CN213023717U - Lens focusing device - Google Patents
Lens focusing device Download PDFInfo
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- CN213023717U CN213023717U CN202022162259.XU CN202022162259U CN213023717U CN 213023717 U CN213023717 U CN 213023717U CN 202022162259 U CN202022162259 U CN 202022162259U CN 213023717 U CN213023717 U CN 213023717U
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Abstract
The utility model discloses a camera lens focusing device, include: the device comprises a bottom plate, a rotating device fixing plate, a rotating device, a lens clamping device, a lens module supporting frame and a sliding device; the lens module supporting frame slides on the bottom plate through the sliding device; the rotating device fixing plate is vertically fixed on the bottom plate; the rotating device drives the lens clamping device to rotate, and the lens clamping device clamps the lens module. The utility model has the advantages that: jitter is not easily generated.
Description
Technical Field
The utility model relates to a camera field, concretely relates to camera lens focusing device.
Background
Focusing refers to changing the image distance v, that is, changing the distance from the optical center of the lens to the film plane. So as to obtain the regulation process of the clear image of the object. As is known, the principle of lens imaging is that the image always has a sharpest position on the screen (the negative or photosensitive element of the camera), where the light rays converge, and the myriad of points form a plane, here called the focal plane. (Focus adjustment, i.e. changing the front and back position of the focus!)
Except that some lenses of low-grade fool machines have no focusing mechanism and cannot change the image distance, all the lenses can change the image distance no matter the focus is fixed and the zoom is carried out, so that clear images can be obtained.
The traditional technology has the following technical problems:
the existing lens focusing is manual focusing, and the lens is easy to shake in the manual focusing process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a camera lens focusing device is difficult to take place the shake.
In order to solve the technical problem, the utility model provides a lens focusing device, include: the device comprises a bottom plate, a rotating device fixing plate, a rotating device, a lens clamping device, a lens module supporting frame and a sliding device; the lens module supporting frame slides on the bottom plate through the sliding device; the rotating device fixing plate is vertically fixed on the bottom plate; the rotating device drives the lens clamping device to rotate, and the lens clamping device clamps the lens module.
The utility model has the advantages that:
jitter is not easily generated.
In one embodiment, the lens module comprises a lens, a lens seat and a pcb; the lens is fixed on the lens seat; one side of the pcb board is mounted on the lens seat, and the other side of the pcb board is mounted on the lens module support frame through a pcb board support frame; the lens clamping device clamps the lens.
In one embodiment, the lens module support frame comprises a support plate, a first clamping plate and a second clamping plate; the supporting plate is fixed on the bottom plate and is vertical to the bottom plate; the first clamping plate and the second clamping plate are positioned at one end of the supporting plate far away from the bottom plate; the first clamping plate and the second clamping plate are respectively positioned at two sides of the supporting plate and are used for clamping the lens module; the support plate, the first clamping plate and the second clamping plate are arranged in an Contraband shape.
In one embodiment, the sliding device comprises a sliding block and a sliding rail; the slider is fixed the bottom of lens module support frame, the slider with slide rail sliding fit, the slide rail perpendicular to the rotary device fixed plate.
In one embodiment, the rotating device comprises a driving motor, a motor driving wheel, a transmission belt and a transmission wheel; the driving motor drives the motor driving wheel to rotate, and the motor driving wheel drives the driving wheel through the driving belt; the driving motor is fixed on the bottom plate through a motor bracket; the transmission wheel is rotatably connected with the rotating device fixing plate.
In one embodiment, the lens clamping device comprises a clamping motor fixed on the transmission wheel, a screw driven by the clamping motor and a clamping block fixed on the transmission wheel; the clamping block comprises a clamping block main body, a first clamping arm and a second clamping arm; the screw rod passes through the first clamping arm and the second clamping arm, and when the clamping motor drives the screw rod to rotate, the first clamping arm and the second clamping arm are close to or far away from each other.
In one embodiment, a transmission bearing is fixed on the rotating device fixing plate; the transmission wheel is sleeved on the transmission bearing and fixedly connected with the transmission bearing, and the inner diameter of the transmission wheel is equal to the outer diameter of the transmission bearing.
In one embodiment, the motor driving wheel is provided with driving teeth which are uniformly distributed on the circumference, the inner side of the driving belt is provided with a driving groove, and the driving wheel is provided with driving teeth which are uniformly distributed on the circumference; the driving teeth and the transmission grooves are matched with each other, and the transmission teeth and the transmission grooves are matched with each other.
In one embodiment, the cross section of the driving tooth is triangular, the cross section of the transmission groove is triangular, and the cross section of the transmission tooth is triangular; the diameter of the driving wheel is 5 to 10 times of the diameter of the motor driving wheel.
In one embodiment, the motor bracket comprises a fixed base plate and a vertical riser; the fixing bottom plate is fixedly connected with the vertical plates, the fixing bottom plate and the vertical plates are integrally formed, the fixing bottom plate and the vertical plates are in a L shape, and the thickness of the fixing bottom plate is the same as that of the vertical plates; the vertical plate is fixed with the driving motor, and the fixed bottom plate is fixed on the bottom plate.
Drawings
Fig. 1 is an exploded view of the lens focusing apparatus of the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, a lens focusing apparatus includes: a base plate 100, a rotating device fixing plate 200, a rotating device, a lens holding device, a lens module support and a sliding device; the lens module supporting frame slides on the bottom plate through the sliding device; the rotating device fixing plate is vertically fixed on the bottom plate; the rotating device drives the lens clamping device to rotate, and the lens clamping device clamps the lens module.
Specifically, the rotating device includes a driving motor 310, a motor driving wheel 320, a driving belt 330 and a driving wheel 340; the driving motor drives the motor driving wheel to rotate, and the motor driving wheel drives the driving wheel through the driving belt; the driving motor is fixed on the bottom plate through a motor bracket; the transmission wheel is rotatably connected with the rotating device fixing plate.
Specifically, the lens clamping device comprises a clamping motor 410 fixed on the driving wheel, a screw 420 driven by the clamping motor, and a clamping block fixed on the driving wheel; the clamping block comprises a clamping block body 431, a first clamping arm 432 and a second clamping arm 433; the screw rod passes through the first clamping arm and the second clamping arm, and when the clamping motor drives the screw rod to rotate, the first clamping arm and the second clamping arm are close to or far away from each other.
When the clamping motor drives the screw to rotate, the first clamping arm and the second clamping arm are close to or far away from each other, and the specific method comprises the following steps: and threaded holes with opposite spiral directions are formed in the first clamping arm or the second clamping arm, or the first clamping arm or the second clamping arm.
In order to more conveniently enable the driving wheel to be rotatably connected with the rotating device fixing plate, a driving bearing 350 is fixed on the rotating device fixing plate; the transmission wheel is sleeved on the transmission bearing and fixedly connected with the transmission bearing, and the inner diameter of the transmission wheel is equal to the outer diameter of the transmission bearing.
In order to enable the transmission of the belt pulley transmission structure to be more stable, driving teeth which are uniformly distributed on the circumference are arranged on the motor driving wheel, a transmission groove is arranged on the inner side of the transmission belt, and transmission teeth which are uniformly distributed on the circumference are arranged on the transmission wheel; the driving teeth and the transmission grooves are matched with each other, and the transmission teeth and the transmission grooves are matched with each other.
More specifically, the section of the driving tooth is triangular, the section of the transmission groove is triangular, and the section of the transmission tooth is triangular; the diameter of the driving wheel is 5 to 10 times of the diameter of the motor driving wheel.
Specifically, the motor bracket includes a fixed base plate 361 and a vertical riser 362; the fixing bottom plate is fixedly connected with the vertical plates, the fixing bottom plate and the vertical plates are integrally formed, the fixing bottom plate and the vertical plates are in a L shape, and the thickness of the fixing bottom plate is the same as that of the vertical plates; the vertical plate is fixed with the driving motor, and the fixed bottom plate is fixed on the bottom plate.
The lens module comprises a lens 510, a lens holder 520 and a pcb 530; the lens is fixed on the lens seat; one side of the pcb is mounted on the lens mount, and the other side of the pcb is mounted on the lens module support frame through a pcb support frame 540; the lens clamping device clamps the lens.
Specifically, the lens module support frame includes a support plate 610, a first clamping plate 620 and a second clamping plate 630; the supporting plate is fixed on the bottom plate and is vertical to the bottom plate; the first clamping plate and the second clamping plate are positioned at one end of the supporting plate far away from the bottom plate; the first clamping plate and the second clamping plate are respectively positioned at two sides of the supporting plate and are used for clamping the lens module; the support plate, the first clamping plate and the second clamping plate are arranged in an Contraband shape.
Specifically, the sliding device includes a slider 710 and a slide rail 720; the slider is fixed the bottom of lens module support frame, the slider with slide rail sliding fit, the slide rail perpendicular to the rotary device fixed plate.
Due to the adoption of the sliding block and the sliding rail, the sliding between the lens module and the bottom plate is smoother.
The rotating device drives the lens clamping device to rotate, and the lens clamping device clamps the lens module, so that the lens module does not need to be manually rotated for focusing, and the shaking condition is avoided during manual focusing. When the rotating device drives the lens module to rotate, the lens module can move relative to the bottom plate, and the sliding device is arranged to assist the lens module to slide on the bottom plate.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. A lens focusing apparatus, comprising: the device comprises a bottom plate, a rotating device fixing plate, a rotating device, a lens clamping device, a lens module supporting frame and a sliding device; the lens module supporting frame slides on the bottom plate through the sliding device; the rotating device fixing plate is vertically fixed on the bottom plate; the rotating device drives the lens clamping device to rotate, and the lens clamping device clamps the lens module.
2. A lens focusing apparatus according to claim 1, wherein the lens module comprises a lens, a lens mount and a pcb; the lens is fixed on the lens seat; one side of the pcb board is mounted on the lens seat, and the other side of the pcb board is mounted on the lens module support frame through a pcb board support frame; the lens clamping device clamps the lens.
3. The lens focusing apparatus of claim 1, wherein the lens module holder comprises a support plate, a first clamping plate and a second clamping plate; the supporting plate is fixed on the bottom plate and is vertical to the bottom plate; the first clamping plate and the second clamping plate are positioned at one end of the supporting plate far away from the bottom plate; the first clamping plate and the second clamping plate are respectively positioned at two sides of the supporting plate and are used for clamping the lens module; the support plate, the first clamping plate and the second clamping plate are arranged in an Contraband shape.
4. A lens focusing apparatus according to claim 1, wherein the sliding means comprises a slider and a slide rail; the slider is fixed the bottom of lens module support frame, the slider with slide rail sliding fit, the slide rail perpendicular to the rotary device fixed plate.
5. A lens focusing apparatus according to claim 1, wherein said rotating means comprises a drive motor, a motor drive wheel, a drive belt and a drive pulley; the driving motor drives the motor driving wheel to rotate, and the motor driving wheel drives the driving wheel through the driving belt; the driving motor is fixed on the bottom plate through a motor bracket; the transmission wheel is rotatably connected with the rotating device fixing plate.
6. The lens focusing apparatus of claim 5, wherein said lens holding means comprises a holding motor fixed to said driving pulley, a screw driven by said holding motor, and a holding block fixed to said driving pulley; the clamping block comprises a clamping block main body, a first clamping arm and a second clamping arm; the screw rod passes through the first clamping arm and the second clamping arm, and when the clamping motor drives the screw rod to rotate, the first clamping arm and the second clamping arm are close to or far away from each other.
7. The lens focusing apparatus of claim 5, wherein a driving bearing is fixed to the rotating means fixing plate; the transmission wheel is sleeved on the transmission bearing and fixedly connected with the transmission bearing, and the inner diameter of the transmission wheel is equal to the outer diameter of the transmission bearing.
8. A lens focusing device according to claim 5, wherein said motor driving wheel is provided with driving teeth uniformly distributed circumferentially, said driving belt is provided with driving grooves on an inner side thereof, and said driving wheel is provided with driving teeth uniformly distributed circumferentially; the driving teeth and the transmission grooves are matched with each other, and the transmission teeth and the transmission grooves are matched with each other.
9. The lens focusing apparatus of claim 8, wherein the driving teeth are triangular in cross-section, the driving grooves are triangular in cross-section, and the driving teeth are triangular in cross-section; the diameter of the driving wheel is 5 to 10 times of the diameter of the motor driving wheel.
10. The lens focusing apparatus of claim 5, wherein the motor mount comprises a fixed base plate and a vertical riser; the fixing bottom plate is fixedly connected with the vertical plates, the fixing bottom plate and the vertical plates are integrally formed, the fixing bottom plate and the vertical plates are in a L shape, and the thickness of the fixing bottom plate is the same as that of the vertical plates; the vertical plate is fixed with the driving motor, and the fixed bottom plate is fixed on the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022162259.XU CN213023717U (en) | 2020-09-27 | 2020-09-27 | Lens focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022162259.XU CN213023717U (en) | 2020-09-27 | 2020-09-27 | Lens focusing device |
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| Publication Number | Publication Date |
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| CN213023717U true CN213023717U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022162259.XU Active CN213023717U (en) | 2020-09-27 | 2020-09-27 | Lens focusing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909680A (en) * | 2021-11-11 | 2022-01-11 | 中国科学院力学研究所 | Internal rotation laser head device |
-
2020
- 2020-09-27 CN CN202022162259.XU patent/CN213023717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909680A (en) * | 2021-11-11 | 2022-01-11 | 中国科学院力学研究所 | Internal rotation laser head device |
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