includes a zoom element 10A, a fixed conductive member 20A, and at least one electromagnetic driver 30A, wherein the zoom element 10A and the electromagnetic driver 30A are fixed to the fixed conductive member 20A, the electromagnetic driver 30A generates an electromagnetic force under the condition of power-on, and the fixed conduction component 20A is driven by the electromagnetic driver 30A to move, whereby the fixed conduction component 20A drives the zoom element to deform, so as to change the optical focus of the variable focus optical device Spend. The fixed conduction assembly 20A includes a fixed part 21A and a movable part 22A, wherein an adjustment space 201A is formed between the fixed part 21A and the movable part 22A, and the zoom element 10A is fixed to the fixed part 21A and the adjustment space 201A between the movable part 22A. The electromagnetic driver 30A is provided on the fixed part 21A and the movable part 22A of the fixed conductive assembly 20A. The electromagnetic driver 30A further includes two or more magnets 31A and two or more electromagnetic elements 32A, wherein the magnets 31A and the electromagnetic elements 32A are spaced and interlaced with each other. The magnet 31A is provided on the fixed part 21A, and the electromagnetic element 32A is provided on the movable part 22A; or the magnet 31A is provided on the movable part 22A, and the electromagnetic element is provided on the movable part 22A. Fixed part 21A. The fixing member 21A includes a base 211A and a fixing ring 212A, wherein the base 211A is disposed on one side of the zoom element 10A along the light transmission direction. The fixing ring 212A includes an inner ring portion 2121A and two or more outer ring portions 2122A extending outward from the inner ring portion 2121A, wherein the outer ring portion 2122A is located outside the inner ring portion 2121A. The electromagnetic element 32A of the electromagnetic driver 30A is provided on the outer ring portion 2122A of the fixing ring 212A.
作为示例的，在本发明的该优选实施例中，所述电磁驱动器30A的所述磁体31A和所述电磁元件32A的数量为四时，所述磁体31A与所述电磁元件32A相互间隔地和相互交错地设置。相应地，所述固定环212A的所述外环部2122A的数量为四，且所述电磁元件32A被设置于所述固定环212A的所述外环部2122A。As an example, in this preferred embodiment of the present invention, when the number of the magnets 31A and the electromagnetic elements 32A of the electromagnetic driver 30A is four, the magnets 31A and the electromagnetic elements 32A are spaced apart from each other and interleaved with each other. Correspondingly, the number of the outer ring portion 2122A of the fixing ring 212A is four, and the electromagnetic element 32A is disposed on the outer ring portion 2122A of the fixing ring 212A.
所述活动部件22A与所述固定部件21A相对设置，其中所述活动部件22A进一步包括一力传导元件221A和一活动环222A，其中所述力传导元件221A与所述活动环222A相传动地连接。所述活动环222A进一步包括一活动内环部2221A和自所述活动内环部2221A一体地向外延伸的二或以上的活动外环部2222A。所述电磁驱动器30A的所述磁体31A被设置于所述活动环222A的所述活动外环部2222A。优选地，在本发明的该优选示例中，所述磁体31A被贴附于所述活动外环部2222A的下表面。The movable part 22A is arranged opposite to the fixed part 21A, wherein the movable part 22A further comprises a force transmission element 221A and a movable ring 222A, wherein the force transmission element 221A is connected with the movable ring 222A in a driving manner . The movable ring 222A further includes a movable inner ring portion 2221A and two or more movable outer ring portions 2222A integrally extending outward from the movable inner ring portion 2221A. The magnet 31A of the electromagnetic driver 30A is disposed on the movable outer ring portion 2222A of the movable ring 222A. Preferably, in this preferred example of the present invention, the magnet 31A is attached to the lower surface of the movable outer ring portion 2222A.
所述固定环212A的相邻两所述外环部2122A之间设有一空槽21201A，所述活动环222A的相邻两所述活动外环部2222A之间设有一空窗22201A，所述活动环222A的所述活动外环部2222A对应于所述固定环212A的所述空槽21201A，所述固定环212A的所述外环部2122A对应于所述活动环222A的所述空窗22201A。换言之，在本发明的该优选实施例中，所述固定环212A的所述外环部2122A与所述活动环222A的所述活动外环部2222A相互交错地对位设置。相应地，在本发明的该优选实施例中，所述电磁驱动器30A的所述磁体31A与所述电磁元件32A相互间隔地和交错地设置。An empty groove 21201A is formed between two adjacent outer ring portions 2122A of the fixed ring 212A, and an empty window 22201A is formed between two adjacent movable outer ring portions 2222A of the movable ring 222A. The movable outer ring portion 2222A of the ring 222A corresponds to the hollow groove 21201A of the fixed ring 212A, and the outer ring portion 2122A of the fixed ring 212A corresponds to the hollow window 22201A of the movable ring 222A. In other words, in the preferred embodiment of the present invention, the outer ring portion 2122A of the fixed ring 212A and the movable outer ring portion 2222A of the movable ring 222A are arranged in a staggered alignment with each other. Correspondingly, in this preferred embodiment of the present invention, the magnets 31A and the electromagnetic elements 32A of the electromagnetic drive 30A are spaced and staggered from each other.
在本发明的该优选实施例中，所述电磁驱动器30A的所述磁体31A被贴附于所述活动环222A的所述活动外环部2222A，其中所述磁体31A正对于所述固定环212A的所述空槽21201A，所述电磁元件32A被设置于所述固定环212A的所述外环部2122A，其中所述电源元件32A正对于所述活动环222A的所述空窗22201A。因此，所述电磁驱动器30A的所述磁体31A和所述电磁元件32A不受到所述固定部件21A和所述活动部件22A在高度方向的限制，节省了高度方向的空间，有利于所述可变焦光学装置的小型化。In this preferred embodiment of the present invention, the magnet 31A of the electromagnetic driver 30A is attached to the movable outer ring portion 2222A of the movable ring 222A, wherein the magnet 31A is facing the fixed ring 212A The hollow groove 21201A, the electromagnetic element 32A is disposed on the outer ring portion 2122A of the fixed ring 212A, wherein the power supply element 32A is facing the hollow window 22201A of the movable ring 222A. Therefore, the magnet 31A and the electromagnetic element 32A of the electromagnetic driver 30A are not restricted by the fixed part 21A and the movable part 22A in the height direction, which saves space in the height direction and is beneficial to the variable focus. Miniaturization of optical devices.
值得一提的是，在本发明的该优选实施例中，所述固定环212A的所述外环部2122A呈圆形或方形结构，所述活动环222A的所述活动外环部2222A呈圆形或方形结构。可以理解的是，在本发明的该优选实施例中，所述固定环212A 和所述活动环222A的形状在此仅仅作为示例性质的，而非限制。因此，在本发明的其他可选实施例中，所述活动环222A和所述固定环212A可以被设置为五边形或六边形结构，相应地，在该优选实施例中，所述电磁驱动器30A的所述磁体31A和所述电磁元件32A的数量为五或六。It is worth mentioning that, in the preferred embodiment of the present invention, the outer ring portion 2122A of the fixed ring 212A has a circular or square structure, and the movable outer ring portion 2222A of the movable ring 222A has a circular shape shape or square structure. It can be understood that, in this preferred embodiment of the present invention, the shapes of the fixed ring 212A and the movable ring 222A are merely illustrative, rather than limiting. Therefore, in other optional embodiments of the present invention, the movable ring 222A and the fixed ring 212A can be set in a pentagonal or hexagonal structure. Correspondingly, in this preferred embodiment, the electromagnetic The number of the magnets 31A and the electromagnetic elements 32A of the driver 30A is five or six.
作为示例的，所述电磁驱动器30A的磁体31A数量可以是4个，磁体31A的上表面贴附于活动环222A的所述活动外环部2222A的下表面，所述磁体31A相互间隔90°地环绕变焦元件10A设置，其左右端部对应N极或S极。在本发明的该优选实施例中，所述磁体31A横向设置，其中所述磁体31A的N极和S极朝向与之相互交错设置的所述电磁元件32A。As an example, the number of magnets 31A of the electromagnetic driver 30A may be four, the upper surface of the magnets 31A is attached to the lower surface of the movable outer ring portion 2222A of the movable ring 222A, and the magnets 31A are spaced 90° apart from each other. It is arranged around the zoom element 10A, and its left and right ends correspond to the N pole or the S pole. In this preferred embodiment of the present invention, the magnets 31A are arranged laterally, wherein the N and S poles of the magnets 31A are oriented towards the electromagnetic elements 32A which are arranged alternately therewith.
优选地，所述固定环212A位正方向环状结构，其中所述固定环212A的所述空槽21201A被形成于所述固定环212A四边的中间位置，用以在活动部件21A与所述固定部件22A连接时容纳所述磁体31A。所述固定环212A的四角落均设置一电磁元件32A。Preferably, the fixing ring 212A is a positive ring-shaped structure, wherein the hollow groove 21201A of the fixing ring 212A is formed in the middle position of the four sides of the fixing ring 212A, for fixing the movable part 21A to the fixing ring 212A. Part 22A accommodates said magnet 31A when connected. Four corners of the fixing ring 212A are provided with an electromagnetic element 32A.
所述电磁元件32A包括至少一电磁线圈321A和至少一金属芯322A，其中所述电磁线圈321A被邻近地环绕于所述金属芯322A，以使得所述电磁线圈321A在通电情况下使得所述金属芯322A被磁化。优选地，在本发明的该优选实施例中，所述金属芯322A被所述电磁线圈321A缠绕或包裹。The electromagnetic element 32A includes at least one electromagnetic coil 321A and at least one metal core 322A, wherein the electromagnetic coil 321A is adjacently surrounded by the metal core 322A, so that the electromagnetic coil 321A makes the metal core 322A when energized. The core 322A is magnetized. Preferably, in this preferred embodiment of the present invention, the metal core 322A is wound or wrapped by the electromagnetic coil 321A.
值得一提的是，在本发明的该优选实施例中，所述电磁元件32A的所述金属芯322A与所述磁体31A相互交错地设置。优选地，所述电磁元件32A的所述金属芯322A的位置与所述磁体31A的位置大致地平行或者所述磁体31A的位置稍高于所述金属芯322A的高度。It is worth mentioning that, in this preferred embodiment of the present invention, the metal core 322A of the electromagnetic element 32A and the magnet 31A are arranged in a staggered manner. Preferably, the position of the metal core 322A of the electromagnetic element 32A is substantially parallel to the position of the magnet 31A or the position of the magnet 31A is slightly higher than the height of the metal core 322A.
所述金属芯322A为一条状或环状导磁材料，其中所述金属芯322A包括一金属磁化部3221A和自所述金属磁化部3221A一体延伸的至少一金属导磁部3222A，其中所述电磁线圈322A被设置于所述金属芯322A的所述金属磁化部3221A。优选地，在本发明的该优选实施例中，所述金属磁化部3221A位于两个所述金属导磁部3222A之间，当所述金属芯322A的所述金属磁化部3221A被磁化时，由所述金属导磁部3222A传导所述金属磁化部3221A的磁性作用。所述金属芯322A的所述金属导磁部3222A位于所述金属磁化部3221A的两端，并且所述金属导磁部3222A的端部朝向所述磁体31A的N极或S极。当对所述电磁线圈321A输入某一相同方向的电流时，所述金属芯322A被磁化，使得所 述金属芯322A的两端变为N极或S极，吸引或排斥所述磁体31A，同时使力传导元件211A发生变形，挤压或拉伸所述变焦元件10A，以改变其光焦度。The metal core 322A is a strip or annular magnetic conductive material, wherein the metal core 322A includes a metal magnetized portion 3221A and at least one metal magnetic conductive portion 3222A integrally extending from the metal magnetized portion 3221A, wherein the electromagnetic The coil 322A is provided on the metal magnetized portion 3221A of the metal core 322A. Preferably, in this preferred embodiment of the present invention, the metal magnetized portion 3221A is located between the two metal magnetic conductive portions 3222A. When the metal magnetized portion 3221A of the metal core 322A is magnetized, the The metal magnetic conductive portion 3222A conducts the magnetic effect of the metal magnetized portion 3221A. The metal magnetic conductive parts 3222A of the metal core 322A are located at both ends of the metal magnetized part 3221A, and the ends of the metal magnetic conductive parts 3222A face the N pole or the S pole of the magnet 31A. When a current in the same direction is input to the electromagnetic coil 321A, the metal core 322A is magnetized, so that both ends of the metal core 322A become N-pole or S-pole, attracting or repelling the magnet 31A, and at the same time The force-conducting element 211A is deformed, squeezing or stretching the zoom element 10A to change its optical power.
值得一提的是，在本发明的该优选实施例中，在这个实施例中，由于交错设置的所述磁体31A和所述金属芯322A，当所述固定部件21A的所述固定环212A的所述外环部2122A为正方形或其它多边形时，比如六边形或八边形结构，其角落空间需要加以利用。所述可变焦光学装置的所述电磁驱动器30A可以产生更大的推力或斥力。It is worth mentioning that, in this preferred embodiment of the present invention, in this embodiment, due to the staggered arrangement of the magnet 31A and the metal core 322A, when the fixing ring 212A of the fixing member 21A is When the outer ring portion 2122A is a square or other polygon, such as a hexagonal or octagonal structure, the corner space thereof needs to be utilized. The electromagnetic actuator 30A of the variable focus optical device can generate a larger thrust or repulsion force.
参照本发明说明书附图之图12和图13所示，依照本发明另一方面的一镜头和带有所述镜头的一摄像模组在接下来的描述中被阐明。所述镜头包括一镜头主体100和被设置于所述镜头主体100的至少一可变焦光学装置200，其中所述可变焦光学装置与上述第一较佳实施例和所述第二较佳实施例中的所述可变焦光学装置相同。简言之，本发明该优选实施例的所述镜头应用了上述较佳实施例的所述可变焦光学装置。因此，本发明所述可变焦光学装置200的具体结构在此不做赘述。Referring to FIGS. 12 and 13 of the accompanying drawings of the present invention, a lens and a camera module with the lens according to another aspect of the present invention are explained in the following description. The lens includes a lens body 100 and at least one variable-focus optical device 200 disposed on the lens body 100, wherein the variable-focus optical device is the same as the above-mentioned first preferred embodiment and the second preferred embodiment The variable focus optics in are the same. In short, the lens of this preferred embodiment of the present invention applies the variable-focus optical device of the above preferred embodiment. Therefore, the specific structure of the variable-focus optical device 200 of the present invention will not be repeated here.
所述镜头主体100包括至少一光学镜片110和固定所述至少一光学镜片100的一镜片固定装置120，其中所述至少一光学镜片110被固定于所述镜片固定装置120，并由所述镜片固定装置120保持所述光学镜片110位置的稳定。值得一提的是，在本发明的该优选实施例中，所述可变焦光学装置200可被设置于所述镜头主体100的上方、下方或者所述镜头主体100之间，用以调节所述镜头的光焦度。The lens body 100 includes at least one optical lens 110 and a lens fixing device 120 for fixing the at least one optical lens 100, wherein the at least one optical lens 110 is fixed to the lens fixing device 120, and the lens is fixed by the lens The fixing device 120 keeps the position of the optical lens 110 stable. It is worth mentioning that, in this preferred embodiment of the present invention, the variable-focus optical device 200 can be disposed above, below the lens body 100 or between the lens bodies 100 to adjust the The optical power of the lens.
相应地，所述摄像模组包括一镜头1000和至少一成像组件2000，其中所述成像组件2000沿所述镜头1000的一光轴方向设置，所述镜头1000与上述较佳实施例的所述镜头的结构相同。本领域技术人员可以理解的是，将上述可变焦光学装置设置在所述摄像模组中，可以通过控制输入电流改变其光焦度来实现整体的变焦功能。相对于现有技术的摄像模组省去了体积较大的马达结构，摄像模组整体占电子设备的空间更小，对焦精度更高。由于所述可变焦光学装置的体积小的优势，可以设置在镜头中任意一片的位置。进一步地，在镜座(模塑体)中嵌入金属，一端连接至线路板上的驱动电路，另一端与可变焦光学装置的所述固定部件21的引脚连接，可以实现所述可变焦光学装置与驱动电路的电连接，相当于将外部导通电路隐藏至镜座中，可有效减少外露引线断裂的风险，并进一步减 小了摄像模组的体积。Correspondingly, the camera module includes a lens 1000 and at least one imaging assembly 2000, wherein the imaging assembly 2000 is arranged along an optical axis of the lens 1000, and the lens 1000 is the same as the one described in the above preferred embodiment. The structure of the lens is the same. It can be understood by those skilled in the art that, by arranging the above-mentioned variable-focus optical device in the camera module, the overall zoom function can be realized by controlling the input current to change its optical power. Compared with the camera module in the prior art, the larger motor structure is omitted, the overall camera module occupies less space in the electronic device, and the focusing precision is higher. Due to the advantages of the small size of the variable-focus optical device, it can be set at any position in the lens. Further, metal is embedded in the lens holder (molded body), one end is connected to the drive circuit on the circuit board, and the other end is connected to the pin of the fixed part 21 of the variable-focus optical device, so that the variable-focus optical device can be realized. The electrical connection between the device and the driving circuit is equivalent to hiding the external conducting circuit in the lens holder, which can effectively reduce the risk of breakage of the exposed leads and further reduce the volume of the camera module.
本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的目的已经完整并有效地实现。本发明的功能及结构原理已在实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。It should be understood by those skilled in the art that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may be modified or modified in any way without departing from the principles.

Claims (27)

  1. 一可变焦光学装置，其特征在于，包括：A variable-focus optical device, characterized in that it includes:
    一变焦元件；a zoom element;
    一固定传导组件，其中所述固定传导组件包括一固定部件和一活动部件，所述变焦元件被固定于所述固定部件和所述活动部件之间；以及a fixed conduction assembly, wherein the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part; and
    至少一电磁驱动器，其中所述电磁驱动器被设置于所述固定传导组件，且所述电磁驱动器可传动于所述活动部件，当所述电磁驱动器电导通时，驱动所述活动部件移动，由所述活动部件挤压或拉伸所述变焦元件，以改变所述可变焦光学装置的光焦度。At least one electromagnetic driver, wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
  2. 根据权利要求1所述的可变焦光学装置，其中所述电磁驱动器包括至少一磁体和与所述至少一磁体相对设置的至少一电磁元件，其中所述磁体被设置于所述活动部件，所述电磁元件被设置于所述固定部件；或者所述磁体被设置于所述固定部件，所述电磁元件被设置于所述活动部件。The variable focus optical device of claim 1, wherein the electromagnetic driver comprises at least one magnet and at least one electromagnetic element disposed opposite the at least one magnet, wherein the magnet is disposed to the movable part, the The electromagnetic element is provided on the fixed part; or the magnet is provided on the fixed part, and the electromagnetic element is provided on the movable part.
  3. 根据权利要求1所述的可变焦光学装置，其中所述电磁驱动器进一步包括二或以上的磁体和二或以上的电磁元件，其中所述磁体与所述电磁元件相间隔地和相互交错地设置，所述磁体被设置于所述固定部件，所述电磁元件被设置于所述活动部件；或者所述磁体被设置于所述活动部件，所述电磁元件被设置于所述固定部件。The variable focus optical device of claim 1, wherein the electromagnetic driver further comprises two or more magnets and two or more electromagnetic elements, wherein the magnets and the electromagnetic elements are spaced and interleaved with each other, The magnet is provided on the fixed part, and the electromagnetic element is provided on the movable part; or the magnet is provided on the movable part, and the electromagnetic element is provided on the fixed part.
  4. 根据权利要求2或3所述的可变焦光学装置，其中所述固定部件包括一基底和一固定环，其中所述基底被设置于所述变焦元件沿光传导方向的一侧，所述固定环呈环状结构，且所述固定环位于所述基底的外沿。The variable focus optical device according to claim 2 or 3, wherein the fixing member comprises a base and a fixing ring, wherein the base is provided on one side of the zoom element along the light transmission direction, and the fixing ring It has an annular structure, and the fixing ring is located on the outer edge of the base.
  5. 根据权利要求4所述的可变焦光学装置，其中所述基底与所述固定环相固定地连接，其中所述基底为一可弯曲膜或一平板玻璃。The variable focus optical device according to claim 4, wherein the base is fixedly connected with the fixing ring, wherein the base is a flexible film or a flat glass.
  6. 根据权利要求4所述的可变焦光学装置，其中所述变焦元件包括一透光部和自所述透光部向外一体延伸的一边缘部，其中光线可透过所述变焦元件的所述透光部，所述变焦元件的所述边缘部位于所述透光部的外侧，并且所述固定传导组件的所述固定部件和所述活动部件支撑在所述变焦元件的所述边缘部。The variable-focus optical device according to claim 4, wherein the zoom element comprises a light-transmitting portion and an edge portion integrally extending outward from the light-transmitting portion, wherein light can pass through the zoom element. A light-transmitting part, the edge part of the zoom element is located outside the light-transmitting part, and the fixed part and the movable part of the fixed conducting assembly are supported on the edge part of the zoom element.
  7. 根据权利要求4所述的可变焦光学装置，其中所述固定环包括一内环部和自所述内环部向外延伸的一外环部，其中所述外环部位于所述内环部的外侧，所述固定环的所述内环部支撑和固定所述变焦元件，所述电磁元件被设置于所述固定环的所述外环部，借以所述固定环的所述外环部固定和支撑所述电磁驱动器 的所述电磁元件。The variable-focus optical device of claim 4, wherein the fixed ring comprises an inner ring portion and an outer ring portion extending outward from the inner ring portion, wherein the outer ring portion is located on the inner ring portion the outer side of the fixing ring, the inner ring portion of the fixing ring supports and fixes the zoom element, and the electromagnetic element is arranged on the outer ring portion of the fixing ring, whereby the outer ring portion of the fixing ring The electromagnetic element of the electromagnetic drive is fixed and supported.
  8. 根据权利要求7所述的可变焦光学装置，其中所述固定环为金属材质，所述电磁元件通过胶粘或贴附的方式被设置于所述固定环的所述外环部的上表面。The variable-focus optical device according to claim 7, wherein the fixing ring is made of metal, and the electromagnetic element is disposed on the upper surface of the outer ring portion of the fixing ring by means of gluing or sticking.
  9. 根据权利要求4所述的可变焦光学装置，其中所述活动部件进一步包括一力传导元件和一活动环，其中所述力传导元件与所述活动环相传动地连接，所述电磁驱动器的所述磁体被设置于所述活动环。4. The variable focus optical device of claim 4, wherein the movable member further comprises a force-conducting element and a movable ring, wherein the force-conducting element is drivingly connected to the movable ring, and all of the electromagnetic actuators The magnet is provided on the movable ring.
  10. 根据权利要求7所述的可变焦光学装置，其中所述活动部件进一步包括一力传导元件和一活动环，其中所述力传导元件与所述活动环相传动地连接，所述电磁驱动器的所述磁体被设置于所述活动环。7. The variable focus optical device of claim 7, wherein the movable member further comprises a force-conducting element and a movable ring, wherein the force-transmitting element is drivingly connected to the movable ring, and all of the electromagnetic actuators The magnet is provided on the movable ring.
  11. 根据权利要求10所述的可变焦光学装置，其中所述力传导元件被实施为一力传导膜。11. The variable focus optical device of claim 10, wherein the force-conducting element is implemented as a force-conducting film.
  12. 根据权利要求10所述的可变焦光学装置，其中所述活动环进一步包括一活动内环部和一活动外环部，其中所述活动内环部与所述活动外环部相传动地连接，由所述活动外环部带动所述活动内环部移动，所述电磁驱动器的所述磁体被固定至所述活动环的所述活动外环部的下表面。The variable-focus optical device according to claim 10, wherein the movable ring further comprises a movable inner ring part and a movable outer ring part, wherein the movable inner ring part is drivingly connected with the movable outer ring part, The movable inner ring portion is driven to move by the movable outer ring portion, and the magnet of the electromagnetic driver is fixed to the lower surface of the movable outer ring portion of the movable ring.
  13. 根据权利要求2所述的可变焦光学装置，其中所述磁体纵向设置，其中所述磁体的N极或S极朝向所述电磁元件。The variable focus optical device according to claim 2, wherein the magnet is arranged longitudinally, wherein the N pole or the S pole of the magnet faces the electromagnetic element.
  14. 根据权利要求4所述的可变焦光学装置，其中所述电磁元件进一步包括至少一电磁线圈和与所述电磁线圈相邻近设置的一金属芯，其中所述金属芯为环形或条状的导磁材料。The variable focus optical device according to claim 4, wherein the electromagnetic element further comprises at least one electromagnetic coil and a metal core disposed adjacent to the electromagnetic coil, wherein the metal core is a ring-shaped or strip-shaped conductor magnetic material.
  15. 根据权利要求14所述的可变焦光学装置，其中所述电磁线圈进一步包括至少一内线圈和至少一外线圈，其中所述至少一内线圈设置于所述金属芯的内侧，所述至少一外线圈被设置于所述金属芯的外侧。The variable focus optical device of claim 14, wherein the electromagnetic coil further comprises at least one inner coil and at least one outer coil, wherein the at least one inner coil is disposed inside the metal core, and the at least one outer coil The coil is provided outside the metal core.
  16. 根据权利要求15所述的可变焦光学装置，其中所述金属芯进一步包括至少一金属导磁单元，所述金属导磁单元被设置于所述内线圈和所述外线圈之间，并且各所述金属导磁单元之间相互等间隔地设置。The variable-focus optical device according to claim 15, wherein the metal core further comprises at least one metal magnetic permeable unit, the metal permeable metal unit is disposed between the inner coil and the outer coil, and each of the The metal magnetic permeable units are arranged at equal intervals from each other.
  17. 根据权利要求14所述的可变焦光学装置，其中所述金属芯进一步包括至少一金属导磁单元，所述电磁线圈进一步包括至少一线圈单元，其中一个所述的线圈单元环绕于一个所述的金属导磁单元的外周。The variable-focus optical device according to claim 14, wherein the metal core further comprises at least one metal magnetic permeable unit, the electromagnetic coil further comprises at least one coil unit, wherein one of the coil units surrounds one of the The outer circumference of the metal magnetic permeable unit.
  18. 根据权利要求4所述的可变焦光学装置，其中所述固定环包括一内环部和自所述内环部向外延伸的二或以上的外环部，其中所述电磁驱动器的所述电磁元件被设置于所述固定环的所述外环部。The variable focus optical device according to claim 4, wherein the fixed ring includes an inner ring portion and two or more outer ring portions extending outward from the inner ring portion, wherein the electromagnetic drive of the electromagnetic driver An element is provided on the outer ring portion of the fixing ring.
  19. 根据权利要求18所述的可变焦光学装置，其中所述活动环进一步包括一活动内环部和自所述活动内环部一体地向外延伸的二或以上的活动外环部，所述电磁驱动器的所述磁体被设置于所述活动环的所述活动外环部。The variable-focus optical device according to claim 18, wherein the movable ring further comprises a movable inner ring portion and two or more movable outer ring portions integrally extending outward from the movable inner ring portion, the electromagnetic The magnet of the driver is provided on the movable outer ring portion of the movable ring.
  20. 根据权利要求19所述的可变焦光学装置，其中所述固定环的相邻两所述外环部之间设有一空槽，所述活动环的相邻两所述活动外环部之间设有一空窗，所述活动环的所述活动外环部对应于所述固定环的所述空槽，所述固定环的所述外环部对应于所述活动环的所述空窗。The variable-focus optical device according to claim 19, wherein an empty groove is formed between two adjacent outer ring parts of the fixed ring, and a hollow groove is formed between two adjacent movable outer ring parts of the movable ring There is an empty window, the movable outer ring part of the movable ring corresponds to the hollow groove of the fixed ring, and the outer ring part of the fixed ring corresponds to the empty window of the movable ring.
  21. 根据权利要求19所述的可变焦光学装置，其中所述电磁驱动器的所述磁体被贴附于所述活动环的所述活动外环部，其中所述磁体正对于所述固定环的所述空槽，所述电磁元件被设置于所述固定环的所述外环部，其中所述电源元件正对于所述活动环的所述空窗。19. The variable focus optical device of claim 19, wherein the magnet of the electromagnetic driver is attached to the movable outer ring portion of the movable ring, wherein the magnet is opposite to the movable ring of the fixed ring An empty slot, the electromagnetic element is arranged on the outer ring portion of the fixed ring, wherein the power supply element is facing the empty window of the movable ring.
  22. 根据权利要求19所述的可变焦光学装置，其中所述电磁驱动器的磁体数量是4个，磁体的上表面贴附于活动环的所述活动外环部的下表面，所述磁体相互间隔90°地环绕变焦元件设置，其左右端部对应N极或S极，所述磁体横向设置，其中所述磁体的N极和S极朝向与之相互交错设置的所述电磁元件。The variable-focus optical device according to claim 19, wherein the number of magnets of the electromagnetic drive is 4, the upper surface of the magnets is attached to the lower surface of the movable outer ring portion of the movable ring, and the magnets are spaced apart from each other by 90° It is arranged around the zoom element at a degree angle, and its left and right ends correspond to N poles or S poles. The magnets are arranged laterally, wherein the N poles and S poles of the magnets face the electromagnetic elements that are arranged alternately therewith.
  23. 根据权利要求19所述的可变焦光学装置，其中所述电磁元件包括至少一电磁线圈和至少一金属芯，其中所述电磁线圈被邻近地环绕于所述金属芯，所述电磁元件的所述金属芯与所述磁体相互交错地设置。19. The variable focus optical device of claim 19, wherein the electromagnetic element comprises at least one electromagnetic coil and at least one metal core, wherein the electromagnetic coil is adjacently surrounded by the metal core, the electromagnetic element The metal cores are interleaved with the magnets.
  24. 根据权利要求23所述的可变焦光学装置，其中所述金属芯包括一金属磁化部和自所述金属磁化部一体延伸的至少一金属导磁部，其中所述电磁线圈被设置于所述金属芯的所述金属磁化部，所述金属导磁部的端部朝向所述磁体的N极或S极。The variable focus optical device according to claim 23, wherein the metal core comprises a metal magnetized portion and at least one metal magnetic conductive portion integrally extending from the metal magnetized portion, wherein the electromagnetic coil is disposed on the metal In the metal magnetized part of the core, the end of the metal magnetic conductive part faces the N pole or the S pole of the magnet.
  25. 根据权利要求2所述的可变焦光学装置，其中所述电磁驱动器的所述磁体的数量为一时，所述磁体呈现环形结构，且所述磁体的轴心与所述变焦元件的光轴相重合；当所述磁体的数量超过一时，所述磁体均匀地和等间隔地分布于所述变焦元件的外侧。The variable-focus optical device according to claim 2, wherein when the number of the magnets of the electromagnetic driver is one, the magnets exhibit a ring structure, and the axis of the magnets coincides with the optical axis of the zoom element ; When the number of the magnets exceeds one, the magnets are evenly and equally spaced outside the zoom element.
  26. 一镜头，其特征在于，包括：A lens, characterized in that it includes:
    一镜头主体；和a lens body; and
    至少一可变焦光学装置，其中所述可变焦光学装置沿所述镜头主体的一光轴方向被设置于所述镜头主体，其中所述可变焦光学装置包括：At least one variable-focus optical device, wherein the variable-focus optical device is disposed on the lens body along an optical axis direction of the lens body, wherein the variable-focus optical device comprises:
    一变焦元件；a zoom element;
    一固定传导组件，其中所述固定传导组件包括一固定部件和一活动部件，所述变焦元件被固定于所述固定部件和所述活动部件之间；以及a fixed conduction assembly, wherein the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part; and
    至少一电磁驱动器，其中所述电磁驱动器被设置于所述固定传导组件，且所述电磁驱动器可传动于所述活动部件，当所述电磁驱动器电导通时，驱动所述活动部件移动，由所述活动部件挤压或拉伸所述变焦元件，以改变所述可变焦光学装置的光焦度。At least one electromagnetic driver, wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
  27. 一摄像模组，其特征在于，包括：A camera module, characterized in that it includes:
    一镜头；和a shot; and
    一成像组件，其中所述成像组件沿所述镜头的光轴方向设置，其中所述镜头包括：An imaging assembly, wherein the imaging assembly is disposed along the optical axis of the lens, wherein the lens includes:
    一镜头主体；和a lens body; and
    至少一可变焦光学装置，其中所述可变焦光学装置沿所述镜头主体的一光轴方向被设置于所述镜头主体，其中所述可变焦光学装置包括：At least one variable-focus optical device, wherein the variable-focus optical device is disposed on the lens body along an optical axis direction of the lens body, wherein the variable-focus optical device comprises:
    一变焦元件；a zoom element;
    一固定传导组件，其中所述固定传导组件包括一固定部件和一活动部件，所述变焦元件被固定于所述固定部件和所述活动部件之间；以及a fixed conduction assembly, wherein the fixed conduction assembly includes a fixed part and a movable part, and the zoom element is fixed between the fixed part and the movable part; and
    至少一电磁驱动器，其中所述电磁驱动器被设置于所述固定传导组件，且所述电磁驱动器可传动于所述活动部件，当所述电磁驱动器电导通时，驱动所述活动部件移动，由所述活动部件挤压或拉伸所述变焦元件，以改变所述可变焦光学装置的光焦度。At least one electromagnetic driver, wherein the electromagnetic driver is arranged on the fixed conductive component, and the electromagnetic driver can be transmitted to the movable part, when the electromagnetic driver is electrically connected, the movable part is driven to move, and the movable part is driven by the The movable part squeezes or stretches the zoom element to change the optical power of the variable focus optical device.
PCT/CN2022/079248 2021-04-02 2022-03-04 Variable focus optical device, lens, and camera module WO2022206280A1 (en)

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