CN114217406B - Lens focusing mechanism, projection module and electronic equipment - Google Patents
Lens focusing mechanism, projection module and electronic equipment Download PDFInfo
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- CN114217406B CN114217406B CN202111445764.8A CN202111445764A CN114217406B CN 114217406 B CN114217406 B CN 114217406B CN 202111445764 A CN202111445764 A CN 202111445764A CN 114217406 B CN114217406 B CN 114217406B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000009471 action Effects 0.000 claims abstract description 11
- 230000000670 limiting effect Effects 0.000 claims description 72
- 238000009434 installation Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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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
- 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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- Optics & Photonics (AREA)
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Abstract
The invention discloses a lens focusing mechanism, a projection module and electronic equipment. The lens focusing mechanism comprises a lens, a fixed sleeve, a movable sleeve and a transmission assembly; the lens comprises a lens barrel and a lens arranged in the lens barrel; the fixing sleeve is sleeved outside the lens barrel and is provided with external threads; the movable sleeve is sleeved outside the fixed sleeve, the movable sleeve is provided with an internal thread, and the movable sleeve is in threaded connection with the fixed sleeve; the transmission component is in driving connection with the movable sleeve and the lens cone; the movable sleeve can rotate under the action of external force to axially move relative to the fixed sleeve so as to drive the transmission assembly to drive the lens to axially move. According to the technical scheme of the lens focusing mechanism, the movable sleeve is in threaded connection with the fixed sleeve, so that a user can achieve the purpose of focusing only by rotating the movable sleeve, focusing operation is simplified, and focusing efficiency is improved.
Description
Technical Field
The present invention relates to the field of optical technologies, and in particular, to a lens focusing mechanism, a projection module, and an electronic device.
Background
With the development of technology, electronic imaging devices are display devices for generating pictures, and have been widely used in various scenes, such as AR, VR, and projectors, and are increasingly favored.
For equipment such as AR, VR, projecting apparatus, the camera lens in its core subassembly ray apparatus module often has the focusing demand, in traditional focusing mode, is perhaps applicable to the automatic focusing that needs once only to adjust the camera lens in order to find the ray apparatus product of best focusing distance, but this mode needs to develop automatic calibration equipment, and its price is expensive, when the total quantity of product development is not high, leads to the product unit price to rise obviously. Or the manual focusing mode which needs to adjust the position of the lens according to the change of the use environment, but the current manual focusing mode has the disadvantages of complex operation, long time and low focusing efficiency.
Disclosure of Invention
The invention mainly aims to provide a lens focusing mechanism, which aims to simplify the structure of the focusing mechanism, facilitate focusing of a user and improve focusing efficiency.
In order to achieve the above object, a lens focusing mechanism according to the present invention includes:
a lens including a barrel and a lens mounted within the barrel;
the fixing sleeve is sleeved outside the lens barrel and is provided with external threads;
the movable sleeve is sleeved outside the fixed sleeve, the movable sleeve is provided with an internal thread, and the movable sleeve is in threaded connection with the fixed sleeve; and
the transmission assembly is in driving connection with the movable sleeve and the lens cone;
the movable sleeve can rotate under the action of external force so as to axially move relative to the fixed sleeve, so that the transmission assembly is driven to drive the lens to axially move.
In one embodiment of the present invention, the transmission assembly includes:
the first limiting part is arranged on the inner wall of the movable sleeve, and the first limiting part and the end part of the fixed sleeve are arranged at intervals to form an installation space;
the second limiting part is arranged on the outer wall of the lens barrel and positioned in the installation space, and is propped against the first limiting part; and
the elastic piece is connected between the second limiting part and the fixed sleeve.
In an embodiment of the invention, the elastic member is a compression spring.
In one embodiment of the present invention, the compression spring is sleeved on the outer circumference of the lens barrel.
In an embodiment of the present invention, the first limiting portion is an annular boss structure protruding inward from an inner wall of the movable sleeve;
and/or, the second limiting part is an annular boss structure which is outwards protruded from the outer wall of the lens cone.
In an embodiment of the present invention, in a radial direction, an end of the first limiting portion abuts against an outer wall of the lens barrel;
and/or, in the radial direction, the end part of the second limiting part is abutted with the inner wall of the movable sleeve.
In one embodiment of the invention, the transmission assembly comprises a limit boss and an annular groove, wherein the central axis of the annular groove is collinear with the central axis of the lens barrel, and the limit boss extends into the annular groove and can slide along the circumferential direction of the annular groove;
one of the limit boss and the annular groove is arranged on the inner wall of the movable sleeve, and the other one of the limit boss and the annular groove is arranged on the outer wall of the lens cone.
In an embodiment of the invention, the fixed sleeve is a lens barrel sleeve fixedly connected with the optical machine, and the movable sleeve is a nut sleeved outside the lens barrel sleeve.
In an embodiment of the present invention, an axially extending guide rail is disposed on an outer wall of the lens barrel, and a chute is disposed on an inner wall of the fixing sleeve, and the guide rail is slidably engaged with the chute.
In order to achieve the above objective, the present invention further provides a projection module, including an optical machine and the lens focusing mechanism; wherein the fixed sleeve is fixedly connected with the optical machine; light emitted by the optical machine is emitted out through the lens. This camera lens focusing mechanism includes:
a lens including a barrel and a lens mounted within the barrel;
the fixing sleeve is sleeved outside the lens barrel and is provided with external threads;
the movable sleeve is sleeved outside the fixed sleeve, the movable sleeve is provided with an internal thread, and the movable sleeve is in threaded connection with the fixed sleeve; and
the transmission assembly is in driving connection with the movable sleeve and the lens cone;
the movable sleeve can rotate under the action of external force so as to axially move relative to the fixed sleeve, so that the transmission assembly is driven to drive the lens to axially move.
In order to achieve the above object, the present invention further provides an electronic device, including the above projection module.
In the lens focusing mechanism of the technical scheme of the invention, a lens is arranged in a lens barrel, a fixed sleeve is sleeved outside the lens barrel, an external thread is arranged on the fixed sleeve, a movable sleeve is sleeved outside the fixed sleeve, the movable sleeve is provided with an internal thread, the movable sleeve is in threaded connection with the fixed sleeve, and a transmission assembly is in driving connection between the movable sleeve and the lens barrel, so that the movable sleeve can rotate under the action of external force to axially move relative to the fixed sleeve, and the transmission assembly can be driven to drive the lens to axially move, thereby achieving the effect of adjusting the focal length of the lens. In the embodiment, the movable sleeve is in threaded connection with the fixed sleeve, so that a user can achieve the purpose of focusing only by rotating the movable sleeve, focusing operation is simplified, and focusing efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of a lens focusing mechanism according to the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Lens | 200 | Fixing sleeve |
| 110 | Lens barrel | 300 | Movable sleeve |
| 111 | Second limit part | 310 | First limit part |
| 120 | Lens | 400 | Elastic piece |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a lens focusing mechanism, which aims to focus in a mechanical thread rotation mode, simplifies focusing operation and improves focusing efficiency. It can be appreciated that the lens focusing mechanism of the present embodiment can be applied to a plurality of different types of projection modules, such as a projection module in a projector, a projection module in an AR device, or a projection module in a VR device.
In an embodiment of the present invention, as shown in fig. 1, the lens focusing mechanism includes a lens 100, a fixed sleeve 200, a movable sleeve 300, and a transmission assembly (not shown).
The lens 100 includes a barrel 110 and a lens 120 mounted in the barrel 110;
the fixing sleeve 200 is sleeved outside the lens barrel 110, and the fixing sleeve 200 is provided with external threads;
the movable sleeve 300 is sleeved outside the fixed sleeve 200, the movable sleeve 300 is provided with internal threads, and the movable sleeve 300 is in threaded connection with the fixed sleeve 200;
the transmission component is in driving connection with the movable sleeve 300 and the lens cone 110;
the movable sleeve 300 can rotate under the action of external force to axially move relative to the fixed sleeve 200, so as to drive the transmission assembly to drive the lens 100 to axially move.
In the present embodiment, the lens barrel 110 has the function of mounting and fixing the lens 120, and the lens 120 is mounted in the lens barrel 110, and when the lens barrel 110 moves axially, the lens 120 can be driven to move axially together, so as to achieve the purpose of focusing the focal length of the lens 100. The fixed sleeve 200 is sleeved outside the lens barrel 110, the movable sleeve 300 is sleeved outside the fixed sleeve 200, the movable sleeve 300 is provided with internal threads, the fixed sleeve 200 is provided with external threads, the movable sleeve 300 is in threaded connection with the fixed sleeve 200 through the internal threads, and when the movable sleeve 300 is rotated, the movable sleeve 300 can axially move relative to the fixed sleeve 200. The transmission assembly drives and connects the movable sleeve 300 and the lens barrel 110, so that the movable sleeve 300 can drive the lens barrel 110 to move in the axial direction, thereby realizing the function of adjusting the focal length.
It can be understood that when the lens focusing mechanism is applied to the projection module, the fixed sleeve 200 is fixedly connected with the optical machine in the projection module, the movable sleeve 300 is in threaded connection with the fixed sleeve 200, and the lens barrel 110 is disposed in the fixed sleeve 200, so that the movable sleeve 300 and the fixed sleeve 200 can limit the radial direction of the lens barrel 100, thereby achieving the purpose of mounting the lens 100 and the optical machine. In practical application, the fixing sleeve 200 is a barrel sleeve for mounting the lens barrel 110, the movable sleeve 300 is a nut structure sleeved outside the barrel sleeve, and the user only needs to rotate the nut (i.e. the movable sleeve 300) through threaded fit of the nut and the barrel sleeve, so that the lens barrel 110 can be driven to axially move through the transmission assembly, and the focusing purpose is further achieved.
The specific structure of the transmission assembly may be determined according to practical situations, alternatively, the transmission assembly may be a stop lever and an annular groove structure respectively disposed on the movable sleeve 300 and the lens barrel 110, so as to realize the function of radially and axially moving the lens barrel 110 when the movable sleeve 300 rotates. Alternatively, the transmission assembly may also be a structure of a limiting boss and a connecting piece (such as an elastic piece) respectively disposed on the movable sleeve 300 and the lens barrel 110, and the function of driving the lens barrel 110 to move axially can be realized through the connecting piece. Alternatively, the transmission assembly may be a separate driving structure, and the axial movement function of the lens barrel 110 is directly implemented through the driving structure.
Optionally, an axially extending guide rail (not shown) is provided on the outer wall of the lens barrel 110, and a sliding groove is provided on the inner wall of the fixing sleeve 300, and the guide rail is slidably matched with the sliding groove. The sliding movement of the lens barrel 110 and the fixed sleeve 300 is more stable and reliable by the cooperation of the guide rail and the sliding groove.
In the lens focusing mechanism of the technical scheme of the invention, a lens 120 is arranged in a lens barrel 110, a fixed sleeve 200 is sleeved outside the lens barrel 110, an external thread is arranged on the fixed sleeve 200, a movable sleeve 300 is sleeved outside the fixed sleeve 200, the movable sleeve 300 is provided with an internal thread, the movable sleeve 300 is in threaded connection with the fixed sleeve 200, and a transmission assembly is in driving connection between the movable sleeve 300 and the lens barrel 110, so that the movable sleeve 300 can rotate under the action of external force to axially move relative to the fixed sleeve 200, and the transmission assembly can be driven to drive the lens 100 to axially move, thereby achieving the effect of adjusting the focal length of the lens 100. In this embodiment, through the threaded connection between the movable sleeve 300 and the fixed sleeve 200, the user can achieve the focusing purpose by only rotating the movable sleeve 300, so as to simplify the focusing operation and improve the focusing efficiency.
In an embodiment of the present invention, referring to fig. 1, the transmission assembly includes a first limiting portion 310, a second limiting portion 111, and an elastic member 400; the first limiting part 310 is arranged on the inner wall of the movable sleeve 300, and the first limiting part 310 and the end part of the fixed sleeve 200 are arranged at intervals to form an installation space; the second limiting part 111 is arranged on the outer wall of the lens barrel 110 and is positioned in the installation space, and the second limiting part 111 is abutted against the first limiting part 310; the elastic member 400 is connected between the second limiting portion 111 and the fixing sleeve 200.
In this embodiment, the first limiting portion 310 is a limiting structure with an inner wall of the movable sleeve 300 protruding inwards, the second limiting portion 111 is a limiting structure with an outer wall of the lens barrel 110 protruding outwards, and the first limiting portion 310 and one side of the second limiting portion 111, which is away from the fixed sleeve 200, are propped against each other, so that a limiting effect is achieved when the lens barrel 110 moves to an axial target position. The first limiting portion 310 is spaced from the end portion of the fixed sleeve 200 to form an installation space, and it can be appreciated that when the movable sleeve 300 rotates relative to the fixed sleeve 200 and is axially displaced, the axial stroke in the installation space can be changed. The elastic piece 400 is arranged between the second limiting part 111 and the fixed sleeve 200, so that when the first limiting part 310 moves axially under the action of the movable sleeve 300, the size of the installation space is changed, and at the moment, the second limiting part 111 can move axially under the action of the elastic force of the elastic piece 400, thereby driving the lens cone 110 to move axially and achieving the purpose of focusing.
It can be understood that the first limiting portion 310 is located at one side of the second limiting portion 111 away from the installation space, the elastic member 400 is in a compressed state in the initial state, when the movable sleeve 300 is rotated to make the first limiting portion 310 move towards a direction away from the fixed seat 200, the abutting action on the second limiting portion 111 is released, at this time, the elastic member 400 resumes deformation to generate a pushing force on the second limiting portion 111 so as to push the second limiting portion 111 to move towards the first limiting portion 310 until the second limiting portion and the first limiting portion abut against each other, thereby realizing a movement function of the lens 100 towards a direction away from the fixed sleeve 200; when the movable sleeve 300 is rotated to enable the first limiting part 310 to move towards the direction of the fixed seat 200, the first limiting part 310 pushes the second limiting part 111 to move towards the direction of the fixed seat 200, so that the movement function of the lens 100 towards the direction of the fixed sleeve 200 is realized.
In practical applications, the elastic member 400 may be selected from a compression spring, a spring plate structure, and the like. In this embodiment, the elastic member 400 employs a compression spring in consideration of the installation difficulty and the process cost. Alternatively, the compression springs may be a plurality of uniformly distributed in the installation space. Alternatively, the compression spring may be sleeved on the outer circumference of the lens barrel 110. In the present embodiment, the compression spring is sleeved on the outer circumference of the lens barrel 110 in consideration of the convenience of installation, so that the lens barrel 110 is more stable and reliable during movement.
In an embodiment of the present invention, referring to fig. 1, the first limiting portion 310 is an annular boss structure protruding inward from an inner wall of the movable sleeve 300; and/or, the second limiting portion 111 is an annular boss structure protruding outwards from the outer wall of the lens barrel 1110.
It can be appreciated that the first limiting portion 310 is provided as an annular boss structure, increasing the limiting area. The second limiting part 111 is provided as an annular boss structure, which increases the limiting area, and simultaneously increases the contact area of the second limiting part 111 and the elastic member 400, thereby making the movement of the lens barrel 110 more stable.
In this embodiment, the first limiting portion 310 and the second limiting portion 111 are both set to be annular boss structures, so that the contact area between the first limiting portion 310 and the second limiting portion 111 is increased, and the movement of the first limiting portion and the second limiting portion is more stable.
In an embodiment of the present invention, referring to fig. 1, in a radial direction, an end of the first limiting portion 310 abuts against an outer wall of the lens barrel 110; and/or, in the radial direction, an end of the second limiting portion 111 abuts against an inner wall of the movable sleeve 300.
It can be appreciated that, by abutting the end of the first limiting portion 310 against the outer wall of the lens barrel 110 in the radial direction, the mating area of the movable sleeve 300 and the lens barrel 110 is further increased, so that the connection structure of the two is more reliable.
By abutting the end of the second limiting portion 111 against the inner wall of the movable sleeve 300 in the radial direction, the limiting effect of the movable sleeve 300 on the lens barrel 110 in the radial direction is ensured, so that the axial movement of the lens barrel 110 is more stable.
In an embodiment of the present invention, the transmission assembly includes a limit boss (not shown) and an annular groove (not shown), the central axis of the annular groove is collinear with the central axis of the lens barrel 110, and the limit boss extends into the annular groove and can slide along the circumferential direction of the annular groove;
one of the limiting boss and the annular groove is disposed on the inner wall of the movable sleeve 300, and the other is disposed on the outer wall of the lens barrel 110.
It can be understood that a limit boss is disposed on the inner wall of the movable sleeve 300, and an annular groove is disposed on the outer wall of the lens barrel 110, and the limit boss extends into the annular groove, so that when the movable sleeve 300 rotates relative to the fixed sleeve 200 to axially displace, the limit boss can be driven to rotate in the annular groove and drive the lens barrel 110 to axially move, thereby realizing the focusing function of the lens 100.
Similarly, an annular groove is formed in the inner wall of the movable sleeve 300, a limiting boss is arranged on the outer wall of the lens barrel 110 and extends into the annular groove, so that when the movable sleeve 300 rotates relative to the fixed sleeve 200 to axially displace, the annular groove can be driven to rotate relative to the limiting boss, and axial limiting action of the annular groove and the limiting boss is achieved, so that the lens barrel 110 is driven to axially move, and the focusing purpose of the lens 100 is achieved.
The invention also provides a projection module, which comprises an optical machine and a lens focusing mechanism, wherein the specific structure of the lens focusing mechanism refers to the embodiment, and the projection module at least has all the beneficial effects brought by the technical scheme of the embodiment because the projection module adopts all the technical schemes of all the embodiments, and the detailed description is omitted. Wherein, the fixing sleeve 200 is fixedly connected with the optical machine; the light emitted by the light engine is emitted through the lens 120.
It can be understood that the fixing sleeve 200 is equivalent to a lens barrel sleeve for installing the lens barrel 110, and the fixing sleeve 200 is fixedly connected with the optical machine, so as to realize the installation of the lens barrel 110 and the optical machine, and further realize the installation function of the lens 100 and the optical machine, thereby ensuring that the light emitted by the optical machine can be emitted through the lens 120 to achieve the purpose of imaging.
The fixed sleeve 200 is provided with external threads, the movable sleeve 300 is sleeved outside the fixed sleeve 200, the movable sleeve 300 is provided with internal threads (corresponding to nuts), the movable sleeve 300 is in threaded connection with the fixed sleeve 200, and a transmission component is in driving connection between the movable sleeve 300 and the lens barrel 110, so that the movable sleeve 300 can rotate under the action of external force to axially move relative to the fixed sleeve 200, and the transmission component can be driven to drive the lens 100 to axially move, so that the effect of adjusting the focal length of the lens 100 is achieved. In this embodiment, through the threaded connection between the movable sleeve 300 and the fixed sleeve 200, the user can achieve the focusing purpose by only rotating the movable sleeve 300, so as to simplify the focusing operation and improve the focusing efficiency.
The invention also provides electronic equipment, which comprises a projection module, wherein the specific structure of the projection module refers to the embodiment, and because the electronic equipment adopts all the technical schemes of all the embodiments, the electronic equipment at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted. Alternatively, the electronic device may be an AR device, VR device, projector, or the like.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. A lens focus adjustment mechanism, comprising:
a lens including a barrel and a lens mounted within the barrel;
the fixing sleeve is sleeved outside the lens barrel and is provided with external threads;
the movable sleeve is sleeved outside the fixed sleeve, the movable sleeve is provided with an internal thread, and the movable sleeve is in threaded connection with the fixed sleeve; and
the transmission assembly is in driving connection with the movable sleeve and the lens cone;
the movable sleeve can rotate under the action of external force to axially move relative to the fixed sleeve so as to drive the transmission assembly to drive the lens to axially move;
the transmission assembly includes:
the first limiting part is arranged on the inner wall of the movable sleeve, and the first limiting part and the end part of the fixed sleeve are arranged at intervals to form an installation space;
the second limiting part is arranged on the outer wall of the lens barrel and positioned in the installation space, and is propped against the first limiting part; and
the elastic piece is a compression spring sleeved on the periphery of the lens barrel, and the compression spring is arranged in the installation space and is connected between the second limiting part and the fixed sleeve;
the outer wall of the lens cone is provided with an axially extending guide rail, the inner wall of the fixing sleeve is provided with a sliding groove, and the guide rail is in sliding fit with the sliding groove.
2. The lens focusing mechanism of claim 1, wherein the first limiting part is an annular boss structure protruding inwards from the inner wall of the movable sleeve;
and/or, the second limiting part is an annular boss structure which is outwards protruded from the outer wall of the lens cone.
3. The lens focusing mechanism according to claim 1, wherein an end of the first stopper abuts against an outer wall of the lens barrel in a radial direction;
and/or, in the radial direction, the end part of the second limiting part is abutted with the inner wall of the movable sleeve.
4. The lens focusing mechanism according to claim 1, wherein the transmission assembly comprises a limit boss and an annular groove, the central axis of the annular groove is collinear with the central axis of the lens barrel, and the limit boss extends into the annular groove and can slide along the circumferential direction of the annular groove;
one of the limit boss and the annular groove is arranged on the inner wall of the movable sleeve, and the other one of the limit boss and the annular groove is arranged on the outer wall of the lens cone.
5. The lens focusing mechanism according to any one of claims 1 to 4, wherein the fixed sleeve is a lens barrel sleeve fixedly connected to the optical machine, and the movable sleeve is a nut sleeved outside the lens barrel sleeve.
6. A projection module comprising a light engine and the lens focusing mechanism according to any one of claims 1 to 5; wherein the fixed sleeve is fixedly connected with the optical machine; light emitted by the optical machine is emitted out through the lens.
7. An electronic device comprising the projection module of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445764.8A CN114217406B (en) | 2021-11-30 | 2021-11-30 | Lens focusing mechanism, projection module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445764.8A CN114217406B (en) | 2021-11-30 | 2021-11-30 | Lens focusing mechanism, projection module and electronic equipment |
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| Publication Number | Publication Date |
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| CN114217406A CN114217406A (en) | 2022-03-22 |
| CN114217406B true CN114217406B (en) | 2024-02-09 |
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| CN202111445764.8A Active CN114217406B (en) | 2021-11-30 | 2021-11-30 | Lens focusing mechanism, projection module and electronic equipment |
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| CN115047691B (en) * | 2022-05-30 | 2023-08-04 | 歌尔光学科技有限公司 | Lens module and electronic equipment |
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| TWM313791U (en) * | 2006-12-01 | 2007-06-11 | Genius Electronic Optical Co Ltd | Fine tune mechanism of zoom lens |
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| Publication number | Publication date |
|---|---|
| CN114217406A (en) | 2022-03-22 |
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