CN218728283U

CN218728283U - Lens mechanism capable of manually focusing

Info

Publication number: CN218728283U
Application number: CN202222889767.7U
Authority: CN
Inventors: 陈竹均
Original assignee: Gaodi Digital Qingdao Co Ltd
Current assignee: Gaodi Digital Qingdao Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-24
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to a lens mechanism that can manual focusing, include: a photosensitive chip; the optical lens is configured above the photosensitive chip; the lens mount is fixed and is in threaded connection with the optical lens; the inner cylinder is provided with an accommodating space, and the photosensitive chip, the optical lens and the lens mount are arranged in the accommodating space; the transmission seat is fixedly connected or in transmission connection with the optical lens; the outer cylinder is rotatably sleeved outside the inner cylinder and drives the transmission seat to rotate so as to drive the optical lens to rotate, so that the optical lens is close to or far away from the photosensitive chip through the threaded fit with the lens seat; the inner barrel, the transmission seat and the outer barrel are provided with lens holes for shooting and collecting the optical lens.

Description

Lens mechanism capable of manually focusing

Technical Field

The utility model relates to a technical field that makes a video recording especially relates to a camera lens mechanism that can manual focusing.

Background

The camera generally needs to focus to enable a picture to meet requirements, an existing focusing mechanism generally comprises automatic focusing and manual focusing, and the automatic focusing and the manual focusing respectively meet the requirements of different people for use. However, the existing manual focusing mechanism is complex, occupies a large space, and is not beneficial to the miniaturization of the camera.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a lens mechanism that can be manually focused with a simple structure and a small space.

In order to solve the technical problem, the utility model discloses a technical scheme be: a lens mechanism that can be manually focused, comprising:

a photosensitive chip;

the optical lens is configured above the photosensitive chip;

the lens mount is fixed and is in threaded connection with the optical lens;

the inner cylinder is provided with an accommodating space, and the photosensitive chip, the optical lens and the lens mount are arranged in the accommodating space;

the transmission seat is fixedly connected or in transmission connection with the optical lens;

the outer cylinder is rotatably sleeved outside the inner cylinder and drives the transmission seat to rotate so as to drive the optical lens to rotate, so that the optical lens is close to or far away from the photosensitive chip through the threaded fit with the lens seat;

the inner barrel, the transmission seat and the outer barrel are provided with lens holes for shooting and collecting the optical lens.

Furthermore, a limiting part is further arranged in the inner cylinder, the limiting part rotates along with the optical lens, a first blocking part is arranged in the inner cylinder, and the limiting part is provided with a second blocking part which is matched with the first blocking part to limit the rotation angle of the limiting part.

Furthermore, a limiting part is further arranged in the inner cylinder, the limiting part rotates along with the optical lens, a first positioning part is arranged in the inner cylinder, a second positioning part is arranged on the limiting part, one of the first positioning part and the second positioning part is a positioning concave point, and the other one of the first positioning part and the second positioning part is a positioning convex point matched with the positioning concave point.

Further, the first positioning portion and the second positioning portion cooperate to determine a hyperfocal distance point of the lens.

Further, be equipped with the ladder groove in the driving seat, the ladder groove is followed supreme internal diameter grow gradually and is formed and leak hopper-shaped down.

Furthermore, the optical lens is provided with an outer gear ring, and the transmission seat is provided with an inner gear ring in transmission engagement with the outer gear ring.

Furthermore, a plurality of resistance increasing rings are arranged between the inner cylinder and the outer cylinder.

Furthermore, the outer sleeve is sleeved with an anti-slip sleeve.

Furthermore, the end part of the outer cylinder is also connected with a protective lens.

Furthermore, the end part of the outer cylinder is provided with an external thread part, and the external thread part is used for being in threaded connection with an external conversion piece.

The beneficial effects of the utility model reside in that: the urceolus rotates during the use, and the urceolus drives the transmission seat and rotates, and the transmission seat drives optical lens and rotates, thereby optical lens through with the lens mount between the screw-thread fit with rotate and convert axial displacement into and be close to or keep away from sensitization chip to reach the purpose of focusing. The whole structure is simple, the adopted structure is a cylindrical or cylinder-like structure, the occupied space is small, and the operation is convenient.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a transmission seat of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another direction of a transmission seat of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an outer barrel of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a limiting member of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an internal structure of an inner barrel of a lens mechanism capable of manually focusing according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a partially enlarged structure of a first positioning point of a lens mechanism capable of manually focusing according to an embodiment of the present invention.

Description of reference numerals:

100. a photosensitive chip; 110. a PCB board; 200. an optical lens; 210. an outer ring gear;

300. a lens mount; 400. an inner barrel; 410. an extended barrel wall; 411. a first blocking portion;

412. a first positioning portion; 4121. positioning the concave points; 4122. a raised portion; 420. a resistance increasing ring;

500. a transmission seat; 510. an inner gear ring; 520. a stepped groove; 530. a first outer ring; 531. a connecting portion;

540. a second outer ring; 550. a third outer ring; 600. an outer cylinder; 610. a stepped ring plate;

611. protecting the lens; 620. an external threaded portion; 700. a limiting member; 710. a second blocking portion;

711. a second positioning portion; 800. an anti-slip sleeve; 900. is externally connected with a conversion piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, with reference to the accompanying drawings and embodiments, is a detailed description of the lens mechanism capable of manually focusing according to the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 8, a lens mechanism capable of manually focusing includes:

a photosensitive chip 100;

an optical lens 200 disposed above the photosensitive chip 100;

the lens mount 300, the lens mount 300 is fixed, and with the optical lens 200 threaded connection;

an inner cylinder 400 having an accommodation space in which the photosensitive chip 100, the optical lens 200, and the lens mount 300 are disposed;

the transmission seat 500 is fixedly connected or in transmission connection with the optical lens 200;

the outer cylinder 600 is rotatably sleeved outside the inner cylinder 400 and drives the transmission seat 500 to rotate, so that the transmission seat 500 and the optical lens 200 are sequentially driven to rotate, and the optical lens 200 is close to or far away from the photosensitive chip 100 through the threaded fit with the lens seat 300;

the inner cylinder 400, the transmission seat 500 and the outer cylinder 600 are provided with lens holes for shooting and collecting the optical lens 200.

When the focusing device is used, the outer barrel 600 is rotated, the outer barrel 600 drives the transmission seat 500 to rotate, the transmission seat 500 drives the optical lens 200 to rotate, and the optical lens 200 rotates and is converted into axial movement through the threaded fit between the optical lens 200 and the lens seat 300 so as to be close to or far away from the photosensitive chip 100, so that the focusing purpose is achieved. The whole structure is simple, the adopted structure is a cylindrical or cylinder-like structure, the occupied space is small, and the operation is convenient.

Referring to fig. 1, 2, 6 and 7, a limiting member 700 is further disposed in the inner cylinder 400, the limiting member 700 rotates with the optical lens 200, a first blocking portion 411 is disposed in the inner cylinder 400, and the limiting member 700 has a second blocking portion 710 cooperating with the first blocking portion 411 to limit a rotation angle of the limiting member 700. Simply, the limiting member 700 may be fixedly connected to the transmission base 500 or the optical lens 200, so as to achieve the purpose of rotating with the optical lens 200. By limiting the rotation angle by the first blocking portion 411 and the second blocking portion 710, the failure of the threaded connection between the optical lens 200 and the lens mount 300 caused by excessive rotation is avoided, and meanwhile, the focusing range can be set as required.

Referring to fig. 1, fig. 2, fig. 6 to fig. 8, a limiting member 700 is further disposed in the inner tube 400, the limiting member 700 rotates with the optical lens 200, a first positioning portion is disposed in the inner tube 400, the limiting member 700 has a second positioning portion 711, one of the first positioning portion and the second positioning portion 711 is a positioning concave point 4121, and the other is a positioning convex point matching with the positioning concave point 4121. The first positioning portion and the second positioning portion 711 are arranged, one or more preset focal lengths can be preset, when the preset focal lengths are rotated, the first positioning portion and the second positioning portion 711 are matched, a user can feel obvious clamping feeling, and therefore the multifunctional card is convenient to use. It can be understood that if a plurality of preset focal lengths need to be set, only one of the first positioning portion and the second positioning portion 711 needs to be set to a corresponding plurality. It will be appreciated that to facilitate sliding the locating hump into and out of the locating valley 4121, the locating hump is generally arcuate and the locating valley 4121 is generally arcuate. In particular, in order to improve the hand feeling, the protruding portions 4122 may be provided at both sides of the positioning concave 4121, and it is understood that both sides of the protruding portions 4122, i.e., the sliding-in and sliding-out directions of the positioning convex may be provided with corresponding transition slopes or transition arcs.

Referring to fig. 1, 2 and 7, an end surface ring plate is provided at an end portion of the inner cylinder 400, the end surface ring plate extends downward to form an extension cylinder wall 410, and the first blocking portion 411 and the first positioning portion are disposed on an inner wall of the extension cylinder wall 410. It can be understood that the first blocking portion 411 and the first positioning portion are horizontally convex. Specifically, the first positioning portion is provided on the first barrier 411.

Preferably, the first positioning portion and the second positioning portion 711 cooperate to determine a hyperfocal distance of the lens.

Referring to fig. 1 and 3, a stepped groove 520 is formed in the driving seat 500, and an inner diameter of the stepped groove 520 gradually increases from bottom to top to form a funnel shape. It will be appreciated that the minimum inner diameter of the stepped recess 520 should be greater than or equal to the maximum lens aperture diameter of the lens. The light can enter conveniently, and the light is in butt joint with the funnel-shaped lens hole of the optical lens 200, so that the funnel-shaped lens hole is prolonged, and the image pickup effect is improved.

Referring to fig. 2-4, the optical lens 200 has an outer gear ring 210, and the transmission base 500 has an inner gear ring 510 engaged with the outer gear ring 210. The gear transmission meshing structure is compact, the installation is convenient, and the miniaturization is facilitated. Generally, the ring gear 510 is disposed below the stepped groove 520.

Referring to fig. 1 and 2, a plurality of resistance increasing rings 420 are disposed between the inner cylinder 400 and the outer cylinder 600. The resistance increasing ring 420 is arranged, resistance is improved, hand feeling is improved, accuracy in adjustment is improved, and a user can obtain a proper focal length better. Simply, a plurality of ring grooves are arranged on the inner cylinder 400, and the resistance increasing rings 420 are arranged in the ring grooves, so that the axial movement of the resistance increasing rings 420 is avoided, and the consistency of hand feeling is ensured. It is understood that the resistance-increasing ring 420 is made of a flexible material, and is generally made of rubber, silicon, or the like.

Referring to fig. 1 and 2, an anti-slip cover 800 is sleeved outside the outer cylinder 600. A protection sleeve is provided to facilitate the user to rotate the outer tub 600. Simply, the anti-slip cover 800 wraps the outer cylinder 600 by means of elasticity.

Referring to fig. 1 and 2, a protective lens 611 is further connected to an end of the outer tube 600. A protection lens 611 is provided to protect the optical lens 200 from dust, and in particular, the protection lens 611 may also be a lens having an optical effect as required.

Referring to fig. 1 and 2, an end of the outer cylinder 600 is provided with an external thread part 620, and the external thread part 620 is used for being screwed with the external adaptor 900. The external thread is arranged for connecting an external conversion piece, so that a user can conveniently connect external devices such as a protective cover, a lens or equipment and the like according to needs.

Referring to fig. 3 and 4, the transmission base 500 includes a first outer ring 530, a second outer ring 540 and a third outer ring 550 from top to bottom, the third outer ring 550 extends into the inner cylinder 400, the second outer ring 540 abuts against the end surface of the inner cylinder 400, and the first outer ring 530 is provided with a connecting portion 531 fixedly connected with the outer cylinder 600. Preferably, in order to reduce friction between the second outer ring 540 and the end surface of the inner tube 400, an annular protrusion abutting against the second outer ring 540 may be provided on the end surface of the inner tube 400 to reduce a contact surface. Specifically, a stepped ring plate 610 is arranged in the outer cylinder 600, and the stepped ring plate 610 is connected with the connecting part 531 through screws; in particular, the protective lens 611 may be adhered within a groove formed in the stepped ring plate 610.

It is understood that the lens holder 300, the photosensitive chip 100 and the inner cylinder 400 do not rotate with the rotation of the optical lens 200. Specifically, the photosensitive chip 100 is integrated or fixed on the PCB 110, the lens holder 300 is fixedly connected to the PCB 110, and the PCB 110 is fixedly connected to the housing of the camera, the parts inside the housing, or the inner barrel 400. In particular, the inner barrel 400 is integrally or monolithically connected to the housing/portion of the housing of the camera. Generally, the lens holder 300 is disposed outside the optical lens 200, that is, the optical lens 200 is provided with an external thread section, and the lens holder 300 is provided with an internal thread section matched with the external thread section.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "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 relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

To sum up, the utility model provides a pair of camera lens mechanism that can manual focusing rotates the urceolus during use, and the urceolus drives the mount and rotates, and the mount drives optical lens and rotates, thereby optical lens will rotate to convert axial displacement to be close to or keep away from sensitization chip through and the screw-thread fit between the lens mount to reach the purpose of focusing. The whole structure is simple, the adopted structure is a cylindrical or cylinder-like structure, the occupied space is small, and the operation is convenient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make modifications or changes to equivalent embodiments with equivalent changes when using the technical contents disclosed above without departing from the technical scope of the present invention, and any simple modifications, equivalent changes and modifications made to the above embodiments by the technical matters of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A lens mechanism that can be manually focused, comprising:

a photosensitive chip;

the optical lens is configured above the photosensitive chip;

the lens mount is fixed and is in threaded connection with the optical lens;

2. A lens mechanism according to claim 1, wherein a limiting member is further disposed in the inner tube, the limiting member rotates with the optical lens, a first blocking portion is disposed in the inner tube, and the limiting member has a second blocking portion cooperating with the first blocking portion to limit a rotation angle of the limiting member.

3. A lens mechanism according to claim 1, wherein a limiting member is further disposed in the inner tube, the limiting member rotates with the optical lens, a first positioning portion is disposed in the inner tube, the limiting member has a second positioning portion, one of the first positioning portion and the second positioning portion is a positioning concave point, and the other is a positioning convex point engaged with the positioning concave point.

4. A lens mechanism according to claim 3, wherein the first and second positioning portions cooperate to define a hyperfocal distance of the lens.

5. A lens mechanism according to claim 1, wherein a stepped groove is formed in the transmission base, and the inner diameter of the stepped groove gradually increases from bottom to top to form a funnel shape.

6. A manually adjustable lens mechanism according to claim 1, wherein the optical lens is provided with an outer toothed ring and the carrier is provided with an inner toothed ring in driving engagement with the outer toothed ring.

7. A manually adjustable focus lens mechanism according to claim 1, wherein a plurality of resistance-increasing rings are provided between said inner barrel and said outer barrel.

8. A lens mechanism according to claim 1, wherein the outer barrel is provided with an anti-slip sleeve.

9. A manually adjustable lens mechanism according to claim 1, wherein a protective lens is attached to the end of the outer barrel.

10. A lens mechanism for manual focusing according to claim 1, wherein an end portion of said outer cylinder is provided with a male screw portion for screw-coupling with a male adaptor.