WO2022068421A1 - Lens fixing structure for optical actuator and corresponding camera module - Google Patents
Lens fixing structure for optical actuator and corresponding camera module Download PDFInfo
- Publication number
- WO2022068421A1 WO2022068421A1 PCT/CN2021/112457 CN2021112457W WO2022068421A1 WO 2022068421 A1 WO2022068421 A1 WO 2022068421A1 CN 2021112457 W CN2021112457 W CN 2021112457W WO 2022068421 A1 WO2022068421 A1 WO 2022068421A1
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- WIPO (PCT)
- Prior art keywords
- lens
- lens barrel
- fixing structure
- carrier
- arc
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
- G02B23/08—Periscopes
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- 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
-
- 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
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- 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
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
Definitions
- the present invention relates to the field of optical technology, and in particular, the present invention relates to a camera module and an assembling method thereof.
- Optical actuators can also be referred to as motors.
- various types of motors are usually used for focus driving and anti-shake driving. Regardless of whether it is a focus drive or an anti-shake drive, each drive module often needs to move the lens module (eg, an optical lens) in a preset moving direction.
- the motor may include a housing and a carrier, and the carrier and the housing are movably connected.
- the optical lens can be mounted on the carrier, and under the action of a driving module (such as a coil-magnet combination), the carrier carrying the optical lens can move relative to the housing in a preset degree of freedom, so as to achieve focusing, anti-shake or optical zoom, etc.
- the usual fixing method between the carrier and the lens is the fixing method of screw thread and glue dispensing, or only the glue dispensing method.
- glue is used between the carrier and the lens, in the process of the glue changing from a flexible wet state to a tough, hard solid state, its cohesive strength properties will change greatly (the magnitude of which is about several thousand N/cm2), resulting in a relatively obvious internal stress of the glue.
- the glue will shrink. The shrinkage of the glue is different from the shrinkage of the bonding part of the lens barrel.
- the shrinkage of the glue will produce a pulling force on the lens, which will cause a certain stress inside the lens, so that the The surface shape of the lens inside the lens is deformed or the position is shifted, which affects the imaging quality of the periscope module.
- the glue curing process in the assembly process of the periscope camera module often requires the module to be baked and cooled. During the baking and cooling process, the thermal expansion coefficient between the lens barrel of the lens and the glue is different.
- the lens barrel of the lens and the glue will have different shrinkage amounts, so that a certain stress will be generated inside the lens, which will affect the surface shape of the lens in the lens, making the periscope type The image quality of the module is degraded.
- the periscope telephoto camera module when the weight of the lens that the motor needs to carry is relatively large, for example, the periscope telephoto camera module often requires a relatively heavy lens, and for example, the use of a large-image sensor chip increases the weight of the lens accordingly, etc. , To fix the heavy lens and the motor carrier, the amount of glue used is often larger, so that the shrinkage or expansion of the glue will have a greater negative impact on the imaging quality of the lens.
- the current periscope camera module usually adopts a horizontal assembly method, that is, the prism module, the lens module, and the photosensitive module are arranged in a horizontal direction, and these modules are installed on the bottom plate of the module housing.
- the module housing often needs to be integrally formed with the bottom plate or four side walls connected to the bottom plate. Therefore, in order to facilitate assembly, the motor carrier often does not adopt a closed structure.
- the traditional motor carrier is usually cylindrical, and its axis is generally vertical during assembly, so that the optical lens can be loaded into the carrier from the opening on the end face of the motor carrier.
- the two end faces of the motor carrier face to the two sides respectively.
- the top side of the carrier often has an opening so that the lens can be loaded from the top of the carrier.
- the peripheral side of the carrier is not closed, the stress caused by the shrinkage or expansion of the glue when the carrier is fixed to the lens will be more uneven. Therefore, for the periscope camera module, the negative impact on the image quality caused by fixing the carrier and the lens with glue may be more obvious.
- the market expects a lens fixing structure for an optical actuator and a corresponding camera module with many advantages such as high imaging quality, miniaturization of modules, and easy assembly.
- the purpose of the present invention is to overcome the deficiencies of the prior art and provide a solution for a lens fixing structure for an optical actuator and a corresponding camera module that can improve imaging quality, be easy to assemble, and contribute to device miniaturization .
- the present invention provides a lens fixing structure for an optical actuator, which includes: a carrier, which is suitable for controlled movement under the driving of the optical actuator; a lens barrel , the inner side of which is suitable for installing lenses; and an elastic member, which includes a fixing part for connecting the lens barrel and a connecting part for connecting the carrier; wherein, the fixing part includes two arc-shaped side walls, The two arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, or are respectively embedded in the lens barrel.
- the fixing part further includes a planar bottom wall, the two arc-shaped side walls are connected with the bottom wall as a whole, and the two arc-shaped side walls are respectively supported against the two sides of the lens barrel. the outer side of the side to fasten the lens barrel between the two arc-shaped side walls and the bottom wall.
- the bottom end of the arc-shaped side wall is connected with the bottom wall, and the top end is bent to the outside and extends downward to form the connecting portion.
- the connecting portion is an arc-shaped single arm, or a U-shape, or a serpentine shape formed by a plurality of U-shapes.
- the fixing portion is embedded in the side wall of the lens barrel through an insert injection molding process.
- the position of the top end of the fixing part is higher than the position of the central axis of the lens barrel.
- the top of the fixing part has an opening, and the width of the opening is smaller than the diameter of the outer contour of the lens barrel.
- the two arc-shaped side walls are separated and embedded on both sides of the lens barrel respectively.
- the two arc-shaped side walls are separated, the two arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, and the bottom ends of the two arc-shaped side walls are respectively connected with the
- the lens barrel is connected by a snap-fit structure.
- the top end of the arc-shaped side wall is bent to the outside and extends downward to form the connecting portion, and the bottom end of the connecting portion is connected with the inner side surface of the carrier through a buckle structure.
- the top end of the arc-shaped side wall is bent to the outside and extends downward to form the connecting portion, and the bottom end of the connecting portion is bonded with the inner side surface of the carrier.
- connection between the bottom end of the connecting portion and the inner side of the carrier is reinforced by glue.
- the buckle structure is a male buckle and a female buckle.
- the connecting part has an end connecting piece
- the inner side of the carrier has a T-shaped protrusion
- the T-shaped protrusion includes a neck and an end with a width greater than that of the neck
- the end connecting The part is provided with an opening, and the shape of the opening matches the shape of the neck of the T-shaped protrusion.
- the connecting part has an end connecting piece, and the end connecting piece has a T-shaped protrusion, and the T-shaped protrusion includes a neck and an end with a width larger than that of the neck;
- the inner part of the carrier is The side has a groove, and the shape of the neck of the T-shaped protrusion matches the shape of the groove.
- the end of the T-shaped protrusion has an inclined slope, and the slope angle ⁇ of the slope satisfies 90° ⁇ 180°.
- a camera module with a casing and an optical path turning assembly, a lens assembly and a photosensitive assembly installed in the casing; the lens assembly includes any of the foregoing for optical actuation The lens fixing structure of the device.
- the lens barrel includes at least one adaptation section for installing the elastic member, and the diameter of the lenses installed in the adaptation section is smaller than The diameter of the lens mounted on the other sections of the barrel.
- the lens barrel includes at least one adaptation section for installing the elastic member, and the optical sensitivity of the lenses installed in the adaptation section is higher than the optical sensitivity of the lenses mounted on other sections of the barrel.
- the top side of the carrier is open; a plurality of lenses are installed in the lens barrel, wherein the outer contour of at least one lens is in the shape of a cut circle, and one cut edge of the lens whose outer contour is in the shape of a cut circle is located on the top side .
- an elastic member is arranged between the lens barrel and the carrier, so that the lens barrel can be uniformly stressed on both sides while being fixed, avoiding the problem of uneven stress caused by glue bonding.
- the top of the elastic member has an opening, which facilitates the installation and snapping of the lens barrel, and helps to improve production efficiency and production yield.
- the elastic member can be arranged at the end of the lens with higher sensitivity, and the influence of the glue stress on the highly sensitive lens can be offset by the elastic member, so as to better ensure the imaging effect.
- the elastic member can be arranged at the end of the lens with a smaller size, so that the gap between the lens and the carrier can be fully utilized, the space utilization rate of the camera module can be improved, and the structure of the module can be more compact.
- the elastic members can be arranged on the side walls of the lens barrel and the motor carrier, so as to avoid occupying space in the height direction of the periscope module.
- FIG. 1 shows a schematic three-dimensional appearance of a periscope camera module in an embodiment of the present application
- FIG. 2 shows a schematic cross-sectional view of a periscope camera module in an embodiment of the present application
- Figure 3 shows a lens with a cut edge
- FIG. 4 shows a schematic cross-sectional view of a lens fixing structure in an embodiment of the present application
- FIG. 5 shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in an embodiment of the present application
- FIG. 6a shows a schematic cross-sectional view of a lens fixing structure in another embodiment of the present application.
- Fig. 6b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in another embodiment of the present application
- FIG. 7a shows a schematic cross-sectional view of a lens fixing structure in yet another embodiment of the present application.
- Fig. 7b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in yet another embodiment of the present application
- FIG. 8a shows a schematic cross-sectional view of a lens fixing structure in still another embodiment of the present application.
- Fig. 8b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in still another embodiment of the present application
- FIG. 9 shows a schematic perspective view of a lens fixing structure in an embodiment of the present application.
- FIG. 10 shows a schematic cross-sectional view of a lens fixing structure in a modified embodiment of the present application
- FIG. 11 shows a schematic cross-sectional view of a lens fixing structure in another modified embodiment of the present application.
- FIG. 12 shows a schematic cross-sectional view of a lens fixing structure in yet another modified embodiment of the present application.
- a periscope camera module with an optical actuator adopts a shrapnel-based lens fixing structure, thereby avoiding the use of glue between the lens and the carrier. Defects caused by bonding.
- FIG. 1 shows a schematic three-dimensional appearance of a periscope camera module in an embodiment of the present application
- FIG. 2 illustrates a cross-sectional schematic diagram of the periscope camera module in an embodiment of the present application.
- the periscope camera module includes an optical path turning assembly 10, a lens assembly 20 and a photosensitive assembly 30, and the optical path turning assembly 10 is located at the front end of the periscope camera module (ie close to the object side) to reflect the incident light of the object and change the propagation direction of the light.
- the lens assembly 20 is located between the optical path inflection assembly 10 and the photosensitive assembly 30. The light emitted from the optical path inversion assembly 10 passes through the lens assembly 20 and reaches the photosensitive assembly 30, and is imaged by the photosensitive assembly 30.
- the lens assembly 20 includes a lens 21 (ie, an optical lens) and a motor mechanism 22.
- the motor mechanism 22 includes a motor carrier 23, and the motor carrier 23 can be relative to the motor housing ( The motor housing may be, for example, part of the periscope camera module housing 40) to move.
- the lens 21 is fixed to the motor carrier. Driven by the motor carrier 23, the lens 21 can move relative to the motor housing along with the motor carrier 23, thereby realizing optical focusing and/or optical anti-shake. Further, the motor mechanism 22 can also be used to realize the optical zoom function.
- a lens fixing structure based on an elastic member is proposed to fix the lens 21 to the motor carrier 23 , thereby avoiding the defect caused by using glue to fix the lens 21 and the motor carrier 23 .
- the lens includes a lens (usually a lens) and a lens barrel.
- the lens includes at least two lenses arranged along the optical axis, the number of the lenses can be changed according to the optical design, and the lens barrel can accommodate a plurality of lenses along the optical axis.
- an elastic member is used to fix the lens in the motor carrier.
- the motor carrier is sometimes referred to as a carrier for short hereinafter, and the combined structure formed by the carrier, the elastic sheet and the lens barrel is regarded as the lens fixing structure.
- the carrier may have a cylindrical shape with one side open.
- the cross section of the carrier (referring to the cross section perpendicular to the axis of the carrier) may be U-shaped with the opening side facing upward. That is, when the axis of the carrier is in a horizontal state, the top side of the carrier has an opening.
- the lens barrel can be put into the carrier from the top side of the carrier, and the position of the lens can be adjusted based on the measured imaging result of the photosensitive component during the placement process, so that the periscope camera module can reach the preset imaging quality index.
- the motor mechanism described in this application can be a VCM motor (which usually provides a driving force by a combination of coil magnets, VCM is the English abbreviation of voice coil motor), an SMA motor (which provides driving force through SMA elements, SMA is a shape The English abbreviation of memory alloy), or MEMS motor (MEMS is the English abbreviation of Micro-Electro-Mechanical System), etc.
- VCM voice coil motor
- SMA which provides driving force through SMA elements
- SMA is a shape The English abbreviation of memory alloy
- MEMS motor MEMS is the English abbreviation of Micro-Electro-Mechanical System
- the lens may be a D-cut lens.
- a D-cut lens is to set a cut edge (also called a cut edge) on the lens, so that the outer contour of the lens forms a cut circle.
- Figure 3 shows a lens with a cut edge.
- lenses with cut edges are referred to as D-cut lenses.
- D-cut lenses include at least one chord edge and at least one arc edge. The chord edge and the arc edge are adjacent, and the curvature of the chord edge and the arc edge are different, the curvature of the chord edge is 0, it is a straight line segment, and the curvature of the arc edge > 0, it is an arc line segment.
- the outer contour of the lens consists of a chord edge and an arc edge
- its shape is similar to the letter "D"
- D-cut lenses are not limited to the shape of the letter "D”.
- the D-cut lens may have two parallel cut edges 21a, and at this time, its outer contour is composed of two chord edges and two arc edges.
- the cut edge 21a is only located in the non-optical area of the lens to avoid affecting the optical area of the lens.
- the D-cut lens includes two chord edges and two round edges, so that the D-cut lens has symmetry, so that when the D-cut lens is molded (such as injection molding), the internal stress generated by the lens is relatively uniform .
- the shrinkage of the material itself during the curing and molding of the liquid material will be relatively more uniform, and the surface accuracy of the lens can be improved to a certain extent (compared to asymmetric D-cut lenses).
- at least a cut edge can also be provided on the lens barrel, and the position of the cut edge of the D-cut lens matches the position of the cut edge of the lens barrel, and the lens is assembled into the lens barrel.
- the D-cut lens can be molded by injection molding, wherein the cut edge can be directly molded into a D-cut shape (ie, a circular shape) by setting the shape of the mold; The cutting method realizes the setting of cutting edge.
- the cut edge of the lens can be placed on the top side.
- the two parallel cut edges can be placed on the top and bottom sides, respectively.
- the horizontal assembly here means that the optical path turning assembly 10 , the lens assembly 20 and the photosensitive assembly 30 are arranged in a horizontal direction during assembly (ie, horizontally arranged, please refer to FIG. 2 ).
- the amount of shrinkage is different, so it will cause uneven stress inside the lens, which will squeeze the lens in the lens barrel, which will change the surface shape of the lens and affect the imaging effect; in addition, the baking of the camera module During the cooling process, the thermal expansion coefficient between the lens barrel of the lens and the glue does not match (different), resulting in different shrinkage between the lens barrel and the glue, which will also cause uneven stress inside the lens. Affects the surface shape of the lens in the lens and reduces the image quality. In a conventional lens, the uneven stress in the lens will cause the surface shape of the lens to change, becoming larger or smaller; while in a D-cut lens, because the lens barrel and the lens have cut edges, the stress of the glue will make the lens inside the lens. The stress is not uniform, and since the distance between the lens barrel at the cut edge and the optical zone of the lens is shorter, the stress of the glue at the cut edge will have a greater impact on the lens, making the lens more prone to deformation.
- an elastic member is arranged between the lens barrel and the motor carrier, thereby forming a lens fixing structure.
- the elastic member is arranged between the lens barrel and the motor carrier for supporting and fixing the lens.
- one end of the elastic member is fixed to the lens barrel by means of buckling or molding, and the other end is fixed to the motor carrier by means of sticking or buckling.
- the elastic member has a certain pre-tightening force between the lens barrel and the motor carrier, and the pre-tightening force increases the frictional force between the lens and the motor, thereby preventing the lens from shaking at will.
- the pre-tightening force means that the elastic member has a certain load in the installed state, which is used to eliminate the abnormal noise and shaking of the mechanical mechanism.
- FIG. 4 shows a schematic cross-sectional view of a lens fixing structure in an embodiment of the present application.
- the lens fixing structure includes a lens barrel 51 , a carrier 52 , and an elastic member 53 connecting the lens barrel 52 and the carrier 52 .
- the elastic member 53 includes a fixing portion 531 for fixing the lens barrel and a connecting portion 532 for connecting the carrier 52 .
- the outline of the fixing portion 531 is U-shaped, and the interior of the U-shaped fixing portion 531 forms a accommodating cavity, and the top of the accommodating cavity has an opening (that is, the opening direction of the fixing portion 531 is the same as the opening direction of the motor carrier 52 ), so that The lens barrel 51 is loaded into the accommodating cavity from the top.
- the position of the lens can be adjusted according to the actual imaging results, thereby improving the imaging quality.
- the shape of the bearing surface 531a of the elastic member 53 may be consistent with the outer surface of the lens barrel 51 , that is, the fixing portion 531 of the elastic member 53 may include a planar bottom wall 533 and two arcuate side walls 534 .
- the two arc-shaped side walls 534 may have a preload to clamp the lens barrel 51 from both sides.
- the lens is inserted into the accommodating cavity from the opening of the fixing portion 531.
- the lens first squeezes the two arc-shaped side walls 534 of the elastic member 53 outward to make the opening larger, and then After the lens is installed in the accommodating cavity, the two arc-shaped side walls 534 rebound inward under the action of the elastic force, and the opening is reduced, so that the lens barrel 51 (that is, the entire lens) is buckled in the fixing portion 531 of the elastic member 53 . Since the curved side walls 534 on both sides of the elastic member 53 are symmetrically arranged, the elastic member 53 can provide a stable and appropriate elastic force to clamp and fix the lens, so that the lens will not fall off when the camera module is shaken, and also Guarantee the shooting quality and shooting effect.
- the size of the opening of the fixing portion of the elastic member is smaller than the outer diameter of the lens barrel, that is, the height of the fixing portion is higher than the optical axis of the lens, and the light The axis is in a horizontal posture.
- the position of the central axis of the lens barrel can be regarded as the position of the optical axis of the lens.
- one end of the connecting portion 532 of the elastic member 53 is connected to the fixing portion 531 , and the other end is connected to the inner side surface of the motor carrier 52 .
- the connecting portion 532 and the fixing portion 531 may be integrally formed, and the top end of the arc-shaped side wall 534 of the fixing portion 531 is bent outward (here, outward refers to the direction away from the lens barrel), and then extends downward to form
- the connecting part 532, one end of the connecting part 432 connected with the motor carrier 52 may have an end connector, so as to fix the elastic member 53 and the motor carrier 52 through a snap structure, so that the elastic member 53 and the motor carrier 52 are fixed be more solid.
- connection between the elastic member 53 and the motor carrier 52 is disposed on the side wall of the motor carrier 52 , so as not to occupy the space of the periscope camera module in the height direction, thereby preventing the height of the periscope camera module from increasing.
- the connecting portion 532 of the elastic member 53 may be in a single-arm arc shape as shown in FIG.
- the connecting portion can also be U-shaped, that is, the connecting portion has two arms and a bending section between the two arms, and the arc-shaped side walls on both sides of the fixing portion are connected to one of the two arms. A U-shaped connection.
- the connecting portion may also be a serpentine shape composed of a plurality of U shapes, that is, the connecting portion has a plurality of arc-shaped arms and a plurality of bending segments connecting the arc-shaped arms, the The curved sidewalls on both sides of the fixed portion are connected with one such serpentine connection portion.
- FIG. 5 shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in an embodiment of the present application.
- a T-shaped protrusion is provided on the inner side wall of the motor carrier 52 , and the T-shaped protrusion can be integrally formed with the motor carrier.
- the T-shaped protrusion has a neck portion 521 and one end portion 522. The size of the neck portion 521 is smaller than that of the end portion 522, so that the end connecting piece of the elastic member 53 will not be locked after being snapped to the T-shaped protrusion of the motor carrier 52. fall off on its own.
- the end of the T-shaped protrusion of the motor carrier may have an inclined inclined surface 522a, and the inclined angle ⁇ of the inclined surface satisfies 90° ⁇ 180°, so as to facilitate the connection between the end part of the elastic member and the T-shaped surface.
- Type raised snap At the position corresponding to the T-shaped protrusion on the motor carrier, the end connector of the elastic member 53 is provided with an opening, and the shape of the opening matches the shape of the T-shaped protrusion neck 521, so that the T-shaped protrusion can extend. into the opening, and the motor carrier 52 and the elastic member 53 are fixed by the buckle structure.
- the number of the buckle structures at the connection between the motor carrier 52 and the elastic member 53 may be one or multiple, and the number of the buckle structures is not limited in the present application.
- FIG. 6a shows a schematic cross-sectional view of a lens fixing structure in another embodiment of the present application.
- Fig. 6b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in another embodiment of the present application.
- a groove 57 is provided on the inner side wall of the motor carrier 52, and a T-shaped protrusion is provided on the end connecting piece of the elastic member 53, and the T-shaped protrusion is connected to the elastic member.
- the connecting portion 532 of 53 may be integrally formed.
- the size of the neck portion 55 of the T-shaped protrusion is smaller than the size of the end portion 56 , so that the end connecting piece of the elastic member will not fall off by itself after being snapped into the groove 57 of the motor carrier 52 .
- the end portion 56 of the T-shaped protrusion has an inclined inclined surface, and the inclined angle ⁇ of the inclined surface satisfies 90° ⁇ 180°, so as to facilitate the T-shaped protrusion of the end connecting piece of the elastic member and the groove of the motor carrier. combine.
- the position of the T-shaped protrusion is opposite to the position of the groove, and the shape of the neck of the T-shaped protrusion matches the shape of the groove.
- FIG. 7a shows a schematic cross-sectional view of a lens fixing structure in yet another embodiment of the present application.
- Fig. 7b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in another embodiment of the present application.
- the end connector of the elastic member 53 can also be fixed to the inner side wall of the motor carrier 52 by means of pasting, elastic
- glue is applied between the member 53 and the motor carrier 52, the stress generated by the curing of the glue will be offset by the elastic member and cannot be transmitted to the lens, so it will not affect the stress of the lens, thereby ensuring the imaging quality of the lens.
- FIG. 8a shows a schematic cross-sectional view of a lens fixing structure in still another embodiment of the present application.
- Fig. 8b shows a partial enlarged schematic view of the snap connection between the motor carrier and the elastic member in still another embodiment of the present application.
- the buckle structure between the elastic member 53 and the motor carrier 52 can also be configured to be buckled by a male buckle and a female .
- a female buckle may be arranged on the end connecting piece of the elastic member
- a male buckle may be arranged on the inner side wall of the motor carrier.
- the position of the male buckle and the female buckle is opposite.
- the component is fixed to the motor carrier.
- the positions of the male buckle and the female buckle can be exchanged, that is, a male buckle is arranged on the end connecting piece of the elastic member, and a female buckle is arranged on the inner side wall of the motor carrier.
- the structure of the elastic member and the way of engaging the elastic member, the lens and the motor carrier are not limited to the methods described in the above embodiments, as long as the elastic member can achieve its function and be fixed between the lens and the motor carrier. .
- FIG. 9 shows a schematic perspective view of a lens fixing structure in an embodiment of the present application.
- the optical axis of the lens 21 is in the same direction as the Y axis, and is in a horizontal posture. It is assumed that the length of the lens 21 (in conjunction with reference to FIG. 2 ) is L in the optical axis direction.
- the length (dimension in the optical axis direction) of the elastic member (the elastic member is blocked in FIG. 9 and thus not directly shown) is not greater than the length L of the lens 21 . That is to say, the length of the elastic member may exactly match (substantially the same as) the length of the lens 21 , or may be smaller than the length of the lens 21 .
- the lens 21 includes a plurality of lenses. According to the different radial dimensions of the lenses, the radial dimensions of different segments of the lens (the radial direction refers to the direction perpendicular to the optical axis) may also be different. For example, in FIG. 9 , the radial dimension of the middle section 21b of the lens 21 is smaller than the radial dimension of the front section 21a (the section close to the object side) and larger than the rear section 21c (the end close to the image side). segment) radial dimension.
- the elastic member may be disposed on the middle section 21b of the lens 21 .
- the length of the elastic member (ie, the dimension in the Y-axis direction) may be adapted to the length of the middle section 21b of the lens. Since the elastic member is arranged in the middle section 21b of the lens, it also helps to balance the front and rear weight of the lens, and enhances the firmness of the lens fixing structure. Further, in this embodiment, in the elastic member, the length of the fixing portion (referring to the dimension in the Y-axis direction) and the length of the connecting portion (referring to the dimension in the Y-axis direction) may be substantially the same.
- the elastic member may also be provided at an end section of the lens (eg a front end region or a rear end section).
- the elastic member is disposed at the end of the lens with higher optical sensitivity (hereinafter referred to as sensitivity), and the higher the sensitivity of the lens, that is, the greater the impact on the imaging effect when the lens changes. Disposing an elastic member at the end of the lens with high sensitivity and eliminating the glue can avoid the influence of the stress on the surface shape of the high-sensitivity lens when the glue is cured, so as to better ensure the imaging quality.
- the elastic member is disposed at the end of the lens barrel with a smaller radial dimension (eg, the rear end section of the lens barrel).
- a smaller radial dimension eg, the rear end section of the lens barrel.
- the elastic member may be a spring, an elastic sheet or other elastic elements.
- a method for assembling the lens fixing structure comprising: putting the lens into the accommodating cavity of the elastic member by pressing, and fixing the lens by the elastic member
- the lens is fixed by the part; the semi-finished product composed of the lens and the elastic member is put into the motor carrier, and the end connector of the elastic member is engaged with the fastener of the motor carrier, and the buckle structure between the elastic member and the motor carrier is used.
- glue can be further added to the buckle structure to reinforce the buckle connection and prevent the elastic member from falling off.
- the elastic member will deform to a certain extent under the pressing force of the lens, but after the assembly is completed, the elastic member will basically return to its original shape through elastic force.
- the optical path turning assembly 10 may include a reflective element 11 and a reflective element carrier 12, and the reflective element 11 for mirrors or prisms.
- the reflection element 11 is suitable for turning the light entering the camera module from the light window 13 vertically by 90°, and turning the optical axis in the vertical direction of the incident end of the reflection element 11 to the horizontal direction of the outgoing end.
- the reflective element 11 can bear against the reflective element carrier 12 .
- the optical path turning assembly 10 may further include a driving element 14, the driving element 14 is disposed on the reflective element carrier 12 to drive the reflective element 11 to rotate or translate, so as to realize the optical image stabilization of the periscope camera module .
- the photosensitive component 30 includes a filter element 31 and a photosensitive element 32
- the filter element 31 includes a filter element 31 .
- the photosensitive element 32 includes a photosensitive chip 32a and a circuit board 32b.
- the photosensitive chip 32a is mounted on the surface of the circuit board 32b. 33b fit.
- the optical path turning assembly, the lens assembly and the photosensitive assembly are firstly calibrated and then fixed during the assembly process to ensure that the deviation between the optical axis of the lens and the center position of the photosensitive element is within the predetermined range.
- the active calibration refers to adjusting the relative positions of the optical path turning component, the lens component and the photosensitive component according to the measured imaging results of the photosensitive component, so as to obtain an optical system with the imaging quality up to the standard.
- the assembly can be performed based on the results of the active calibration, so that the relative positions between the optical path turning component, the lens component and the photosensitive component are maintained at the relative positions determined by the active calibration.
- the housing 40 of the periscope camera module includes a base 41 and a cover 42, the cover 42 has a window, and the window can be used as a periscope camera module
- the group of light entrances ie the light window 13
- the cover body is fixed with the base, and the space between the cover body 42 and the base 41 forms a cavity for accommodating the optical path turning assembly 10 , the lens assembly 20 and the photosensitive assembly 30 .
- the optical path turning assembly 10 and the lens assembly 20 may be fixed on the same base 41, or may be respectively fixed on two separate bases.
- the base includes a first base and a second base that are separated from each other, the second base supports a lens assembly and a photosensitive assembly, and the first base supports an optical path turning assembly.
- FIG. 10 shows a schematic cross-sectional view of the lens fixing structure in a modified embodiment of the present application.
- the fixing portion of the elastic member 53 can be directly embedded in the lens barrel 51 .
- the fixing portion 531 of the elastic member 53 can be embedded during the molding process of the lens barrel 51 through an insert injection molding process. Since the lens barrel 51 and the fixing portion 531 of the elastic member 53 are integrally formed, the two can be firmly connected and fixed.
- the shape of the fixing portion 531 in this embodiment may be similar to the fixing portion shown in FIG. 4 . That is, the fixing portion may also include a planar bottom wall and two arcuate side walls.
- FIG. 11 shows a schematic cross-sectional view of the lens fixing structure in another modified embodiment of the present application.
- the fixing portion 531 of the elastic member 53 can be directly embedded in the lens barrel 51 .
- the embedding method may be similar to the previous embodiment shown in FIG. 10 .
- the fixing portion may only include two arcuate side walls 534, and the planar bottom wall may be eliminated.
- the elastic member 53 may include Two separate sub-components, each of which includes an arcuate side wall 534 and a connecting portion 532 connected thereto.
- the arc-shaped side wall 534 of each sub-component is respectively embedded in one side wall of the lens barrel 51 (eg, the left side wall or the right side wall of the lens barrel).
- FIG. 12 shows a schematic cross-sectional view of the lens fixing structure in yet another modified embodiment of the present application.
- the fixing portion of the elastic member may only include two arc-shaped side walls 534 , and each arc-shaped side wall 534 has an arc suitable for bearing against the outer surface of the lens barrel 51 . Shape bearing surface.
- the end of each arc-shaped side wall 534 is connected with the lens barrel 51 through a buckle structure. Specifically, the position of the free end of the arc-shaped side wall 534 is lower, and the position of the end connected to the connecting portion 532 is higher.
- the free end of the arc-shaped side wall 534 can be provided with a buckle structure or a structure adapted to the buckle, so as to be connected with the outer side surface of the lens barrel 51 .
- the connecting end of the arc-shaped side wall 534 is bent outward and then extends downward to form the connecting portion 532.
- the connecting portion 532 is in the shape of a single-arm arc, and the free end of the connecting portion 532 also passes through The snap structure is connected with the inner side of the carrier 52 .
- the snap connection can also be replaced by a glue connection, or the snap connection can be reinforced with glue.
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Abstract
A lens fixing structure for an optical actuator, comprising: a carrier (52), which is suitable for performing controlled movement under the drive of the optical actuator; a lens barrel (51) the inner side of which is suitable for mounting lenses; and an elastic member (53), which comprises a fixing part (531) for connecting the lens barrel (51) and a connecting part (532) for connecting the carrier (52), wherein the fixing part (531) comprises two arc-shaped side walls (534), and the two arc-shaped side walls (534) bear against the outer side surfaces at two sides of the lens barrel (51) respectively, or are respectively embedded in the lens barrel (51). The present application also relates to a camera module that comprises the lens fixing structure. The elastic member (53) is arranged between the lens barrel (51) and the carrier (52), so that while the lens barrel (51) is fixed, stress uniformity can be achieved at two sides, thus avoiding problems caused by uneven stress caused by glue bonding, and helping to increase production efficiency and yield.
Description
相关申请Related applications
本申请要求名称为“用于光学致动器的镜头固定结构及相应的摄像模组”、于2020年9月29日提交的中国专利申请号为202011050011.2的优先权,并在此通过引用包括上述申请的全部内容。This application claims the priority of the Chinese Patent Application No. 202011050011.2, entitled "Lens Fixing Structure for Optical Actuator and Corresponding Camera Module", filed on September 29, 2020, which is incorporated herein by reference. the full content of the application.
本发明涉及光学技术领域,具体地说,本发明涉及摄像模组及其组装方法。The present invention relates to the field of optical technology, and in particular, the present invention relates to a camera module and an assembling method thereof.
随着消费者对于手机拍照需求的增加,手机摄像头(即摄像模组)的功能越来越丰富,人像拍摄、远距拍摄、光学变焦、光学防抖等功能都集成在了体积有限的摄像头中,而其中自动对焦、光学防抖、光学变焦等功能往往都需要依靠光学致动器来实现。With the increasing demand of consumers for mobile phone photography, the functions of mobile phone cameras (ie camera modules) are becoming more and more abundant, and functions such as portrait shooting, telephoto shooting, optical zoom, and optical image stabilization are integrated into the limited-volume camera. , and autofocus, optical image stabilization, optical zoom and other functions often need to rely on optical actuators to achieve.
光学致动器也可以称为马达。当前手机、平板电脑等轻薄移动电子终端设备中,通常采用各类马达进行对焦驱动和防抖驱动。不论是对焦驱动还是防抖驱动,每个驱动模块往往需要在预先设定的移动方向上来移动镜头模块(例如光学镜头)。具体地,马达可以包括一壳体和一载体,载体与壳体之间可活动连接。其中光学镜头可以安装于所述载体,在驱动模块(例如线圈磁铁组合)的作用下,携带光学镜头的载体可以在预设的自由度上相对于壳体移动,从而实现对焦、防抖或光学变焦等功能。现有技术中,载体与镜头之间通常的固定方式是采用螺纹加点胶的固定方式,或者是只采用点胶的方式固定。当载体与镜头之间采用胶水粘接时,在胶水从柔性的未干状态变成韧性的、硬的固体状态的过程中,其内聚强度性质会发生大幅度的变化(其幅度约几千N/cm2),导致出现较为明显的胶水内应力。一方面,在胶水固化的过程中,胶水会收缩,胶水的收缩量与镜筒粘接部位的收缩量不同,因此胶水的收缩会对镜头产生一拉力,使镜头内部产生一定的应力,使得位于镜头内部的镜片的面型变形或者位置偏移,从而影响到潜望式模组的成像品质。另一方面,在潜望式摄像模组组装过程的胶水固化工艺往往需要对该模组进行烘烤和冷却,在烘烤和冷却过程中,由于镜头的镜筒与胶水之间的热膨胀系数不匹配(即二者热膨胀系数不 同),镜头的镜筒与胶水之间会产生不同的收缩量,从而使镜头内部产生一定的应力,该应力对镜头中的镜片面型造成影响,使潜望式模组的成像品质下降。Optical actuators can also be referred to as motors. In the current thin and light mobile electronic terminal devices such as mobile phones and tablet computers, various types of motors are usually used for focus driving and anti-shake driving. Regardless of whether it is a focus drive or an anti-shake drive, each drive module often needs to move the lens module (eg, an optical lens) in a preset moving direction. Specifically, the motor may include a housing and a carrier, and the carrier and the housing are movably connected. The optical lens can be mounted on the carrier, and under the action of a driving module (such as a coil-magnet combination), the carrier carrying the optical lens can move relative to the housing in a preset degree of freedom, so as to achieve focusing, anti-shake or optical zoom, etc. In the prior art, the usual fixing method between the carrier and the lens is the fixing method of screw thread and glue dispensing, or only the glue dispensing method. When glue is used between the carrier and the lens, in the process of the glue changing from a flexible wet state to a tough, hard solid state, its cohesive strength properties will change greatly (the magnitude of which is about several thousand N/cm2), resulting in a relatively obvious internal stress of the glue. On the one hand, during the curing process of the glue, the glue will shrink. The shrinkage of the glue is different from the shrinkage of the bonding part of the lens barrel. Therefore, the shrinkage of the glue will produce a pulling force on the lens, which will cause a certain stress inside the lens, so that the The surface shape of the lens inside the lens is deformed or the position is shifted, which affects the imaging quality of the periscope module. On the other hand, the glue curing process in the assembly process of the periscope camera module often requires the module to be baked and cooled. During the baking and cooling process, the thermal expansion coefficient between the lens barrel of the lens and the glue is different. Matching (that is, the thermal expansion coefficients of the two are different), the lens barrel of the lens and the glue will have different shrinkage amounts, so that a certain stress will be generated inside the lens, which will affect the surface shape of the lens in the lens, making the periscope type The image quality of the module is degraded.
进步一地,马达所需搭载的镜头重量较大时,例如潜望式长焦摄像模组往往需要较大重量的镜头,再例如采用大像面感光芯片而使镜头重量相应地增加等等情形,要将大重量镜头与马达载体固定,往往使用的胶水量也较大,从而使得胶水收缩或膨胀对镜头的成像品质造成更大的负面影响。On the other hand, when the weight of the lens that the motor needs to carry is relatively large, for example, the periscope telephoto camera module often requires a relatively heavy lens, and for example, the use of a large-image sensor chip increases the weight of the lens accordingly, etc. , To fix the heavy lens and the motor carrier, the amount of glue used is often larger, so that the shrinkage or expansion of the glue will have a greater negative impact on the imaging quality of the lens.
再者,目前潜望式摄像模组通常采用卧式组装方式,即棱镜模块、镜头模块、感光模块沿着水平方向布置,并将这些模块安装于模组壳体的底板。而模组壳体往往还需要与底板一体成型或者与底板连接的四个侧壁,因此为便于组装,马达载体往往不采用封闭式结构。传统的马达载体通常呈圆筒状,在组装时其轴线一般呈竖直状态,这样光学镜头可以从马达载体端面的开口处装入该载体内部。而对于卧式组装的潜望式模组,马达载体的两个端面分别朝向两侧,如果镜头仍然从其端面装入,则容易受到其他模块或者模组壳体的侧壁的干涉。因此,对于潜望式摄像模组,其载体的顶侧往往具有开口,以便镜头可以从载体的顶部装入。然而,由于载体的周侧是不封闭的,载体与镜头固定时胶水的收缩或膨胀所带来的应力将更加不均匀。因此,对于潜望式摄像模组,载体与镜头采用胶水进行固定对成像品质所造成的负面影响可能会更加明显。Furthermore, the current periscope camera module usually adopts a horizontal assembly method, that is, the prism module, the lens module, and the photosensitive module are arranged in a horizontal direction, and these modules are installed on the bottom plate of the module housing. The module housing often needs to be integrally formed with the bottom plate or four side walls connected to the bottom plate. Therefore, in order to facilitate assembly, the motor carrier often does not adopt a closed structure. The traditional motor carrier is usually cylindrical, and its axis is generally vertical during assembly, so that the optical lens can be loaded into the carrier from the opening on the end face of the motor carrier. For the periscope module assembled horizontally, the two end faces of the motor carrier face to the two sides respectively. If the lens is still installed from its end face, it will be easily interfered by other modules or the side walls of the module housing. Therefore, for the periscope camera module, the top side of the carrier often has an opening so that the lens can be loaded from the top of the carrier. However, since the peripheral side of the carrier is not closed, the stress caused by the shrinkage or expansion of the glue when the carrier is fixed to the lens will be more uneven. Therefore, for the periscope camera module, the negative impact on the image quality caused by fixing the carrier and the lens with glue may be more obvious.
总之,市场上期待一种具有高成像品质,有助于模组小型化,易于组装等诸多优势的用于光学致动器的镜头固定结构及相应的摄像模组。In a word, the market expects a lens fixing structure for an optical actuator and a corresponding camera module with many advantages such as high imaging quality, miniaturization of modules, and easy assembly.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于,克服现有技术的不足,提供一种能够提升成像品质、易于组装且有助于器件小型化的用于光学致动器的镜头固定结构及相应的摄像模组的解决方案。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a solution for a lens fixing structure for an optical actuator and a corresponding camera module that can improve imaging quality, be easy to assemble, and contribute to device miniaturization .
为解决上述技术问题,本发明提供了一种一种用于光学致动器的镜头固定结构,其包括:载体,其适于在所述光学致动器的驱动下进行受控移动;镜筒,其内侧面适于安装镜片;以及弹性构件,其包括用于连接所述镜筒的固定部和用于连接所述载体的连接部;其中,所述固定部包括两个弧形侧壁,所述两个弧形侧壁分别承靠于所述镜筒两侧的外侧面,或者分别嵌入所述镜筒。In order to solve the above technical problems, the present invention provides a lens fixing structure for an optical actuator, which includes: a carrier, which is suitable for controlled movement under the driving of the optical actuator; a lens barrel , the inner side of which is suitable for installing lenses; and an elastic member, which includes a fixing part for connecting the lens barrel and a connecting part for connecting the carrier; wherein, the fixing part includes two arc-shaped side walls, The two arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, or are respectively embedded in the lens barrel.
其中,所述固定部还包括一平面状的底壁,所述两个弧形侧壁与所述底壁连接成一个整体,所述两个弧形侧壁分别承靠于所述镜筒两侧的外侧面,以将所述镜筒扣合在所述两个弧形侧壁和所述底壁之间。Wherein, the fixing part further includes a planar bottom wall, the two arc-shaped side walls are connected with the bottom wall as a whole, and the two arc-shaped side walls are respectively supported against the two sides of the lens barrel. the outer side of the side to fasten the lens barrel between the two arc-shaped side walls and the bottom wall.
其中,所述弧形侧壁的底端与所述底壁连接,其顶端向外侧弯折并向下延伸形成所述的连接部。Wherein, the bottom end of the arc-shaped side wall is connected with the bottom wall, and the top end is bent to the outside and extends downward to form the connecting portion.
其中,所述连接部为弧形单臂,或者呈U形,或者呈多个U形所构成的蜿蜒形状。Wherein, the connecting portion is an arc-shaped single arm, or a U-shape, or a serpentine shape formed by a plurality of U-shapes.
其中,所述固定部通过嵌入式注塑工艺嵌入所述镜筒的侧壁中。Wherein, the fixing portion is embedded in the side wall of the lens barrel through an insert injection molding process.
其中,所述固定部的顶端位置高于所述镜筒的中轴位置。Wherein, the position of the top end of the fixing part is higher than the position of the central axis of the lens barrel.
其中,所述固定部的顶端具有开口,且所述开口的宽度小于所述镜筒的外轮廓的直径。Wherein, the top of the fixing part has an opening, and the width of the opening is smaller than the diameter of the outer contour of the lens barrel.
其中,所述两个弧形侧壁分离,并分别嵌入所述镜筒的两侧。Wherein, the two arc-shaped side walls are separated and embedded on both sides of the lens barrel respectively.
其中,所述两个弧形侧壁分离,所述两个弧形侧壁分别承靠于所述镜筒的两侧的外侧面,并且所述两个弧形侧壁的底端分别与所述镜筒通过卡扣结构连接。Wherein, the two arc-shaped side walls are separated, the two arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, and the bottom ends of the two arc-shaped side walls are respectively connected with the The lens barrel is connected by a snap-fit structure.
其中,所述弧形侧壁的顶端向外侧弯折并向下延伸形成所述的连接部,所述连接部的底端与所述载体的内侧面通过卡扣结构连接。Wherein, the top end of the arc-shaped side wall is bent to the outside and extends downward to form the connecting portion, and the bottom end of the connecting portion is connected with the inner side surface of the carrier through a buckle structure.
其中,所述弧形侧壁的顶端向外侧弯折并向下延伸形成所述的连接部,所述连接部的底端与所述载体的内侧面粘结。Wherein, the top end of the arc-shaped side wall is bent to the outside and extends downward to form the connecting portion, and the bottom end of the connecting portion is bonded with the inner side surface of the carrier.
其中,所述连接部的底端与所述载体的内侧面的连接通过胶水补强。Wherein, the connection between the bottom end of the connecting portion and the inner side of the carrier is reinforced by glue.
其中,所述卡扣结构为公卡扣和母卡扣。Wherein, the buckle structure is a male buckle and a female buckle.
其中,所述连接部具有端部连接件,所述载体的内侧面具有T型凸起,所述T型凸起包括一颈部和宽度大于所述颈部的端部;所述端部连接件设置一开孔,所述开孔的形状与所述T型凸起的颈部的形状匹配。Wherein, the connecting part has an end connecting piece, the inner side of the carrier has a T-shaped protrusion, and the T-shaped protrusion includes a neck and an end with a width greater than that of the neck; the end connecting The part is provided with an opening, and the shape of the opening matches the shape of the neck of the T-shaped protrusion.
其中,所述连接部具有端部连接件,所述端部连接件具有T型凸起,所述T型凸起包括一颈部和宽度大于所述颈部的端部;所述载体的内侧面具有一凹槽,所述T型凸起的颈部的形状与所述凹槽的形状匹配。Wherein, the connecting part has an end connecting piece, and the end connecting piece has a T-shaped protrusion, and the T-shaped protrusion includes a neck and an end with a width larger than that of the neck; the inner part of the carrier is The side has a groove, and the shape of the neck of the T-shaped protrusion matches the shape of the groove.
其中,所述T型凸起的端部具有一倾斜的斜面,所述斜面的倾斜角度α满足90°<α<180°。Wherein, the end of the T-shaped protrusion has an inclined slope, and the slope angle α of the slope satisfies 90°<α<180°.
根据本申请的另一方面,还提供了一种摄像模组,其壳体和安装于壳体内的光路转折组件、镜头组件和感光组件;所述镜头组件包括前述任一项用于光学致动器的镜头固定结构。According to another aspect of the present application, there is also provided a camera module with a casing and an optical path turning assembly, a lens assembly and a photosensitive assembly installed in the casing; the lens assembly includes any of the foregoing for optical actuation The lens fixing structure of the device.
其中,所述镜头固定结构中,所述镜筒内安装多个镜片,所述镜筒包括至少一个安装所述弹性构件的适配区段,所述适配区段所安装的镜片的直径小于所述镜筒的其他区段所安装的镜片的直径。Wherein, in the lens fixing structure, a plurality of lenses are installed in the lens barrel, the lens barrel includes at least one adaptation section for installing the elastic member, and the diameter of the lenses installed in the adaptation section is smaller than The diameter of the lens mounted on the other sections of the barrel.
其中,所述镜头固定结构中,所述镜筒内安装多个镜片,所述镜筒包括至少一个安装所述弹性构件的适配区段,所述适配区段所安装的镜片的光学敏感度高于所述镜筒的其他区段所安装的镜片的光学敏感度。Wherein, in the lens fixing structure, a plurality of lenses are installed in the lens barrel, the lens barrel includes at least one adaptation section for installing the elastic member, and the optical sensitivity of the lenses installed in the adaptation section is higher than the optical sensitivity of the lenses mounted on other sections of the barrel.
其中,所述载体的顶侧开口;所述镜筒内安装多个镜片,其中至少一个镜片的外轮廓呈切割圆状,并且外轮廓呈切割圆状的所述镜片的一个切割边位于顶侧。Wherein, the top side of the carrier is open; a plurality of lenses are installed in the lens barrel, wherein the outer contour of at least one lens is in the shape of a cut circle, and one cut edge of the lens whose outer contour is in the shape of a cut circle is located on the top side .
与现有技术相比,本申请具有下列至少一个技术效果:Compared with the prior art, the present application has at least one of the following technical effects:
1.本申请通过在镜筒和载体之间设置弹性构件,使得镜筒在被固定的同时,可以两侧受力均匀,避免了胶水粘结所带来的应力不均而造成的问题。1. In the present application, an elastic member is arranged between the lens barrel and the carrier, so that the lens barrel can be uniformly stressed on both sides while being fixed, avoiding the problem of uneven stress caused by glue bonding.
2.本申请的一些实施例中,所述弹性构件的顶部具有开口,且便于镜筒的安装和扣合,有助于提升生产效率和生产良率。2. In some embodiments of the present application, the top of the elastic member has an opening, which facilitates the installation and snapping of the lens barrel, and helps to improve production efficiency and production yield.
3.本申请的一些实施例中,可以将弹性构件设置于镜片敏感度较高的一端,通过弹性构件抵消胶水应力对高敏感镜片的影响,从而更好地保证成像效果。3. In some embodiments of the present application, the elastic member can be arranged at the end of the lens with higher sensitivity, and the influence of the glue stress on the highly sensitive lens can be offset by the elastic member, so as to better ensure the imaging effect.
4.本申请的一些实施例中,可以将弹性构件设置于镜片尺寸较小的一端,从而可以充分利用镜头与载体之间的间隙,提高摄像模组的空间利用率,使得模组的结构更加紧凑。4. In some embodiments of the present application, the elastic member can be arranged at the end of the lens with a smaller size, so that the gap between the lens and the carrier can be fully utilized, the space utilization rate of the camera module can be improved, and the structure of the module can be more compact.
5.本申请的一些实施例中,对于潜望式模组,可以将其中弹性构件设置于镜筒和马达载体的侧壁,从而避免占用潜望式模组的高度方向上的空间。5. In some embodiments of the present application, for the periscope module, the elastic members can be arranged on the side walls of the lens barrel and the motor carrier, so as to avoid occupying space in the height direction of the periscope module.
图1示出了本申请一个实施例中的潜望式摄像模组的立体外观示意图;FIG. 1 shows a schematic three-dimensional appearance of a periscope camera module in an embodiment of the present application;
图2示出了本申请一个实施例中的潜望式摄像模组的剖面示意图;2 shows a schematic cross-sectional view of a periscope camera module in an embodiment of the present application;
图3示出了一个具有切边的镜片;Figure 3 shows a lens with a cut edge;
图4示出了本申请的一个实施例中的镜头固定结构的剖面示意图;4 shows a schematic cross-sectional view of a lens fixing structure in an embodiment of the present application;
图5示出了本申请一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图;FIG. 5 shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in an embodiment of the present application;
图6a示出了本申请另一个实施例中的镜头固定结构的剖面示意图;6a shows a schematic cross-sectional view of a lens fixing structure in another embodiment of the present application;
图6b示出了本申请另一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图;Fig. 6b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in another embodiment of the present application;
图7a示出了本申请又一个实施例中的镜头固定结构的剖面示意图;7a shows a schematic cross-sectional view of a lens fixing structure in yet another embodiment of the present application;
图7b示出了本申请又一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图;Fig. 7b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in yet another embodiment of the present application;
图8a示出了本申请再一个实施例中的镜头固定结构的剖面示意图;8a shows a schematic cross-sectional view of a lens fixing structure in still another embodiment of the present application;
图8b示出了本申请再一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图;Fig. 8b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in still another embodiment of the present application;
图9示出了本申请一个实施例中的镜头固定结构的立体示意图;FIG. 9 shows a schematic perspective view of a lens fixing structure in an embodiment of the present application;
图10示出了本申请的一个变形的实施例中的镜头固定结构的剖面示意图;10 shows a schematic cross-sectional view of a lens fixing structure in a modified embodiment of the present application;
图11示出了本申请的另一个变形的实施例中的镜头固定结构的剖面示意图;11 shows a schematic cross-sectional view of a lens fixing structure in another modified embodiment of the present application;
图12示出了本申请的又一个变形的实施例中的镜头固定结构的剖面示意图。FIG. 12 shows a schematic cross-sectional view of a lens fixing structure in yet another modified embodiment of the present application.
为了更好地理解本申请,将参考附图对本申请的各个方面做出更详细的说明。应理解,这些详细说明只是对本申请的示例性实施方式的描述,而非以任何方式限制本申请的范围。在说明书全文中,相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
应注意,在本说明书中,第一、第二等的表述仅用于将一个特征与另一个特征区分开来,而不表示对特征的任何限制。因此,在不背离本申请的教导的情况下,下文中讨论的第一主体也可被称作第二主体。It should be noted that in this specification, the expressions first, second, etc. are only used to distinguish one feature from another feature and do not imply any limitation on the feature. Accordingly, the first body discussed below could also be referred to as a second body without departing from the teachings of the present application.
在附图中,为了便于说明,已稍微夸大了物体的厚度、尺寸和形状。附图仅为示例而并非严格按比例绘制。In the drawings, the thickness, size and shape of objects have been slightly exaggerated for convenience of explanation. The drawings are examples only and are not drawn strictly to scale.
还应理解的是,用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”,当在本说明书中使用时表示存在所陈述的特征、整体、步骤、操作、元件和/或部件,但不排除存在或附加有一个或多个其它特征、整体、步骤、操作、元件、部件和/或它们的组合。此外,当诸如“...中的至少一个”的表述出现在所列特征的列表之后时,修饰整个所列特征,而不是修饰列表中的单独元件。此外,当描述本申请的实施方式时,使用“可以”表示“本申请的一个或多个实施方式”。并且,用语“示例性的”旨在指代示例或举例说明。It will also be understood that the terms "comprising", "comprising", "having", "comprising" and/or "comprising" when used in this specification mean the presence of stated features, integers, steps, operations , elements and/or parts, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and/or combinations thereof. Furthermore, when an expression such as "at least one of" appears after a list of listed features, it modifies the entire listed feature and not the individual elements of the list. Further, when describing embodiments of the present application, the use of "may" means "one or more embodiments of the present application." Also, the term "exemplary" is intended to refer to an example or illustration.
如在本文中使用的,用语“基本上”、“大约”以及类似的用语用作表近似的用语,而不用作表程度的用语,并且旨在说明将由本领域普通技术人员认识到的、测量值或计算值中的固有偏差。As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation, not of degree, and are intended to describe measurements that would be recognized by those of ordinary skill in the art. Inherent bias in a value or calculated value.
除非另外限定,否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是,用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义,并且将不被以理想化或过度正式意义解释,除非本文中明确如此限定。Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted to have meanings consistent with their meanings in the context of the related art, and will not be interpreted in an idealized or overly formal sense unless It is expressly so limited herein.
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.
下面结合附图和具体实施例对本发明做进一步地描述。The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
根据本申请的一个实施例,提供了一种具有光学致动器的潜望式摄像模组,该光学致动器采用了基于弹片的镜头固定结构,从而避免了在镜头与载体之间使用胶水粘结固定而造成的缺陷。图1示出了本申请一个实施例中的潜望式摄像模组的立体外观示意图,图2示出了本申请一个实施例中的潜望式摄像模组的剖面示意图。参考图1和图2,本实施例中,潜望式摄像模组包括一光路转折组件10、一镜头组件20和一感光组件30,光路转折组件10位于潜望式摄像模组的前端(即靠近物侧一端),以将物体的入射光线进行反射,改变光线的传播方向。镜头组件20位于光路转折组件10与感光组件30之间,光路转 折组件10出射的光线经过镜头组件20后到达感光组件30,并由感光组件30进行成像。本实施例中,镜头组件20包括一镜头21(即光学镜头)和一马达机构22,马达机构22包括一马达载体23,该马达载体23可以在马达驱动元件的作用下相对于马达壳体(该马达壳体例如可以是潜望式摄像模组壳体40的一部分)移动。所述镜头21固定于所述马达载体,在马达载体23的带动下,所述镜头21可以随着马达载体23做相对于马达壳体的移动,从而实现光学对焦和/或光学防抖。进一步地,所述马达机构22还可以用于实现光学变焦功能。本实施例中,提出了一种基于弹性构件的镜头固定结构,以将镜头21固定于马达载体23,从而避免了在镜头21与马达载体23之间使用胶水粘结固定而造成的缺陷。According to an embodiment of the present application, a periscope camera module with an optical actuator is provided. The optical actuator adopts a shrapnel-based lens fixing structure, thereby avoiding the use of glue between the lens and the carrier. Defects caused by bonding. FIG. 1 shows a schematic three-dimensional appearance of a periscope camera module in an embodiment of the present application, and FIG. 2 illustrates a cross-sectional schematic diagram of the periscope camera module in an embodiment of the present application. Referring to FIGS. 1 and 2, in this embodiment, the periscope camera module includes an optical path turning assembly 10, a lens assembly 20 and a photosensitive assembly 30, and the optical path turning assembly 10 is located at the front end of the periscope camera module (ie close to the object side) to reflect the incident light of the object and change the propagation direction of the light. The lens assembly 20 is located between the optical path inflection assembly 10 and the photosensitive assembly 30. The light emitted from the optical path inversion assembly 10 passes through the lens assembly 20 and reaches the photosensitive assembly 30, and is imaged by the photosensitive assembly 30. In this embodiment, the lens assembly 20 includes a lens 21 (ie, an optical lens) and a motor mechanism 22. The motor mechanism 22 includes a motor carrier 23, and the motor carrier 23 can be relative to the motor housing ( The motor housing may be, for example, part of the periscope camera module housing 40) to move. The lens 21 is fixed to the motor carrier. Driven by the motor carrier 23, the lens 21 can move relative to the motor housing along with the motor carrier 23, thereby realizing optical focusing and/or optical anti-shake. Further, the motor mechanism 22 can also be used to realize the optical zoom function. In this embodiment, a lens fixing structure based on an elastic member is proposed to fix the lens 21 to the motor carrier 23 , thereby avoiding the defect caused by using glue to fix the lens 21 and the motor carrier 23 .
具体来说,本实施例中,镜头包括镜片(通常为透镜)和镜筒。一般来说,镜头包括至少两个沿光轴布置的镜片,镜片的数量可以根据光学设计改变,镜筒可以将多个镜片沿光轴方向容纳其中。本实施例中,使用弹性构件将镜头固定于马达载体中。为便于描述,下文中有时将马达载体简称为载体,将载体、弹片和镜筒所构成的组合结构视为所述镜头固定结构。本实施例中,载体可以呈单侧开口的筒状。具体地,所述载体的横截面(指垂直于该载体的轴线的截面)可以呈U型,其开口侧向上。也就是说,当载体的轴线呈水平状态时,所述载体的顶侧具有开口。这样,镜筒可以从载体的顶侧放入该载体中,并且在放置过程中可以基于感光组件的实测成像结果来调整镜头的位置,使得潜望式摄像模组达到预设的成像品质指标。需注意,本申请中所述马达机构可以是VCM马达(其通常由线圈磁铁组合来提供驱动力,VCM是音圈电机的英文缩写)、SMA马达(其通过SMA元件提供驱动力,SMA是形状记忆合金的英文缩写)、或者MEMS马达(MEMS是微机电***的英文缩写)等,本申请主要涉及的是用于载体与镜头固定的固定结构,因此对于马达所采用的驱动元件的类型可以不做限制。Specifically, in this embodiment, the lens includes a lens (usually a lens) and a lens barrel. Generally speaking, the lens includes at least two lenses arranged along the optical axis, the number of the lenses can be changed according to the optical design, and the lens barrel can accommodate a plurality of lenses along the optical axis. In this embodiment, an elastic member is used to fix the lens in the motor carrier. For ease of description, the motor carrier is sometimes referred to as a carrier for short hereinafter, and the combined structure formed by the carrier, the elastic sheet and the lens barrel is regarded as the lens fixing structure. In this embodiment, the carrier may have a cylindrical shape with one side open. Specifically, the cross section of the carrier (referring to the cross section perpendicular to the axis of the carrier) may be U-shaped with the opening side facing upward. That is, when the axis of the carrier is in a horizontal state, the top side of the carrier has an opening. In this way, the lens barrel can be put into the carrier from the top side of the carrier, and the position of the lens can be adjusted based on the measured imaging result of the photosensitive component during the placement process, so that the periscope camera module can reach the preset imaging quality index. It should be noted that the motor mechanism described in this application can be a VCM motor (which usually provides a driving force by a combination of coil magnets, VCM is the English abbreviation of voice coil motor), an SMA motor (which provides driving force through SMA elements, SMA is a shape The English abbreviation of memory alloy), or MEMS motor (MEMS is the English abbreviation of Micro-Electro-Mechanical System), etc. This application mainly relates to the fixed structure used for fixing the carrier and the lens, so the type of driving element used in the motor can be different. make restrictions.
进一步地,在本申请的一些实施例中,镜头可以是D-cut镜头。D-cut镜头为在镜片上设置切割边(也可称为切边),使得镜片外轮廓形成切割圆状。图3示出了一个具有切边的镜片。本文中,将具有切边的镜片称为D-cut镜片。D-cut镜片包括至少一个弦边和至少一个圆弧边。其中弦边和圆弧边邻接,其中弦边和圆弧边的曲率不同,弦边的曲率为0,是直线段,圆弧边的曲率>0, 是一弧形线段。当镜片外轮廓由一个弦边和一个圆弧边组成时,其形状类似于字母“D”,因此称为D-cut镜片。然而,D-cut镜片并不限于字母“D”的形状。例如,参考图3,D-cut镜片可以具有两个平行的切边21a,此时其外轮廓由两个弦边和两个圆弧边构成。在一个优选实施例中,切边21a仅位于镜片的非光学区,以避免对镜头的光学区产生影响。进一步地,D-cut镜片包括两弦边和两圆边,以使得该D-cut镜片具有对称性,从而使得该D-cut镜片在成型(例如注塑成型)时,镜片产生的内部应力较为均匀。这样,在制造镜片的过程中,液态材料固化成型过程中材料本身的收缩会相对更均匀,镜片的面型精度可以在一定程度上得到提高(相比不对称的D-cut镜片)。进一步地,为使得D-cut镜片与镜筒紧密组合,可以在镜筒上也设置至少一切边,且D-cut镜片的切边与镜筒的切边的位置匹配,镜片在组入镜筒中时,镜筒对镜片的压力作用相对均匀对称,以使得镜片受镜筒挤压而导致的形变更均匀对称。进一步地,D-cut镜片可以通过注塑成型的方式成型,其中切边可以直接通过设定模具形状而直接成型呈D-cut状(即切割圆状);也可以先成型一常规镜片,然后通过切削的方式实现切边的设置。Further, in some embodiments of the present application, the lens may be a D-cut lens. A D-cut lens is to set a cut edge (also called a cut edge) on the lens, so that the outer contour of the lens forms a cut circle. Figure 3 shows a lens with a cut edge. Herein, lenses with cut edges are referred to as D-cut lenses. D-cut lenses include at least one chord edge and at least one arc edge. The chord edge and the arc edge are adjacent, and the curvature of the chord edge and the arc edge are different, the curvature of the chord edge is 0, it is a straight line segment, and the curvature of the arc edge > 0, it is an arc line segment. When the outer contour of the lens consists of a chord edge and an arc edge, its shape is similar to the letter "D", so it is called a D-cut lens. However, D-cut lenses are not limited to the shape of the letter "D". For example, referring to FIG. 3 , the D-cut lens may have two parallel cut edges 21a, and at this time, its outer contour is composed of two chord edges and two arc edges. In a preferred embodiment, the cut edge 21a is only located in the non-optical area of the lens to avoid affecting the optical area of the lens. Further, the D-cut lens includes two chord edges and two round edges, so that the D-cut lens has symmetry, so that when the D-cut lens is molded (such as injection molding), the internal stress generated by the lens is relatively uniform . In this way, in the process of manufacturing the lens, the shrinkage of the material itself during the curing and molding of the liquid material will be relatively more uniform, and the surface accuracy of the lens can be improved to a certain extent (compared to asymmetric D-cut lenses). Further, in order to make the D-cut lens and the lens barrel tightly combined, at least a cut edge can also be provided on the lens barrel, and the position of the cut edge of the D-cut lens matches the position of the cut edge of the lens barrel, and the lens is assembled into the lens barrel. When the pressure of the lens barrel is relatively uniform and symmetrical, the deformation of the lens caused by the extrusion of the lens barrel is more uniform and symmetrical. Further, the D-cut lens can be molded by injection molding, wherein the cut edge can be directly molded into a D-cut shape (ie, a circular shape) by setting the shape of the mold; The cutting method realizes the setting of cutting edge.
上述实施例中,对于卧式组装的潜望式摄像模组,在将镜头与载体组装时,镜头的切边可以置于顶侧。当镜头具有两个平行的切边时,两个平行的切边可以分别置于顶侧和底侧。这里卧式组装是指在组装时光路转折组件10、镜头组件20和感光组件30沿水平方向布置(即横向布置,可参考图2)。In the above-mentioned embodiment, for the horizontally assembled periscope camera module, when the lens and the carrier are assembled, the cut edge of the lens can be placed on the top side. When the lens has two parallel cut edges, the two parallel cut edges can be placed on the top and bottom sides, respectively. The horizontal assembly here means that the optical path turning assembly 10 , the lens assembly 20 and the photosensitive assembly 30 are arranged in a horizontal direction during assembly (ie, horizontally arranged, please refer to FIG. 2 ).
需注意,在现有的潜望式摄像模组的组装过程中,为使镜头牢固的固定于马达载体,在镜头及马达载体之间布设大量胶水以将镜头及马达载体粘接固定。不论是常规镜头还是D-cut镜头,通过胶水将镜头与马达载体固定,胶水在固化的过程中会收缩,在收缩的过程中会对镜筒产生拉扯,由于胶水的收缩量与粘接位置的收缩量不同,因此会导致镜头内部产生不均匀的应力,从而对镜筒内的镜片造成挤压从而使得镜片面型发生变化,而对成像效果产生影响;再者,在摄像模组的烘烤并冷却的过程中,镜头的镜筒与胶水之间的热膨胀系数不匹配(不同),镜头的镜筒与胶水之间产生了不同的收缩量,也会使镜头内部产生不均匀的应力,应力对镜头中的镜片面型造成影响,使成像品质下降。在常规镜头中,镜头内的应力不均会使得镜片的面型发生变化,变大或缩小;而在D-cut镜头中,由于镜筒和镜片具有切边,胶水的应力影响会使得镜头内 的应力不均匀,并且由于在切边镜筒离镜片光学区的距离更短,因此在切边胶水的应力会对镜片产生更大的影响,使得镜片更容易发生形变。It should be noted that, in the assembling process of the existing periscope camera module, in order to firmly fix the lens to the motor carrier, a large amount of glue is arranged between the lens and the motor carrier to bond and fix the lens and the motor carrier. Whether it is a conventional lens or a D-cut lens, the lens and the motor carrier are fixed by glue, the glue will shrink during the curing process, and the lens barrel will be pulled during the shrinking process. The amount of shrinkage is different, so it will cause uneven stress inside the lens, which will squeeze the lens in the lens barrel, which will change the surface shape of the lens and affect the imaging effect; in addition, the baking of the camera module During the cooling process, the thermal expansion coefficient between the lens barrel of the lens and the glue does not match (different), resulting in different shrinkage between the lens barrel and the glue, which will also cause uneven stress inside the lens. Affects the surface shape of the lens in the lens and reduces the image quality. In a conventional lens, the uneven stress in the lens will cause the surface shape of the lens to change, becoming larger or smaller; while in a D-cut lens, because the lens barrel and the lens have cut edges, the stress of the glue will make the lens inside the lens. The stress is not uniform, and since the distance between the lens barrel at the cut edge and the optical zone of the lens is shorter, the stress of the glue at the cut edge will have a greater impact on the lens, making the lens more prone to deformation.
为了避免镜筒与马达载体间胶水应力的影响,本申请中在镜筒与马达载体间设置一弹性构件,进而构成一镜头固定结构。该镜头固定结构中,弹性构件被设置于镜筒与马达载体之间,用于支撑和固定镜头。In order to avoid the influence of the glue stress between the lens barrel and the motor carrier, in the present application, an elastic member is arranged between the lens barrel and the motor carrier, thereby forming a lens fixing structure. In the lens fixing structure, the elastic member is arranged between the lens barrel and the motor carrier for supporting and fixing the lens.
进一步地,在本申请的一个实施例中,所述镜头固定结构中,弹性构件的一端通过扣合或模塑的方式固定于镜筒,另一端通过粘贴或扣合的方式固定于马达载体。通过该弹性构件,可以避免镜筒与马达载体之间直接通过胶水粘贴,从而避免了胶水产生的应力直接影响镜筒,避免镜头产生形变,保证拍摄质量和效果。弹性构件在镜筒与马达载体之间具有一定的预紧力,该预紧力增加了镜头与马达间的摩擦力,从而避免镜头随意晃动。预紧力是指:弹性构件在安装状态下就具有一定的载荷,其用于消除机械机构的异响、晃动。Further, in an embodiment of the present application, in the lens fixing structure, one end of the elastic member is fixed to the lens barrel by means of buckling or molding, and the other end is fixed to the motor carrier by means of sticking or buckling. Through the elastic member, it can be avoided that the lens barrel and the motor carrier are directly pasted with glue, thereby avoiding the stress generated by the glue directly affecting the lens barrel, preventing the lens from being deformed, and ensuring the shooting quality and effect. The elastic member has a certain pre-tightening force between the lens barrel and the motor carrier, and the pre-tightening force increases the frictional force between the lens and the motor, thereby preventing the lens from shaking at will. The pre-tightening force means that the elastic member has a certain load in the installed state, which is used to eliminate the abnormal noise and shaking of the mechanical mechanism.
进一步地,图4示出了本申请的一个实施例中的镜头固定结构的剖面示意图。参考图4,本实施例中,镜头固定结构包括镜筒51、载体52和连接所述镜筒52和所述载体52的弹性构件53。所述弹性构件53包括一用于固定镜筒的固定部531和一用于连接载体52的连接部532。所述固定部531的轮廓呈U形,该U形固定部531的内部构成一容纳腔,容纳腔的顶部具有开口(即固定部531的开口的方向与马达载体52的开口方向相同),以便镜筒51从顶部装入该容纳腔。并且,在放置过程中可根据实际成像结果来调整镜头的位置,从而提升成像品质。弹性构件53的承靠面531a的形状可以与镜筒51的外侧面一致,即弹性构件53的固定部531可以包括一平面状的底壁533和两个弧形侧壁534。两个呈弧形的侧壁534可以具有预紧力,从而从两侧夹住所述镜筒51。在组装过程中,镜头从固定部531的开口处塞入容纳腔,镜头向下移动过程中,该镜头先是向外挤压弹性构件53的两个弧形侧壁534,使开口增大,然后在镜头装入容纳腔后两个弧形侧壁534在弹力的作用下向内回弹,开口缩小,从而将镜筒51(也就是将整个镜头)扣合在弹性构件53的固定部531内。由于弹性构件53两侧的弧形侧壁534对称布置,该弹性构件53可以提供平稳和力度适当的弹力以将镜头夹持固定,使镜头在摄像模组发生晃动时不会脱落,同时还可以保证拍摄质量和拍摄效果。Further, FIG. 4 shows a schematic cross-sectional view of a lens fixing structure in an embodiment of the present application. Referring to FIG. 4 , in this embodiment, the lens fixing structure includes a lens barrel 51 , a carrier 52 , and an elastic member 53 connecting the lens barrel 52 and the carrier 52 . The elastic member 53 includes a fixing portion 531 for fixing the lens barrel and a connecting portion 532 for connecting the carrier 52 . The outline of the fixing portion 531 is U-shaped, and the interior of the U-shaped fixing portion 531 forms a accommodating cavity, and the top of the accommodating cavity has an opening (that is, the opening direction of the fixing portion 531 is the same as the opening direction of the motor carrier 52 ), so that The lens barrel 51 is loaded into the accommodating cavity from the top. Moreover, during the placement process, the position of the lens can be adjusted according to the actual imaging results, thereby improving the imaging quality. The shape of the bearing surface 531a of the elastic member 53 may be consistent with the outer surface of the lens barrel 51 , that is, the fixing portion 531 of the elastic member 53 may include a planar bottom wall 533 and two arcuate side walls 534 . The two arc-shaped side walls 534 may have a preload to clamp the lens barrel 51 from both sides. During the assembly process, the lens is inserted into the accommodating cavity from the opening of the fixing portion 531. During the downward movement of the lens, the lens first squeezes the two arc-shaped side walls 534 of the elastic member 53 outward to make the opening larger, and then After the lens is installed in the accommodating cavity, the two arc-shaped side walls 534 rebound inward under the action of the elastic force, and the opening is reduced, so that the lens barrel 51 (that is, the entire lens) is buckled in the fixing portion 531 of the elastic member 53 . Since the curved side walls 534 on both sides of the elastic member 53 are symmetrically arranged, the elastic member 53 can provide a stable and appropriate elastic force to clamp and fix the lens, so that the lens will not fall off when the camera module is shaken, and also Guarantee the shooting quality and shooting effect.
进一步地,在本申请的一个实施例中,为使镜头的固定更加牢固,所述弹性构件的固定部开口尺寸小于镜筒的外直径,即固定部的高度高于镜头的光轴,该光轴呈水平姿态,本实施例中,可以将所述镜筒的中轴位置视为镜头的光轴位置。基于这种设计,在镜头放入弹性构件固定部的过程中,固定部的开口由于弹性构件的弹性而变大,在镜头放入固定部后,开口回到原来的位置,将镜头固定于弹性构件中。Further, in an embodiment of the present application, in order to fix the lens more firmly, the size of the opening of the fixing portion of the elastic member is smaller than the outer diameter of the lens barrel, that is, the height of the fixing portion is higher than the optical axis of the lens, and the light The axis is in a horizontal posture. In this embodiment, the position of the central axis of the lens barrel can be regarded as the position of the optical axis of the lens. Based on this design, when the lens is put into the fixing part of the elastic member, the opening of the fixing part becomes larger due to the elasticity of the elastic member. After the lens is put into the fixing part, the opening returns to the original position, and the lens is fixed in the elastic in the component.
进一步地,仍然参考图4,在本申请的一个实施例中,所述弹性构件53的连接部532一端连接固定部531,另一端连接马达载体52的内侧面。其中连接部532与固定部531可以是一体成型的,所述固定部531的弧形侧壁534的顶端向外弯折(此处向外是指背离镜筒的方向)后再向下延伸形成所述连接部532,该连接部432的与马达载体52连接的一端可以具有端部连接件,以便通过卡扣结构将弹性构件53与马达载体52进行固定,使得弹性构件53与马达载体52固定得更加牢固。将弹性构件53与马达载体52的连接处设置于马达载体52的侧壁,可以不占用潜望式摄像模组在高度方向上的空间,从而避免潜望式摄像模组的高度增加。进一步地,所述弹性构件53的连接部532可以呈如图4所示的单臂弧形,所述固定部531两侧的弧形侧壁534各连接一个所述连接部532。在另一实施例中,所述连接部也可以是U形的,即该连接部具有双臂和双臂之间的弯折段,所述固定部两侧的弧形侧壁各连接一个这种U形连接部。在又一实施例中,所述连接部还可以是由多个U形组成的蜿蜒形状,即该连接部具有多个弧形臂和连接这些弧形臂的多个弯折段,所述固定部两侧的弧形侧壁各连接一个这种蜿蜒状连接部。Further, still referring to FIG. 4 , in an embodiment of the present application, one end of the connecting portion 532 of the elastic member 53 is connected to the fixing portion 531 , and the other end is connected to the inner side surface of the motor carrier 52 . The connecting portion 532 and the fixing portion 531 may be integrally formed, and the top end of the arc-shaped side wall 534 of the fixing portion 531 is bent outward (here, outward refers to the direction away from the lens barrel), and then extends downward to form The connecting part 532, one end of the connecting part 432 connected with the motor carrier 52 may have an end connector, so as to fix the elastic member 53 and the motor carrier 52 through a snap structure, so that the elastic member 53 and the motor carrier 52 are fixed be more solid. The connection between the elastic member 53 and the motor carrier 52 is disposed on the side wall of the motor carrier 52 , so as not to occupy the space of the periscope camera module in the height direction, thereby preventing the height of the periscope camera module from increasing. Further, the connecting portion 532 of the elastic member 53 may be in a single-arm arc shape as shown in FIG. In another embodiment, the connecting portion can also be U-shaped, that is, the connecting portion has two arms and a bending section between the two arms, and the arc-shaped side walls on both sides of the fixing portion are connected to one of the two arms. A U-shaped connection. In yet another embodiment, the connecting portion may also be a serpentine shape composed of a plurality of U shapes, that is, the connecting portion has a plurality of arc-shaped arms and a plurality of bending segments connecting the arc-shaped arms, the The curved sidewalls on both sides of the fixed portion are connected with one such serpentine connection portion.
进一步地,图5示出了本申请一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图。参考图5,本实施例中,所述镜头固定结构中,马达载体52的内侧壁上设置一T型凸起,该T型凸起可以与马达载体一体成型。T型凸起具有一颈部521和一端部522,其颈部521尺寸小于其端部522的尺寸,使得弹性构件53的端部连接件卡合到马达载体52的T型凸起后不会自己脱落。进步一地,所述马达载体的T型凸起的端部可以具有一倾斜的斜面522a,该斜面的倾斜角度α满足90°<α<180°,以方便弹性构件的端部连接件与T型凸起卡合。与马达载体上T型凸起相对应的位置,弹性构件53的端部连接件设置有一开孔,开孔的形状与T型凸起颈部521的形状相匹配,使得T型凸起 可以伸入开孔中,将马达载体52与弹性构件53通过该卡扣结构进行固定。本实施例中马达载体52与弹性构件53连接处的卡扣结构可以为一个,也可以为多个,本申请卡扣结构的数目不做限制。Further, FIG. 5 shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in an embodiment of the present application. Referring to FIG. 5 , in the present embodiment, in the lens fixing structure, a T-shaped protrusion is provided on the inner side wall of the motor carrier 52 , and the T-shaped protrusion can be integrally formed with the motor carrier. The T-shaped protrusion has a neck portion 521 and one end portion 522. The size of the neck portion 521 is smaller than that of the end portion 522, so that the end connecting piece of the elastic member 53 will not be locked after being snapped to the T-shaped protrusion of the motor carrier 52. fall off on its own. Further, the end of the T-shaped protrusion of the motor carrier may have an inclined inclined surface 522a, and the inclined angle α of the inclined surface satisfies 90°<α<180°, so as to facilitate the connection between the end part of the elastic member and the T-shaped surface. Type raised snap. At the position corresponding to the T-shaped protrusion on the motor carrier, the end connector of the elastic member 53 is provided with an opening, and the shape of the opening matches the shape of the T-shaped protrusion neck 521, so that the T-shaped protrusion can extend. into the opening, and the motor carrier 52 and the elastic member 53 are fixed by the buckle structure. In this embodiment, the number of the buckle structures at the connection between the motor carrier 52 and the elastic member 53 may be one or multiple, and the number of the buckle structures is not limited in the present application.
进一步地,图6a示出了本申请另一个实施例中的镜头固定结构的剖面示意图。图6b示出了本申请另一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图。参考图6a和图6b,所述镜头固定结构中,马达载体52的内侧壁设置一凹槽57,在弹性构件53的端部连接件上设置T型凸起,该T型凸起与弹性构件53的连接部532可以是一体成型的。T型凸起的颈部55尺寸小于其端部56的尺寸,使得弹性构件的端部连接件卡合到马达载体52的凹槽57内后不会自己脱落。T型凸起的端部56具有一倾斜的斜面,该斜面的倾斜角度α满足90°<α<180°,以方便弹性构件的端部连接件的T型凸起与马达载体的凹槽卡合。T型凸起的位置与凹槽的位置相对设置,并且T型凸起颈部的形状与凹槽的形状相匹配。本实施例中马达载体与弹性构件连接处的卡扣结构可以为一个,也可以为多个,本申请卡扣结构的数目不做限制。Further, FIG. 6a shows a schematic cross-sectional view of a lens fixing structure in another embodiment of the present application. Fig. 6b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in another embodiment of the present application. 6a and 6b, in the lens fixing structure, a groove 57 is provided on the inner side wall of the motor carrier 52, and a T-shaped protrusion is provided on the end connecting piece of the elastic member 53, and the T-shaped protrusion is connected to the elastic member. The connecting portion 532 of 53 may be integrally formed. The size of the neck portion 55 of the T-shaped protrusion is smaller than the size of the end portion 56 , so that the end connecting piece of the elastic member will not fall off by itself after being snapped into the groove 57 of the motor carrier 52 . The end portion 56 of the T-shaped protrusion has an inclined inclined surface, and the inclined angle α of the inclined surface satisfies 90°<α<180°, so as to facilitate the T-shaped protrusion of the end connecting piece of the elastic member and the groove of the motor carrier. combine. The position of the T-shaped protrusion is opposite to the position of the groove, and the shape of the neck of the T-shaped protrusion matches the shape of the groove. In this embodiment, there may be one or a plurality of buckle structures at the connection between the motor carrier and the elastic member, and the number of the buckle structures in the present application is not limited.
图7a示出了本申请又一个实施例中的镜头固定结构的剖面示意图。图7b示出了本申请又一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图。参考图7a和图7b,在本申请的又一实施例中,所述镜头固定结构中,所述弹性构件53的端部连接件还可以通过粘贴的方式与马达载体52的内侧壁固定,弹性构件53与马达载体52间虽然进行涂胶,但是胶水固化产生的应力会被弹性构件抵消,无法传导到镜头,因此不会对镜头的应力产生影响,从而可以保障镜头的成像品质。FIG. 7a shows a schematic cross-sectional view of a lens fixing structure in yet another embodiment of the present application. Fig. 7b shows a partially enlarged schematic view of the snap connection between the motor carrier and the elastic member in another embodiment of the present application. 7a and 7b, in another embodiment of the present application, in the lens fixing structure, the end connector of the elastic member 53 can also be fixed to the inner side wall of the motor carrier 52 by means of pasting, elastic Although glue is applied between the member 53 and the motor carrier 52, the stress generated by the curing of the glue will be offset by the elastic member and cannot be transmitted to the lens, so it will not affect the stress of the lens, thereby ensuring the imaging quality of the lens.
图8a示出了本申请再一个实施例中的镜头固定结构的剖面示意图。图8b示出了本申请再一个实施例中的马达载体和弹性构件之间卡扣连接的局部放大示意图。参考图8a和图8b,在本申请的再一实施例中,所述镜头固定结构中,弹性构件53与马达载体52间的卡扣结构也可以设置为通过一公扣和一母进行扣合。具体地,弹性构件的端部连接件上可以设置一母扣,马达载体的内侧壁可以设置一公扣,公扣与母扣的位置相对,通过该公扣与母扣的卡合,使弹性构件与马达载体进行固定。或者,公扣与母扣的位置可以进行调换,即弹性构件的端部连接件上设置一公扣,马达载体的内侧壁设置一母扣。FIG. 8a shows a schematic cross-sectional view of a lens fixing structure in still another embodiment of the present application. Fig. 8b shows a partial enlarged schematic view of the snap connection between the motor carrier and the elastic member in still another embodiment of the present application. 8a and 8b, in yet another embodiment of the present application, in the lens fixing structure, the buckle structure between the elastic member 53 and the motor carrier 52 can also be configured to be buckled by a male buckle and a female . Specifically, a female buckle may be arranged on the end connecting piece of the elastic member, and a male buckle may be arranged on the inner side wall of the motor carrier. The position of the male buckle and the female buckle is opposite. The component is fixed to the motor carrier. Alternatively, the positions of the male buckle and the female buckle can be exchanged, that is, a male buckle is arranged on the end connecting piece of the elastic member, and a female buckle is arranged on the inner side wall of the motor carrier.
本申请中,弹性构件的结构以及弹性构件、镜头和马达载体的扣合方式不限于上述实施例中描述的方式,只要使得弹性构件能够实现其功能,并且固定于镜头和马达载体之间即可。In this application, the structure of the elastic member and the way of engaging the elastic member, the lens and the motor carrier are not limited to the methods described in the above embodiments, as long as the elastic member can achieve its function and be fixed between the lens and the motor carrier. .
图9示出了本申请一个实施例中的镜头固定结构的立体示意图。参考图9,本实施例中,镜头21的光轴与Y轴方向一致,呈水平姿态。假设镜头21(结合参考图2)在光轴方向长度为L。弹性构件(图9中弹性构件被遮挡,因此未直接示出)的长度(沿光轴方向的尺寸)不大于镜头21的长度L。也就是说,弹性构件的长度可以恰好与镜头21的长度相匹配(大致相同),也可以小于镜头21的长度。本实施例中,镜头21包括多个镜片,根据镜片径向尺寸的不同,镜头的不同区段的径向尺寸(径向指垂直于光轴的方向)也可以是不同的。例如图9中,镜头21的中间区段21b的径向尺寸小于其前端区段21a(靠近物侧一端的区段)的径向尺寸,且大于其后端区段21c(靠近像侧一端的区段)的径向尺寸。本实施例中,弹性构件可以设置于镜头21的中间区段21b。由于中间区段21b的径向尺寸小于其前端区段21a,因此镜头21的中间区段21b与载体23之间具有足以容纳所述弹性构件的间隙。另一方面,弹性构件的长度(即Y轴方向的尺寸)可以与镜头的中间区段21b的长度适配。由于弹性构件设置在镜头的中间区段21b,因此也有助于镜头的前后重量的平衡,提升镜头固定结构的牢固性。进一步地,本实施例中,所述弹性构件中,其固定部的长度(指Y轴方向上的尺寸)与连接部(指Y轴方向上的尺寸)的长度可以基本上相同。FIG. 9 shows a schematic perspective view of a lens fixing structure in an embodiment of the present application. Referring to FIG. 9 , in this embodiment, the optical axis of the lens 21 is in the same direction as the Y axis, and is in a horizontal posture. It is assumed that the length of the lens 21 (in conjunction with reference to FIG. 2 ) is L in the optical axis direction. The length (dimension in the optical axis direction) of the elastic member (the elastic member is blocked in FIG. 9 and thus not directly shown) is not greater than the length L of the lens 21 . That is to say, the length of the elastic member may exactly match (substantially the same as) the length of the lens 21 , or may be smaller than the length of the lens 21 . In this embodiment, the lens 21 includes a plurality of lenses. According to the different radial dimensions of the lenses, the radial dimensions of different segments of the lens (the radial direction refers to the direction perpendicular to the optical axis) may also be different. For example, in FIG. 9 , the radial dimension of the middle section 21b of the lens 21 is smaller than the radial dimension of the front section 21a (the section close to the object side) and larger than the rear section 21c (the end close to the image side). segment) radial dimension. In this embodiment, the elastic member may be disposed on the middle section 21b of the lens 21 . Since the radial dimension of the middle section 21b is smaller than that of the front end section 21a thereof, there is a gap sufficient to accommodate the elastic member between the middle section 21b of the lens 21 and the carrier 23 . On the other hand, the length of the elastic member (ie, the dimension in the Y-axis direction) may be adapted to the length of the middle section 21b of the lens. Since the elastic member is arranged in the middle section 21b of the lens, it also helps to balance the front and rear weight of the lens, and enhances the firmness of the lens fixing structure. Further, in this embodiment, in the elastic member, the length of the fixing portion (referring to the dimension in the Y-axis direction) and the length of the connecting portion (referring to the dimension in the Y-axis direction) may be substantially the same.
在另一实施例中,所述弹性构件也可以设置于镜头的端部区段(例如前端区域或后端区段)。优选地,弹性构件设置于镜片的光学敏感度(下文中简称为敏感度)较高的一端,镜片敏感度较高即在镜片发生变化时对成像效果的影响更大。在镜片敏感度较高的一端设置弹性构件而取消胶水,可以避免胶水固化时应力对高敏感度镜片的面型产生影响,从而更好地保证成像质量。In another embodiment, the elastic member may also be provided at an end section of the lens (eg a front end region or a rear end section). Preferably, the elastic member is disposed at the end of the lens with higher optical sensitivity (hereinafter referred to as sensitivity), and the higher the sensitivity of the lens, that is, the greater the impact on the imaging effect when the lens changes. Disposing an elastic member at the end of the lens with high sensitivity and eliminating the glue can avoid the influence of the stress on the surface shape of the high-sensitivity lens when the glue is cured, so as to better ensure the imaging quality.
进一步地,在一优选实施例中,弹性构件设置于镜筒的径向尺寸较小的一端(例如镜筒的后端区段)。对于长焦摄像模组,由于其具有较小的视场角,为配合较小的视场角,除第一镜片的之外的其他镜片可以被设计成较小的尺寸。这样镜片尺寸较小的一端会具有更大的空间,将弹性构件设置于镜片尺寸较小的一端,可以将镜头与载体之间的空隙充分利用,提高摄像模组的空间利用率,使得模组的结构更加紧凑,进而帮助模组实现小型化。Further, in a preferred embodiment, the elastic member is disposed at the end of the lens barrel with a smaller radial dimension (eg, the rear end section of the lens barrel). For the telephoto camera module, since it has a smaller field of view, in order to match the smaller field of view, other lenses except the first lens can be designed to be smaller in size. In this way, the end of the lens with the smaller size will have a larger space. By arranging the elastic member at the end of the lens with the smaller size, the gap between the lens and the carrier can be fully utilized, and the space utilization rate of the camera module can be improved. The structure is more compact, thereby helping the module to achieve miniaturization.
进一步地,在本申请的一些实施例中,所述弹性构件可以为弹簧、弹片或其他有弹性元件。Further, in some embodiments of the present application, the elastic member may be a spring, an elastic sheet or other elastic elements.
进一步地,根据本申请的一个实施例,还提供了一种所述镜头固定结构的组装方法,该方法包括:将镜头采用按压的方式放入弹性构件的容纳腔中,并通过弹性构件的固定部对镜头进行固定;将镜头与弹性构件组成的半成品放入马达载体中,将弹性构件的端部连接件与马达载体的扣合件进行卡合,通过弹性构件与马达载体间的卡扣结构将弹性构件固定于马达载体。进一步地,为了使弹性构件与马达载体的固定更加牢固,本实施例中,还可以在卡扣结构进一步添加胶水对卡扣连接进行补强,防止弹性构件脱落。在组装过程中,弹性构件会在镜头的挤压力下产生一定的形变,但在组装完成后,弹性构件会通过弹力基本回复到原来的形状。Further, according to an embodiment of the present application, there is also provided a method for assembling the lens fixing structure, the method comprising: putting the lens into the accommodating cavity of the elastic member by pressing, and fixing the lens by the elastic member The lens is fixed by the part; the semi-finished product composed of the lens and the elastic member is put into the motor carrier, and the end connector of the elastic member is engaged with the fastener of the motor carrier, and the buckle structure between the elastic member and the motor carrier is used. Fix the elastic member to the motor carrier. Further, in order to fix the elastic member and the motor carrier more firmly, in this embodiment, glue can be further added to the buckle structure to reinforce the buckle connection and prevent the elastic member from falling off. During the assembly process, the elastic member will deform to a certain extent under the pressing force of the lens, but after the assembly is completed, the elastic member will basically return to its original shape through elastic force.
进步一地,仍然参考图2,在本申请的一个实施例中,所述潜望式摄像模组中,所述光路转折组件10可以包括一反射元件11和一反射元件载体12,反射元件11为反射镜或棱镜。反射元件11适于将从光窗13竖直进入摄像模组的光线进行90°转折,将该反射元件11入射端的竖直方向的光轴转折至出射端的水平方向。反射元件11可以承靠于反射元件载体12。在一些实施例中,光路转折组件10还可以包括一驱动元件14,所述驱动元件14设置于反射元件载体12,以驱动反射元件11转动或平移,实现潜望式摄像模组的光学防抖。Further, still referring to FIG. 2, in an embodiment of the present application, in the periscope camera module, the optical path turning assembly 10 may include a reflective element 11 and a reflective element carrier 12, and the reflective element 11 for mirrors or prisms. The reflection element 11 is suitable for turning the light entering the camera module from the light window 13 vertically by 90°, and turning the optical axis in the vertical direction of the incident end of the reflection element 11 to the horizontal direction of the outgoing end. The reflective element 11 can bear against the reflective element carrier 12 . In some embodiments, the optical path turning assembly 10 may further include a driving element 14, the driving element 14 is disposed on the reflective element carrier 12 to drive the reflective element 11 to rotate or translate, so as to realize the optical image stabilization of the periscope camera module .
进步一地,仍然参考图2,在本申请的一个实施例中,所述潜望式摄像模组中,感光组件30包括一滤光元件31和一感光元件32,滤光元件31包括一滤光片支架31a和安装于滤光片支架31a的滤光片31b,滤光片31b贴附于滤光片支架31a,用于过滤红外光。感光元件32包括感光芯片32a和线路板32b,感光芯片32a安装于线路板32b的表面,滤光片支架31a和滤光片31b置于感光芯片32a的前端,且滤光片支架31a与线路板33b相贴合。Still referring to FIG. 2 , in an embodiment of the present application, in the periscope camera module, the photosensitive component 30 includes a filter element 31 and a photosensitive element 32 , and the filter element 31 includes a filter element 31 . The optical filter holder 31a and the optical filter 31b mounted on the optical filter holder 31a, the optical filter 31b is attached to the optical filter holder 31a, and is used for filtering infrared light. The photosensitive element 32 includes a photosensitive chip 32a and a circuit board 32b. The photosensitive chip 32a is mounted on the surface of the circuit board 32b. 33b fit.
进一步地,在本申请的一个优选实施例中,光路转折组件、镜头组件和感光组件在组装过程中先进行主动校准,再进行固定,以保证镜头的光轴与感光元件的中心位置偏差在预设的可容许的公差范围内,从而实现光轴一致性。其中主动校准是指根据感光组件的实测成像结果对光路转折组件、镜头组件和感光组件的相对位置进行调整,从而获得成像品质达标的光学***。在实际组装 时,可以基于主动校准结果进行组装,使得光路转折组件、镜头组件和感光组件之间的相对位置保持在主动校准所确定相对位置。Further, in a preferred embodiment of the present application, the optical path turning assembly, the lens assembly and the photosensitive assembly are firstly calibrated and then fixed during the assembly process to ensure that the deviation between the optical axis of the lens and the center position of the photosensitive element is within the predetermined range. Within the allowable tolerance range set, so as to achieve optical axis consistency. The active calibration refers to adjusting the relative positions of the optical path turning component, the lens component and the photosensitive component according to the measured imaging results of the photosensitive component, so as to obtain an optical system with the imaging quality up to the standard. During actual assembly, the assembly can be performed based on the results of the active calibration, so that the relative positions between the optical path turning component, the lens component and the photosensitive component are maintained at the relative positions determined by the active calibration.
进一步地,在本申请的一个实施例中,潜望式摄像模组的壳体40包括一底座41和一盖体42,所述盖体42具有一窗口,该窗口可以作为潜望式摄像模组的光入射口(即光窗13),使潜望式摄像模组能够接收被摄物反射的光线。盖体与底座相固定,盖体42与底座41之间的空间形成一腔体,用于容纳光路转折组件10、镜头组件20和感光组件30。需注意,光路转折组件10和镜头组件20可以固定于同一底座41上,也可以分别固定在两分离的底座上。例如在本申请的另一实施例中,所述底座包括相分离的第一底座及第二底座,第二底座承载镜头组件和感光组件,第一底座承载光路转折组件。Further, in an embodiment of the present application, the housing 40 of the periscope camera module includes a base 41 and a cover 42, the cover 42 has a window, and the window can be used as a periscope camera module The group of light entrances (ie the light window 13 ) enables the periscope camera module to receive the light reflected by the subject. The cover body is fixed with the base, and the space between the cover body 42 and the base 41 forms a cavity for accommodating the optical path turning assembly 10 , the lens assembly 20 and the photosensitive assembly 30 . It should be noted that the optical path turning assembly 10 and the lens assembly 20 may be fixed on the same base 41, or may be respectively fixed on two separate bases. For example, in another embodiment of the present application, the base includes a first base and a second base that are separated from each other, the second base supports a lens assembly and a photosensitive assembly, and the first base supports an optical path turning assembly.
进一步地,图10示出了本申请的一个变形的实施例中的镜头固定结构的剖面示意图。参考图10,本实施例中,所述弹性构件53的固定部可以直接嵌入镜筒51中。在具体实现上,可以通过嵌入式注塑成型工艺,在镜筒51成型过程中将弹性构件53的固定部531嵌入。由于镜筒51和弹性构件53的固定部531一体成型,因此二者之间可以牢固地连接固定。本实施例中所述固定部531的形状可以类似于图4所示的固定部。即该固定部亦可以包括一平面状的底壁和两个弧形侧壁。Further, FIG. 10 shows a schematic cross-sectional view of the lens fixing structure in a modified embodiment of the present application. Referring to FIG. 10 , in this embodiment, the fixing portion of the elastic member 53 can be directly embedded in the lens barrel 51 . In terms of specific implementation, the fixing portion 531 of the elastic member 53 can be embedded during the molding process of the lens barrel 51 through an insert injection molding process. Since the lens barrel 51 and the fixing portion 531 of the elastic member 53 are integrally formed, the two can be firmly connected and fixed. The shape of the fixing portion 531 in this embodiment may be similar to the fixing portion shown in FIG. 4 . That is, the fixing portion may also include a planar bottom wall and two arcuate side walls.
进一步地,图11示出了本申请的另一个变形的实施例中的镜头固定结构的剖面示意图。参考图11,本实施例中,所述弹性构件53的固定部531可以直接嵌入镜筒51中。嵌入方法可以类似于图10所示的前一实施例。本实施例与前一实施例的区别是,所述固定部可以仅包括两个弧形侧壁534,平面状的底壁可以被取消,也就是说,本实施例中,弹性构件53可以包括分离的两个子构件,每个子构件包括一个弧形侧壁534和与其连接的连接部532。并且,每个子构件的弧形侧壁534分别嵌入镜筒51的一个侧壁(例如镜筒的左侧壁或右侧壁)。Further, FIG. 11 shows a schematic cross-sectional view of the lens fixing structure in another modified embodiment of the present application. Referring to FIG. 11 , in this embodiment, the fixing portion 531 of the elastic member 53 can be directly embedded in the lens barrel 51 . The embedding method may be similar to the previous embodiment shown in FIG. 10 . The difference between this embodiment and the previous embodiment is that the fixing portion may only include two arcuate side walls 534, and the planar bottom wall may be eliminated. That is, in this embodiment, the elastic member 53 may include Two separate sub-components, each of which includes an arcuate side wall 534 and a connecting portion 532 connected thereto. And, the arc-shaped side wall 534 of each sub-component is respectively embedded in one side wall of the lens barrel 51 (eg, the left side wall or the right side wall of the lens barrel).
进一步地,图12示出了本申请的又一个变形的实施例中的镜头固定结构的剖面示意图。参考图12,本实施例中,所述弹性构件的固定部可以仅包括两个弧形侧壁534,每个弧形侧壁534均具有适于承靠于所述镜筒51外侧面的弧形承靠面。并且所述每个弧形侧壁534的端部通过卡扣结构与所述镜筒51连接。 具体来说,所述弧形侧壁534的自由端的位置较低,其连接所述连接部532的一端位置较高。所述弧形侧壁534的自由端可以设置卡扣结构或与卡扣适配的结构,从而与镜筒51的外侧面连接。而所述弧形侧壁534的连接端向外弯折再向下延伸,形成所述连接部532,所述连接部532呈单臂弧形,并且该所述连接部532的自由端也通过卡扣结构与所述载体52的内侧面连接。Further, FIG. 12 shows a schematic cross-sectional view of the lens fixing structure in yet another modified embodiment of the present application. Referring to FIG. 12 , in this embodiment, the fixing portion of the elastic member may only include two arc-shaped side walls 534 , and each arc-shaped side wall 534 has an arc suitable for bearing against the outer surface of the lens barrel 51 . Shape bearing surface. And the end of each arc-shaped side wall 534 is connected with the lens barrel 51 through a buckle structure. Specifically, the position of the free end of the arc-shaped side wall 534 is lower, and the position of the end connected to the connecting portion 532 is higher. The free end of the arc-shaped side wall 534 can be provided with a buckle structure or a structure adapted to the buckle, so as to be connected with the outer side surface of the lens barrel 51 . The connecting end of the arc-shaped side wall 534 is bent outward and then extends downward to form the connecting portion 532. The connecting portion 532 is in the shape of a single-arm arc, and the free end of the connecting portion 532 also passes through The snap structure is connected with the inner side of the carrier 52 .
上述变形的实施例中,所述卡扣连接也可以被胶水连接替代,或者在卡扣连接的基础上再用胶水进行补强。In the above variant embodiment, the snap connection can also be replaced by a glue connection, or the snap connection can be reinforced with glue.
以上描述仅为本申请的较佳实施方式以及对所运用技术原理的说明。本领域技术人员应当理解,本申请中所涉及的发明范围,并不限于上述技术特征的特定组合而成的技术方案,同时也应涵盖在不脱离所述发明构思的情况下,由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of its equivalent features. For example, a technical solution is formed by replacing the above-mentioned features with the technical features disclosed in this application (but not limited to) with similar functions.
Claims (20)
- 一种用于光学致动器的镜头固定结构,其特征在于,包括:A lens fixing structure for an optical actuator, comprising:载体,其适于在所述光学致动器的驱动下进行受控移动;a carrier adapted for controlled movement driven by said optical actuator;镜筒,其内侧面适于安装镜片;以及a lens barrel, the inner side of which is suitable for mounting a lens; and弹性构件,其包括用于连接所述镜筒的固定部和用于连接所述载体的连接部;an elastic member comprising a fixing portion for connecting the lens barrel and a connecting portion for connecting the carrier;其中,所述固定部包括两个弧形侧壁,所述两个弧形侧壁分别承靠于所述镜筒两侧的外侧面,或者分别嵌入所述镜筒。Wherein, the fixing portion includes two arc-shaped side walls, and the two arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, or respectively embedded in the lens barrel.
- 根据权利要求1所述的镜头固定结构,其特征在于,所述固定部还包括一平面状的底壁,所述两个弧形侧壁与所述底壁连接成一个整体,所述两个弧形侧壁分别承靠于所述镜筒两侧的外侧面,以将所述镜筒扣合在所述两个弧形侧壁和所述底壁之间。The lens fixing structure according to claim 1, wherein the fixing part further comprises a planar bottom wall, the two arc-shaped side walls are connected with the bottom wall as a whole, and the two The arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, so as to fasten the lens barrel between the two arc-shaped side walls and the bottom wall.
- 根据权利要求2所述的镜头固定结构,其特征在于,所述弧形侧壁的底端与所述底壁连接,其顶端向外侧弯折并向下延伸形成所述的连接部。The lens fixing structure according to claim 2, wherein the bottom end of the arc-shaped side wall is connected with the bottom wall, and the top end is bent outward and extends downward to form the connecting portion.
- 根据权利要求2所述的镜头固定结构,其特征在于,所述连接部为弧形单臂,或者呈U形,或者呈多个U形所构成的蜿蜒形状。The lens fixing structure according to claim 2, wherein the connecting portion is an arc-shaped single arm, or a U-shape, or a serpentine shape formed by a plurality of U-shapes.
- 根据权利要求1所述的镜头固定结构,其特征在于,所述固定部通过嵌入式注塑工艺嵌入所述镜筒的侧壁中。The lens fixing structure according to claim 1, wherein the fixing portion is embedded in the side wall of the lens barrel through an insert injection molding process.
- 根据权利要求2所述的镜头固定结构,其特征在于,所述固定部的顶端位置高于所述镜筒的中轴位置。The lens fixing structure according to claim 2, wherein a top end position of the fixing portion is higher than a central axis position of the lens barrel.
- 根据权利要求2所述的镜头固定结构,其特征在于,所述固定部的顶端具有开口,且所述开口的宽度小于所述镜筒的外轮廓的直径。The lens fixing structure according to claim 2, wherein the top of the fixing portion has an opening, and the width of the opening is smaller than the diameter of the outer contour of the lens barrel.
- 根据权利要求1所述的镜头固定结构,其特征在于,所述两个弧形侧壁分离,并分别嵌入所述镜筒的两侧。The lens fixing structure according to claim 1, wherein the two arc-shaped side walls are separated and embedded in two sides of the lens barrel respectively.
- 根据权利要求1所述的镜头固定结构,其特征在于,所述两个弧形侧壁分离,所述两个弧形侧壁分别承靠于所述镜筒的两侧的外侧面,并且所述两个弧形侧壁的底端分别与所述镜筒通过卡扣结构连接。The lens fixing structure according to claim 1, wherein the two arc-shaped side walls are separated, the two arc-shaped side walls are respectively supported on the outer sides of the two sides of the lens barrel, and the The bottom ends of the two arc-shaped side walls are respectively connected with the lens barrel through a buckle structure.
- 根据权利要求1所述的镜头固定结构,其特征在于,所述弧形侧壁的顶端向外侧弯折并向下延伸形成所述的连接部,所述连接部的底端与所述载体的内侧面通过卡扣结构连接。The lens fixing structure according to claim 1, wherein the top end of the arc-shaped side wall is bent to the outside and extends downward to form the connecting portion, and the bottom end of the connecting portion is connected to the carrier. The inner side is connected by a snap structure.
- 根据权利要求1所述的镜头固定结构,其特征在于,所述弧形侧壁的顶端向外侧弯折并向下延伸形成所述的连接部,所述连接部的底端与所述载体的内侧面粘结。The lens fixing structure according to claim 1, wherein the top end of the arc-shaped side wall is bent to the outside and extends downward to form the connecting portion, and the bottom end of the connecting portion is connected to the carrier. bonded on the inside.
- 根据权利要求10所述的镜头固定结构,其特征在于,所述连接部的底端与所述载体的内侧面的连接通过胶水补强。The lens fixing structure according to claim 10, wherein the connection between the bottom end of the connecting portion and the inner side of the carrier is reinforced by glue.
- 根据权利要求10所述的镜头固定结构,其特征在于,所述卡扣结构为公卡扣和母卡扣。The lens fixing structure according to claim 10, wherein the buckle structure is a male buckle and a female buckle.
- 根据权利要求10所述的镜头固定结构,其特征在于,所述连接部具有端部连接件,所述载体的内侧面具有T型凸起,所述T型凸起包括一颈部和宽度大于所述颈部的端部;所述端部连接件设置一开孔,所述开孔的形状与所述T型凸起的颈部的形状匹配。The lens fixing structure according to claim 10, wherein the connecting part has an end connecting piece, the inner side of the carrier has a T-shaped protrusion, and the T-shaped protrusion includes a neck and a width greater than The end of the neck; the end connecting piece is provided with an opening, and the shape of the opening matches the shape of the neck of the T-shaped protrusion.
- 根据权利要求10所述的镜头固定结构,其特征在于,所述连接部具有端部连接件,所述端部连接件具有T型凸起,所述T型凸起包括一颈部和宽度大于所述颈部的端部;所述载体的内侧面具有一凹槽,所述T型凸起的颈部的形状与所述凹槽的形状匹配。The lens fixing structure according to claim 10, wherein the connecting part has an end connecting piece, and the end connecting piece has a T-shaped protrusion, and the T-shaped protrusion includes a neck and a width greater than The end of the neck; the inner side of the carrier has a groove, and the shape of the neck of the T-shaped protrusion matches the shape of the groove.
- 根据权利要求14或15所述的镜头固定结构,其特征在于,所述T型凸起的端部具有一倾斜的斜面,所述斜面的倾斜角度α满足90°<α<180°。The lens fixing structure according to claim 14 or 15, wherein the end of the T-shaped protrusion has an inclined slope, and the slope angle α of the slope satisfies 90°<α<180°.
- 一种摄像模组,其特征在于,包括:壳体和安装于壳体内的光路转折组件、镜头组件和感光组件;A camera module is characterized by comprising: a casing and an optical path turning assembly, a lens assembly and a photosensitive assembly installed in the casing;所述镜头组件包括根据权利要求1-16中任一项所述的用于光学致动器的镜头固定结构。The lens assembly includes the lens fixing structure for an optical actuator according to any one of claims 1-16.
- 根据权利要求17所述的摄像模组,其特征在于,所述镜头固定结构中,所述镜筒内安装多个镜片,所述镜筒包括至少一个安装所述弹性构件的适配区段,所述适配区段所安装的镜片的直径小于所述镜筒的其他区段所安装的镜片的直径。The camera module according to claim 17, wherein, in the lens fixing structure, a plurality of lenses are installed in the lens barrel, and the lens barrel includes at least one adaptation section for installing the elastic member, The diameter of the lens mounted on the adaptation section is smaller than the diameter of the lens mounted on the other sections of the lens barrel.
- 根据权利要求17所述的摄像模组,其特征在于,所述镜头固定结构中,所述镜筒内安装多个镜片,所述镜筒包括至少一个安装所述弹性构件的适配区段,所述适配区段所安装的镜片的光学敏感度高于所述镜筒的其他区段所安装的镜片的光学敏感度。The camera module according to claim 17, wherein, in the lens fixing structure, a plurality of lenses are installed in the lens barrel, and the lens barrel includes at least one adaptation section for installing the elastic member, The optical sensitivity of the lens mounted on the adaptation section is higher than the optical sensitivity of the lenses mounted on other sections of the lens barrel.
- 根据权利要求17所述的摄像模组,其特征在于,所述载体的顶侧开口;所述镜筒内安装多个镜片,其中至少一个镜片的外轮廓呈切割圆状,并且外轮廓呈切割圆状的所述镜片的一个切割边位于顶侧。The camera module according to claim 17, wherein the top side of the carrier is open; a plurality of lenses are installed in the lens barrel, wherein the outer contour of at least one lens is in the shape of a cut circle, and the outer contour is in the shape of a cut. One cut edge of the circular lens is located on the top side.
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