CN213985621U

CN213985621U - Fixing device of camera lens test card

Info

Publication number: CN213985621U
Application number: CN202022757876.4U
Authority: CN
Inventors: 林伟强; 叶华涛; 左丰竹; 朱盛宏; 陈本涛; 丁红昌
Original assignee: Dongguan Yutong Optical Technology Co Ltd
Current assignee: Dongguan Yutong Optical Technology Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-17
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to a camera lens test technical field discloses a fixing device of camera lens test card for fixed test card. The fixing device of the lens test card comprises a lamp box, a light-transmitting substrate and a light-transmitting pressing plate. The light source is arranged in the lamp box. The light-transmitting substrate is arranged on the light-emitting surface of the lamp box and is detachably connected with the lamp box. The light-transmitting pressing plate is attached to the end face, back to the lamp box, of the light-transmitting substrate and detachably connected with the light-transmitting substrate, the test card can be arranged between the light-transmitting substrate and the light-transmitting pressing plate, and light emitted by the lamp box can sequentially penetrate through the light-transmitting substrate, the test card and the light-transmitting pressing plate. The utility model discloses guaranteed the roughness of test card, improved the incorruptibility of test card, reduced the maintenance cost, also guaranteed the repeatability of test and the accuracy of result.

Description

Fixing device of camera lens test card

Technical Field

The utility model relates to a camera lens test technical field especially relates to a fixing device of camera lens test card.

Background

With the increasingly wide application of optical lenses in life, the requirements for the imaging quality of the lenses are continuously improved, so how to improve the real shooting detection efficiency when the optical lenses are shipped is important. At present, a lens test card is used for testing parameters such as resolution and color display of a lens, and the conventional lens test card fixing method is to attach the test card to the surface of a uniform lamp box and determine a proper real shooting detection position of the lens by adjusting the relative positions of the lamp box, the test card and a camera for many times. Because the test card is directly attached to the outer side of the lamp box, the flatness of the test card needs to be adjusted continuously in order to ensure the accuracy of a detection result, and the test card is not provided with a protection structure for the test card, is easy to age and is not convenient to replace. When a plurality of lenses of the same kind need to be replaced, the flatness of the test card still needs to be repeatedly adjusted under the same test condition, the operation is very complicated, the accuracy and the repeatability in the detection are difficult to ensure, and the time cost is also improved.

Accordingly, there is a need for a fixing device for lens test card to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixing device of camera lens test card has guaranteed the roughness of test card, has improved the incorruptibility of test card, has reduced the maintenance cost, has also guaranteed the repeatability of test and the accuracy of result.

To achieve the purpose, the utility model adopts the following technical proposal:

a fixing device for lens test card is used for fixing the test card, including:

the lamp box is internally provided with a light source;

the light-transmitting substrate is arranged on the light-emitting surface of the light box and is detachably connected with the light box;

the light-transmitting pressing plate is attached to the light-transmitting substrate, the light-transmitting substrate is back on the end face of the lamp box and is detachably connected with the light-transmitting substrate, the test card can be arranged in the light-transmitting substrate and between the light-transmitting pressing plates, and light emitted by the lamp box can sequentially penetrate through the light-transmitting substrate, the test card and the light-transmitting pressing plates.

Preferably, the printing opacity base plate includes first glass board and support piece, support piece follows the circumference setting of first glass board is in the lamp house on the light emitting area, just support piece with the connection can be dismantled to the lamp house, support piece carry on the back in the constant head tank has been seted up on the terminal surface of lamp house, the edge of first glass board is fixed in the constant head tank, so that first glass board with light emitting area parallel arrangement.

Preferably, the support member includes two support blocks, the two support blocks are arranged on the light emitting surface at intervals, the positioning groove is formed in each support block, and the edges of the two ends of the first glass plate are respectively fixed in the two positioning grooves.

Preferably, the fixing device of the lens test card further comprises a U-shaped compression piece, the compression piece comprises a first side arm, a connecting portion and a second side arm which are connected in sequence, the first side arm of the compression piece abuts against the end face of the light emitting surface opposite to the supporting block, the second side arm abuts against the end face of the lamp box opposite to the supporting block, a first screw hole is formed in the connecting portion, a first locking bolt is screwed in the first screw hole, and the end face of the stud of the first locking bolt abuts against the side wall of the lamp box.

Preferably, a second screw hole is formed in the second side arm, a second locking bolt is screwed in the second screw hole, and the end face of the screw rod of the second locking bolt abuts against the lamp box.

Preferably, the printing opacity clamp plate includes second glass board and mounting, the laminating of the one end terminal surface of second glass board is in first glass board back of the body on the terminal surface of lamp house, the mounting connect in on the other end terminal surface of second glass board, the mounting with support piece is just setting up, just the mounting with support piece can dismantle the connection.

Preferably, the fixing part comprises two fixing pressing blocks, the two fixing pressing blocks are arranged in one-to-one correspondence with the two supporting blocks, and the fixing pressing blocks are detachably connected with the supporting blocks.

Preferably, the edges at two ends of the second glass plate and the two fixed pressing blocks are respectively and correspondingly arranged in the two positioning grooves.

Preferably, a first magnetic part is arranged on the supporting block, a second magnetic part is arranged on the fixed pressing block, and the first magnetic part and the second magnetic part are arranged oppositely, so that the first glass plate is attached to the second glass plate.

Preferably, a handle is arranged on the fixing piece.

The utility model has the advantages that: adopt the printing opacity base plate and the printing opacity clamp plate of laminating each other for use the utility model discloses during the test camera lens, the test card is arranged in between the printing opacity clamp plate and the printing opacity base plate of laminating each other, has guaranteed the roughness of test card, can also protect the test card, has improved the incorruptibility of test card, has reduced the maintenance cost, has also guaranteed the repeatability of test and the accuracy of result. The light-transmitting pressing plate is detachably connected with the light-transmitting substrate, so that the test card is convenient to replace, and the complication of operation is avoided. The light-transmitting substrate is detachably connected with the lamp box, so that different light-transmitting substrates can be conveniently replaced according to experiment requirements, the practicability and the use convenience are improved, and the application range is also enlarged.

Drawings

Fig. 1 is a schematic structural diagram of a first view angle of a fixing device of a lens test card according to an embodiment of the present invention;

fig. 2 is an exploded view of a fixing device of a lens test card according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second view angle of the fixing device of the lens test card according to the embodiment of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure:

1. a light box;

2. a light-transmitting substrate; 21. a first glass plate; 22. a support block; 221. positioning a groove; 222. a first magnetic member;

3. a light-transmitting platen; 31. a second glass plate; 32. fixing a pressing block; 321. a second magnetic member; 322. a handle;

4. a compression member; 41. a first side arm; 42. a second side arm; 421. a second locking bolt; 43. a connecting portion; 431. a first locking bolt.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment provides a fixing device for lens test card, which is used to fix the test card 10. Specifically, as shown in fig. 1 to 4, the fixing device of the lens test card includes a lamp box 1, a transparent substrate 2 and a transparent pressing plate 3. A light source is arranged in the lamp box 1. The light-transmitting substrate 2 is arranged on the light-emitting surface of the lamp box 1 and is detachably connected with the lamp box 1. The light-transmitting pressing plate 3 is attached to the end face, back to the lamp box 1, of the light-transmitting substrate 2 and detachably connected with the light-transmitting substrate 2, the test card 10 can be arranged between the light-transmitting substrate 2 and the light-transmitting pressing plate 3, and light emitted by the lamp box 1 can sequentially penetrate through the light-transmitting substrate 2, the test card 10 and the light-transmitting pressing plate 3. Adopt the printing opacity base plate 2 and the printing opacity clamp plate 3 of laminating each other for use the utility model discloses during the test camera lens, test card 10 is arranged in between the printing opacity clamp plate 3 and the printing opacity base plate 2 of laminating each other, has guaranteed test card 10's roughness, can also protect test card 10, has improved test card 10's incorruptibility, has reduced the maintenance cost, has also guaranteed the repeatability of test and the accuracy of result. The transparent pressing plate 3 is detachably connected with the transparent substrate 2, so that the test card 10 is convenient to replace, and the complication of operation is avoided. The light-transmitting substrate 2 is detachably connected with the lamp box 1, so that different light-transmitting substrates 2 can be replaced conveniently according to experiment requirements, the practicability and the use convenience are improved, and the application range is also enlarged. It will be appreciated that the light box 1 has a light emitting surface thereon, and light from the light source within the light box 1 can shine through the light emitting surface towards the outside of the light box 1.

Preferably, the light-transmissive substrate 2 includes a first glass plate 21 and a support. Support piece sets up on the light emitting area of lamp house 1 along the circumference of first glass board 21, and support piece and lamp house 1 can dismantle and be connected, and support piece has seted up constant head tank 221 on the terminal surface of lamp house 1 back of the body, and the edge of first glass board 21 is fixed in constant head tank 221 to make first glass board 21 and light emitting area parallel arrangement. The first glass plate 21 is arranged so that light emitted from the light emitting surface of the lamp housing 1 is transmitted through the first glass plate 21 toward the test card 10. On support piece was arranged in to first glass board 21, through the connection of dismantling between support piece and the lamp house 1, realized that printing opacity base plate 2 can be dismantled with lamp house 1 and be connected, be convenient for change printing opacity base plate 2 according to actual demand, improved the practicality. The positioning groove 221 is formed, so that the first glass plate 21 can be positioned conveniently, the position accuracy of the first glass plate 21 is improved, and the accuracy of lens testing is ensured.

In this embodiment, the first glass plate 21 is connected to the support using glue. In other embodiments, the first glass plate 21 and the support may also be integrally provided, and are not limited herein.

In this embodiment, support piece includes two supporting blocks 22, two supporting blocks 22 intervals set up on the light emitting area, constant head tank 221 has all been seted up on every supporting block 22, the edge at first glass board 21 both ends is fixed respectively in two constant head tanks 221, make first glass board 21 take on two supporting blocks 22, guaranteed that first glass board 21 can stably fix on lamp house 1, set up constant head tank 221, be convenient for fix a position first glass board 21, the practicality is improved, guarantee fixing that test card 10 can be stable between printing opacity base plate 2 and printing opacity clamp plate 3, the accuracy of measuring result has been guaranteed.

In other embodiments, the number of the supporting blocks 22 can be adjusted according to actual requirements, but it is necessary to ensure that the supporting blocks 22 are not overlapped with the test cards 10, and ensure that the light emitted from the light box 1 can pass through all the test cards 10.

Specifically, the fixing device of the lens test card further comprises a U-shaped pressing piece 4. The pressing piece 4 comprises a first side arm 41, a connecting portion 43 and a second side arm 42 which are connected in sequence, the first side arm 41 of the pressing piece 4 abuts against the end face of the supporting block 22 opposite to the light emitting face, the second side arm 42 abuts against the end face of the lamp box 1 opposite to the supporting block 22, a first screw hole is formed in the connecting portion 43, a first locking bolt 431 is screwed in the first screw hole, and the end face of a stud of the first locking bolt 431 abuts against the side wall of the lamp box 1. The mode that adopts to compress tightly 4 compresses tightly printing opacity base plate 2 on lamp house 1, and realizes dismantling the connection, is convenient for change printing opacity base plate 2 according to the demand, also through compressing tightly supporting shoe 22 on lamp house 1, guarantees fixing that printing opacity base plate 2 can be stable on lamp house 1 to guaranteed placing position stability of test card 10, improved the accuracy of test result. In addition, this kind of mode of setting up that compresses tightly piece 4 through adjusting first locking bolt 431, is convenient for remove printing opacity base plate 2 on the light emitting area of lamp house 1, has enlarged the moving range of test card 10, has improved the practicality, has enlarged application scope. In other embodiments, the transparent substrate 2 can be detachably connected to the light box 1 by bolts, etc., which are not limited herein.

Furthermore, a second screw hole is formed in the second side arm 42, a second locking bolt 421 is screwed in the second screw hole, the end face of a screw rod of the second locking bolt 421 abuts against the lamp box 1, the pressing piece 4 is further fixed, the pressing piece 4 is prevented from moving, the test card 10 can be stably fixed between the light-transmitting substrate 2 and the light-transmitting pressing plate 3, and the accuracy of a measuring result is guaranteed.

In other embodiments, a protrusion or a rubber pad may be further disposed on the inner wall of the second side arm 42 to ensure that the second side arm 42 can stably abut against the light box 1.

Preferably, the light-transmitting pressing plate 3 comprises a second glass plate 31 and a fixing member, one end face of the second glass plate 31 is attached to the end face of the first glass plate 21 opposite to the light box 1, the fixing member is connected to the other end face of the second glass plate 31, the fixing member is opposite to the supporting member, and the fixing member is detachably connected with the supporting member. Place test card 10 between first glass board 21 and the second glass board 31, guaranteed test card 10's roughness, through being connected dismantled between mounting and the support piece, realize being connected dismantled between printing opacity base plate 2 and the printing opacity clamp plate 3, also simplified operations such as change test card 10 and removal test card 10, improved practicality and convenience of use, set up second glass board 31, guaranteed that the light that lamp house 1 sent can pass printing opacity base plate 2.

It can be understood that, in order to be able to test the lens, the light emitted by the lamp box 1 can sequentially pass through the first glass plate 21, the test card 10 and the second glass plate 31, the supporting member is disposed at the edge of the first glass plate 21, the fixing member is disposed at the edge of the second glass plate 31, the first glass plate 21 and the second glass plate 31 are disposed opposite to each other, the test card 10 is disposed at the central portion of the first glass plate 21 and the second glass plate 31, and the supporting member and the fixing member can not shield the test card 10.

In this embodiment, the fixing member is attached to the second glass plate 31 using glue. In other embodiments, the fixing member and the second glass plate 31 may also be integrally provided, and are not limited herein.

Preferably, the mounting includes two fixed pressing blocks 32, two fixed pressing blocks 32 and two supporting blocks 22 one-to-one set up, fixed pressing block 32 can be dismantled with supporting block 22 and be connected, fixed pressing block 32 compresses tightly second glass plate 31 on printing opacity base plate 2, and fixed pressing block 32 and supporting block 22 one-to-one, when using test card 10 test lens, avoided taking place relative displacement between printing opacity base plate 2 and the printing opacity clamp plate 3, avoided the drunkenness of test card 10, guaranteed the degree of accuracy of the result of test.

Preferably, the fixing member is provided with a handle 322. When the test card 10 is replaced, the light-transmitting pressing plate 3 is separated from the light-transmitting substrate 2, so that the practicability and the operation convenience are improved. In particular, each fixed pressing block 32 is provided with a handle 322. In other embodiments, the number of handles 322 may be adjusted, and is not limited herein.

Preferably, the edges at the two ends of the second glass plate 31 and the two fixing pressing blocks 32 are respectively and correspondingly arranged in the two positioning grooves 221, so that the light-transmitting pressing plate 3 is conveniently positioned, the practicability is improved, the test card 10 can be stably fixed between the light-transmitting substrate 2 and the light-transmitting pressing plate 3, and the accuracy of the measurement result is ensured.

Preferably, be equipped with first magnetism spare 222 on the supporting shoe 22, be equipped with second magnetism spare 321 on the fixed briquetting 32, first magnetism spare 222 and second magnetism spare 321 are just to setting up to make the laminating of first glass board 21 and second glass board 31, through setting up two magnet, can realize printing opacity base plate 2 and printing opacity clamp plate 3 can dismantle and be connected, also convenient to detach operation simultaneously, simplified the operation of changing test card 10 and removal test card 10, improved practicality and convenience of use. In this embodiment, each supporting block 22 is provided with two first mounting holes, each first mounting hole is embedded with one first magnetic member 222, each fixed pressing block 32 is provided with two second mounting holes, the first mounting holes and the second mounting holes are arranged in a one-to-one correspondence manner, each second mounting hole is embedded with one second magnetic member 321, and the first magnetic members 222 and the second magnetic members 321 are magnets.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A lens test card holding apparatus for holding a test card (10), comprising:

the lamp box (1), a light source is arranged in the lamp box (1);

the light-transmitting substrate (2) is arranged on the light-emitting surface of the light box (1), and is detachably connected with the light box (1);

printing opacity clamp plate (3), printing opacity clamp plate (3) laminating is in printing opacity base plate (2) carry on the back in on the terminal surface of lamp house (1), and with the connection can be dismantled in printing opacity base plate (2), test card (10) can be arranged in printing opacity base plate (2) with between the printing opacity clamp plate (3), the light that lamp house (1) sent can permeate through in proper order printing opacity base plate (2) test card (10) with printing opacity clamp plate (3).

2. The fixing device of the lens test card according to claim 1, wherein the transparent substrate (2) comprises a first glass plate (21) and a supporting member, the supporting member is disposed on the light emitting surface of the light box (1) along a circumferential direction of the first glass plate (21), the supporting member is detachably connected to the light box (1), the supporting member is provided with a positioning groove (221) on an end surface opposite to the light box (1), and an edge of the first glass plate (21) is fixed in the positioning groove (221) so that the first glass plate (21) is disposed in parallel with the light emitting surface.

3. The fixing device of the lens test card according to claim 2, wherein the supporting member comprises two supporting blocks (22), the two supporting blocks (22) are disposed on the light emitting surface at intervals, each supporting block (22) is provided with the positioning groove (221), and edges of two ends of the first glass plate (21) are respectively fixed in the two positioning grooves (221).

4. The lens test card fixing device according to claim 3, further comprising a U-shaped pressing member (4), wherein the pressing member (4) includes a first side arm (41), a connecting portion (43) and a second side arm (42) which are sequentially connected, the first side arm (41) of the pressing member (4) abuts against an end surface of the support block (22) opposite to the light emitting surface, the second side arm (42) abuts against an end surface of the light box (1) opposite to the support block (22), a first screw hole is formed in the connecting portion (43), a first locking bolt (431) is screwed into the first screw hole, and an end surface of a stud of the first locking bolt (431) abuts against a side wall of the light box (1).

5. The lens test card fixing device of claim 4, wherein the second side arm (42) is provided with a second screw hole, a second locking bolt (421) is screwed in the second screw hole, and an end surface of a screw of the second locking bolt (421) abuts against the light box (1).

6. The fixing device of the lens test card according to claim 3, wherein the transparent pressing plate (3) comprises a second glass plate (31) and a fixing member, one end face of the second glass plate (31) is attached to the end face of the first glass plate (21) opposite to the lamp box (1), the fixing member is connected to the other end face of the second glass plate (31), the fixing member is disposed opposite to the supporting member, and the fixing member is detachably connected to the supporting member.

7. The fixing device of the lens test card according to claim 6, wherein the fixing member comprises two fixing pressing blocks (32), the two fixing pressing blocks (32) are arranged corresponding to the two support blocks (22), and the fixing pressing blocks (32) are detachably connected with the support blocks (22).

8. The lens test card fixing device of claim 7, wherein the edges of the two ends of the second glass plate (31) and the two fixing pressing blocks (32) are respectively and correspondingly disposed in the two positioning grooves (221).

9. The lens test card fixing device of claim 7, wherein a first magnetic member (222) is disposed on the supporting block (22), a second magnetic member (321) is disposed on the fixing pressing block (32), and the first magnetic member (222) and the second magnetic member (321) are disposed opposite to each other, so that the first glass plate (21) is attached to the second glass plate (31).

10. The lens test card fixing device of claim 6, wherein the fixing member is provided with a handle (322).