CN218003905U

CN218003905U - Optical lens mounting structure

Info

Publication number: CN218003905U
Application number: CN202222052162.2U
Authority: CN
Inventors: 康俊涛
Original assignee: Iray Technology Co Ltd
Current assignee: Iray Technology Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-09
Anticipated expiration: 2032-08-04

Abstract

The application provides an optical lens mounting structure, includes: the optical lens comprises a lens electronic contact array, a balance contact and a lens mounting bayonet, wherein the balance contact and the lens electronic contact array are distributed at intervals; the lens mounting barrel comprises a bayonet ring inner jaw, and the bayonet ring inner jaw is detachably clamped and matched with the lens mounting bayonet; the balance spring needle is arranged on the lens mounting barrel along the direction parallel to the optical axis; the electronic connecting piece is arranged on the lens mounting barrel and comprises an electronic spring pin array, and the electronic spring pin array and the balance spring pins are distributed at intervals; when the lens mounting bayonet is clamped with the bayonet ring inner claw, the electronic spring needle row is electrically contacted with the lens electronic contact row, and the balance spring needle is abutted with the balance contact. In the optical lens mounting structure of this application, through the butt cooperation between balanced spring needle, the balanced contact to balanced camera lens electron contact is listed as, the contact cooperation of electron spring needle row spring needle, thereby makes optical lens's optical axis can not take place the skew slope, guarantees imaging quality.

Description

Optical lens mounting structure

Technical Field

The present disclosure relates to optical lens technologies, and particularly to an optical lens mounting structure.

Background

Common types of optical Lens mount (Lens mount) are: 4/3, AR, FD/FL, MD/MC, FX/XA, EF, SA, A, C/Y, kyocera/Yashica AF, K/PK/RK, M42, mamiya, OM, F, R, kyocera Contax-N, and the like. The working principle of the bayonet of the lens is that the optical lens is fixed on the camera by mutually matching the outer three claws of the optical lens and the inner three claws of the bayonet ring on the camera.

Many single lens reflex lenses and infrared lenses have a zooming and focusing function, and need to be electrified through contact connection, but the current contact electrifying mode is to intensively arrange a row of contacts on the tail surface of an optical lens, and the electrification is realized through the contact of corresponding PogoPin on a camera.

The optical lens with the energized contacts has a significant disadvantage when mounted on a camera in the manner described above: because the PogoPin is unidirectionally pushed to a contact point at the end part of the lens, but not omnidirectionally contacted with the tail end face of the optical lens, when the fit clearance of the outer three claws of the optical lens and the inner three claws of the bayonet ring is increased due to repeated assembly and disassembly, the optical axis of the optical lens is inevitably deviated to a certain extent and is not perpendicular to the CCD/FPA surface, so that imaging blur is caused, and the imaging quality is influenced.

Therefore, it is desirable to provide an optical lens mounting structure to overcome the above problems.

Disclosure of Invention

Based on this, for solving above-mentioned art problem, this application provides an optical lens mounting structure, can avoid the problem of the optical lens optical axis skew that causes after the many times dismouting of lens bayonet socket.

An embodiment of the present application provides an optical lens mounting structure, including:

the optical lens is detachably arranged on the camera and comprises a lens electronic contact array, at least two balance contacts and a lens mounting bayonet, wherein the at least two balance contacts and the lens electronic contact array are distributed at intervals around the lens mounting bayonet;

the lens mounting barrel is arranged on a camera and comprises a bayonet ring inner claw, and the bayonet ring inner claw and the lens mounting bayonet are detachably clamped and matched in the optical axis direction of the optical lens;

the at least two balance spring pins are arranged on the lens mounting barrel along the direction parallel to the optical axis and are equal to the at least two balance contacts in number;

the electronic connecting piece is arranged on the lens mounting barrel and comprises an electronic spring pin array, and the electronic spring pin array and the at least two balance spring pins are distributed at intervals around the bayonet ring inner claw;

when the lens mounting bayonet is clamped with the inner jaw of the bayonet ring, the electronic spring needle row is in electrical contact with the lens electronic contact row, and the at least two balance spring needles are abutted to the at least two balance contacts.

In one embodiment, the at least two balance contacts and the lens electronic contact array are uniformly distributed around the lens mounting bayonet at equal intervals of a central angle; the electronic spring needle array and the at least two balance spring needles are uniformly distributed around the inner jaw of the bayonet ring at equal intervals by the same central angle.

In one embodiment, the number of balance contacts is one less than the number of jaws on the jaws in the bayonet ring.

In one embodiment, the balance contact is a recess formed on the optical lens; the balance spring needle is a pin shaft with the tail end capable of elastically stretching or is PogoPin.

In one embodiment, the optical lens fixing device further comprises a rubber pad arranged on the lens mounting barrel, and when the lens mounting bayonet is clamped with the bayonet ring inner claw, the rubber pad is abutted to the optical lens so as to provide elastic force along the optical axis direction between the optical lens and the lens mounting barrel.

In one embodiment, the rubber pads are arranged in a plurality, the rubber pads are uniformly distributed around the inner claws of the bayonet ring at equal intervals, and the rubber pads are arranged close to the balance spring pins.

In one embodiment, the lens mount further comprises a pressing plate fixed to the lens mount barrel to limit displacement of the rubber pad and the balance spring pin in the optical axis direction.

In one embodiment, the electronic connector includes a reinforcing plate, the electronic spring needle array is disposed on the reinforcing plate, and one side of the reinforcing plate is provided with an external interface.

The optical lens mounting structure of the application has the following beneficial effects at least: among the optical lens mounting structure of this application, through with camera lens electron contact row, electron spring needle row interval distribution's balanced spring needle, the butt cooperation between the balanced contact, the outer claw of having solved optical lens leads to fit clearance increase back because many times dismouting with bayonet ring's interior claw cooperation department, the camera lens electron contact of unilateral is listed as, electron spring needle row spring needle can lead to optical lens's optical axis skew, the fuzzy problem of formation of image, through balanced spring needle, balanced contact is balanced, thereby make optical lens's optical axis can not take place the skew slope, guarantee the image quality.

Drawings

Fig. 1 is an exploded view of an optical lens mounting structure according to an embodiment of the present application;

FIG. 2 is an assembled side view of the optical lens mounting structure of FIG. 1;

fig. 3 is a partial sectional view of the optical lens mounting structure of fig. 2.

The elements in the figures are numbered as follows:

a lens protection cover 10;

an optical lens 20 (among them, a lens electronic contact row 21, a balance contact 22, a positive mount flag 23, a lens mount bayonet 24);

a lens mounting barrel 30 (wherein, a bayonet ring inner claw 31, a spring pin through hole column 32, a mounting barrel rear end face 33, a balance spring pin mounting groove 34 and a rubber pad mounting groove 35);

a rubber pad 40;

a balance spring pin 50;

an electronic connector 60 (among them, an electronic pogo pin array 61, an external port 62, and a reinforcing sheet 63);

a pressure plate 70.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may be present, and the term "coupled" as used herein refers to a coupling in which two elements have power transfer. As used herein, the terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for purposes of illustration only and do not denote a single embodiment, it being understood that such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings, e.g., elements or features described as "below" or "beneath" other elements or features would be oriented "above" the other elements or features if the device were flipped in the drawings. Thus, the example term "below" can encompass both an orientation of above and below.

Unless defined otherwise, all 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. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the terms "and/or" and/or "include any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an optical lens mounting structure according to an embodiment of the present application includes a lens protection cover 10, an optical lens 20 and a lens mounting barrel 30 sequentially arranged along an optical axis direction, the lens protection cover 10 is detachably mounted at a front end of the optical lens 20 for protecting optical elements in the optical lens 20, and a rear end of the optical lens 20 is detachably mounted in the lens mounting barrel 30 disposed on a camera (not shown).

The rear end of the optical lens 20 is provided with a lens electronic contact array 21, and the lens electronic contact array 21 is used for starting the optical lens 20 to have a zooming and focusing function after being electrified. The rear end of the optical lens 20 is further provided with a balance contact 22, and the balance contact 22 and the lens electronic contact array 21 are distributed at intervals around a lens mounting bayonet 24 arranged at the rear end of the optical lens 20. The rear end of the optical lens 20 is also provided with a forward mount 23 for orientation recognition when the optical lens 20 is mounted on a camera.

In the illustrated embodiment, the balanced contact 22 is provided in two places, and the balanced contact 22 is not an electrical contact and may be provided as a dimple.

The inner wall of the opening of the rear end face 33 of the mounting barrel at the rear end of the lens mounting barrel 30 is provided with a bayonet ring inner claw 31 for detachably clamping and matching with the lens mounting bayonet 24, so that the optical lens 20 is mounted in the lens mounting barrel 30. Specifically, the lens mount bayonet 24 protrudes outward three latch teeth corresponding to the three bayonet ring inner claws 31 on the inner wall of the rear end opening of the lens mount barrel 20, and the lens mount bayonet 24 protrudes outward three latch teeth corresponding to the three bayonet ring inner claws 31 by extending the lens mount bayonet 24 into the bayonet ring and rotating the optical lens 20 around the optical axis direction, respectively, thereby fixing the optical lens 20 in the lens mount barrel 30.

The rear end face 33 of the mounting barrel at the rear end of the lens mounting barrel 30 is further provided with a pogo pin through hole array 32, and the position of the pogo pin through hole array 32 corresponds to the position of the lens electronic contact array 21 of the optical lens 20, so that the electronic pogo pin array 61 on the electronic connector 60 can pass through the pogo pin through hole array 32 and is electrically connected with the lens electronic contact array 21.

A balance spring pin mounting groove 34 is formed on the mounting barrel rear end surface 33 at the rear end of the lens mounting barrel 30 corresponding to the balance contact 22, so that the balance spring pin 50 can be mounted in the balance spring pin mounting groove 34 and matched with the corresponding balance contact 22. That is, the pogo pin through-hole rows 32 and the balance pogo pin mounting grooves 34 are spaced in the same distribution manner as the lens electronic contact rows 21 and the balance contacts 22, the positions of the pogo pin through-hole rows 32 correspond to the positions of the lens electronic contact rows 21 in the direction parallel to the optical axis, and the positions of the balance pogo pin mounting grooves 34 correspond to the positions of the balance contacts 22 in the direction parallel to the optical axis, as shown in fig. 2.

A rubber pad mounting groove 35 is further formed in the mounting cylinder rear end surface 33 at the rear end of the lens mounting cylinder 30 for mounting a rubber pad 40. Two rubber pads 40 are arranged on the tail end face of the lens mounting barrel 30, and after the optical lens 20 is assembled in place, certain interference exists between the rubber pads 40 and the tail end face of the optical lens 20, as shown in fig. 3, so that the characteristic that the rubber pads 40 have high damping sense can be utilized, the balance spring pins 50 are prevented from sliding out of the balance contacts 22, and the assembling stability of the optical lens 20 is improved. In the illustrated embodiment, the number of the rubber pad mounting grooves 35 and the corresponding rubber pads 40 is two, and the rubber pads 40 are respectively disposed beside the two balance spring pin mounting grooves 34, so that when the lens mounting bayonet 24 is engaged with the bayonet ring inner claw 31, the rubber pads 40 abut against the rear end surface of the optical lens 20 to provide an elastic force along the optical axis direction between the optical lens 20 and the lens mounting barrel 30.

The balance spring pin 50 is used to cooperate with the balance contact 22, the balance spring pin 50 may be a pin with an elastically retractable end, or the balance spring pin 50 may be PogoPin directly.

The electronic connector 60 is mounted on the rear end of the lens mounting barrel 30 and includes a reinforcing plate 63 and an external interface 62. The electronic spring needle array 61 is provided on a reinforcing plate 63, and an external interface 62 for connection with an external FPC or the like is provided on one side of the reinforcing plate 63. The reinforcing tab 63 can be installed in the pogo pin hole array 32 on the rear end face 33 of the mounting tube.

The rear end of the lens mounting barrel 30 is also provided with a pressing plate 70, the pressing plate 70 is tightly mounted on the rear end surface 33 of the mounting barrel, the rubber pad 40 is fixed in the rubber pad mounting groove 35, and the balance spring pin 50 is mounted in the balance spring pin mounting groove 34. The pressing plate 70 limits displacement of the rubber pad 40 and the balance spring pin 50 in the optical axial direction, and restricts the rubber pad 40 and the balance spring pin 50 to the rubber pad mounting groove 35 and the balance spring pin mounting groove 34, respectively.

The rear end of the optical lens 20 is provided with two balance contacts 22, correspondingly, the lens mounting barrel 30 is also provided with two balance spring pins 50, the two balance spring pins 50 have the function of not conducting electricity, but achieving the balance function with the lens electronic contact array 21 and the electronic spring pin array 61, and the electricity conducting function can be realized only by the contraposition contact of the lens electronic contact array 21 and the electronic spring pin array 61.

When the optical lens 20 is fitted with the bayonet ring inner claw 31 on the lens mounting barrel 30 on the camera through the lens mounting bayonet 24, the lens electronic contact array 21 and the electronic spring pin array 61 realize point-to-point alignment along with the clockwise screwing of the optical lens 20, and the balance spring pins 50 fall into the corresponding balance contacts 22 to realize point-to-point alignment. Two rubber pads 40 are arranged on the tail end face of the lens mounting barrel 30, and after the optical lens 20 is assembled in place, the rubber pads 40 slightly interfere with the tail end face of the optical lens 20, so that the characteristic that the rubber pads 40 have high damping feeling is utilized, the pogo pins are prevented from sliding out of the concave pits, and the assembly stability of the optical lens 20 is improved. At optical lens 20 afterbody terminal surface, lens electron contact is listed as 21, two balanced contacts 22, and the three is with 120 modes equipartition distributions of equidistant equipartition of central angle a, even optical lens 20 dismouting is used many times, when the fit clearance appears in lens installation bayonet socket 24 and the cooperation assembly of bayonet ring inner claw 31, also can make optical lens 20's optical axis can not take place the skew slope with electronic spring needle array 61 interval distribution's balanced spring needle 50.

It should be noted that, in the illustrated embodiment, two balance contacts 22 are disposed on the optical lens 20, and the two balance contacts 22 and the lens electronic contact array 21 are uniformly distributed around the lens mounting bayonet 24 at equal intervals by a central angle (a), where the central angle a is 120 °; the number of the balance spring pins 50 is equal to the number of the balance contacts 22. In other embodiments, the number of balanced contacts 22 and corresponding balanced pogo pins 50 may be increased accordingly. For better balancing, the number of the balance contacts 22 is preferably one less than the number of the claws on the bayonet ring inner claw 31, i.e. the number of the balance contacts 22 plus the number of the claws on the lens electronic contact row 21 and the bayonet ring inner claw 31 are equal.

The utility model provides an optical lens mounting structure passes through the cooperation of balanced spring needle and balanced contact, has solved optical lens's outer claw and the interior claw cooperation department of bayonet ring because many times dismouting leads to fit clearance increase back, and unilateral spring needle leads to optical lens's optical axis skew, the fuzzy problem of formation of image for optical lens's optical axis can not take place to squint the slope.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. An optical lens mounting structure, comprising:

the optical lens (20) is detachably mounted on the camera and comprises a lens electronic contact array (21), at least two balance contacts (22) and a lens mounting bayonet (24), wherein the at least two balance contacts (22) and the lens electronic contact array (21) are distributed at intervals around the lens mounting bayonet (24);

the lens mounting barrel (30) is arranged on a camera and comprises a bayonet ring inner jaw (31), and the bayonet ring inner jaw (31) is detachably clamped and matched with the lens mounting bayonet (24) in the optical axis direction of the optical lens (20);

at least two balance spring pins (50) which are arranged on the lens mounting barrel (30) along the direction parallel to the optical axis and are equal to the at least two balance contacts (22) in number;

the electronic connecting piece (60) is arranged on the lens mounting barrel (30) and comprises an electronic spring needle array (61), and the electronic spring needle array (61) and the at least two balance spring needles (50) are distributed at intervals around the bayonet ring inner claw (31);

when the lens mounting bayonet (24) is clamped with the bayonet ring inner claw (31), the electronic spring needle row (61) is in electrical contact with the lens electronic contact row (21), and the at least two balance spring needles (50) are abutted to the at least two balance contacts (22).

2. An optical lens mounting structure according to claim 1, wherein: the at least two balance contacts (22) and the lens electronic contact array (21) are uniformly distributed around the lens mounting bayonet (24) at equal intervals of a central angle (a); the electronic spring needle array (61) and the at least two balance spring needles (50) are uniformly distributed around the bayonet ring inner claw (31) at equal intervals by the same central angle (a).

3. An optical lens mounting structure according to claim 1, wherein: the number of the balance contacts (22) is one less than that of the claws on the claws (31) in the bayonet ring.

4. An optical lens mounting structure according to claim 1, wherein: the balance contact (22) is a recess formed on the optical lens (20); the balance spring needle (50) is a pin shaft with the tail end capable of elastically stretching or the balance spring needle (50) is PogoPin.

5. An optical lens mounting structure according to claim 1, wherein: still including locating rubber pad (40) on the lens installation section of thick bamboo (30), work as lens installation bayonet socket (24) with during bayonet ring inner claw (31) joint, rubber pad (40) with optical lens (20) butt, with optical lens (20) with provide between the lens installation section of thick bamboo (30) and follow the elastic force of optical axis direction.

6. An optical lens mounting structure according to claim 5, wherein: the rubber pads (40) are arranged in a plurality of numbers, the rubber pads (40) are uniformly distributed around the bayonet ring inner claws (31) at equal intervals, and the rubber pads (40) are arranged close to the balance spring needles (50).

7. An optical lens mounting structure according to claim 5, wherein: the lens mounting device further comprises a pressing plate (70) fixed on the lens mounting barrel (30) so as to limit the displacement of the rubber pad (40) and the balance spring needle (50) in the direction of the optical axis.

8. An optical lens mounting structure according to claim 1, wherein: the electronic connecting piece (60) comprises a reinforcing sheet (63), the electronic spring needle row (61) is arranged on the reinforcing sheet (63), and an external interface (62) is arranged on one side of the reinforcing sheet (63).