CN220751562U - Stray light detection jig - Google Patents

Abstract

The utility model relates to the technical field of lens detection, in particular to a parasitic light detection jig. The utility model provides a parasitic light detection tool, includes the base, places seat, connection platform, screen, the connection platform is fixed in the base top, the middle part of connection platform is provided with logical light round hole, the screen sets up on the base and is located logical light round hole under, place the seat setting and connect the bench, place the seat and be used for placing camera lens or lens. The utility model has the advantages that the screen is provided, the poor stray light of the lens can be detected in advance before the screen is assembled, and the whole product is not scrapped. The utility model adopts the mode of separating the lens from the screen to realize the observation of the stray light at different angles, and meanwhile, the tool is of a detachable design, thus the utility model is not limited to the observation on equipment and is more convenient to use. The placing seat is arranged on the connecting table and is used for placing lenses or lenses, the lens barrel is replaced by the placing seat, and the lenses are directly placed on the jig to measure stray light.

Description

Stray light detection jig

Technical Field

The utility model relates to the technical field of lens detection, in particular to a parasitic light detection jig.

Background

When the optical system forms a real image of an object, a small amount of non-imaging light rays can appear on an image plane besides a normal imaging light beam, and the phenomenon is called a parasitic light phenomenon. These harmful light superimposed at the image plane and not participating in direct imaging are called stray light, abbreviated as stray light. In the production process of the lens, the stray light is required to be detected, whether the lens is qualified or not is judged, and the existing stray light detection is usually carried out after the lens and the screen are completely assembled, so that when the lens and the screen are assembled and fixed, the whole product is scrapped if the stray light is unqualified; the lens and the screen are assembled and fixed, so that stray light at different angles of the lens cannot be observed; the assembled finished lens module is inconvenient to adjust and cannot be dataized.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and provides a parasitic light detection jig.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a parasitic light detection tool, includes the base, places seat, connection platform, screen, the connection platform is fixed in the base top, the middle part of connection platform is provided with logical light round hole, the screen sets up on the base and is located logical light round hole under, place the seat setting and connect the bench, place the seat and be used for placing camera lens or lens.

Further, the connection table comprises a rotary table, and the rotary table can rotate around the central axis of the circular light passing hole.

Further, the placing seat is fixed on the turntable.

Further, the placing seat is provided with a positioning hole, and the turntable is provided with a positioning column matched with the positioning hole.

Furthermore, the connecting table is provided with angle scales, and the turntable is provided with pointers pointing to the angle scales.

Further, the base comprises a Z-axis moving mechanism, the screen is arranged on the Z-axis moving mechanism, and the Z-axis moving mechanism is used for driving the screen to move up and down.

Further, the placement seat is provided with a lens imitation groove and a lens imitation groove.

Further, a plurality of support columns are arranged on the base, and the connecting table is arranged on the support columns.

Further, the support column is provided with 4, the four corners of connection platform are fixed respectively on 4 support columns.

The utility model has the beneficial effects that: compared with the prior art, the parasitic light detection jig comprises the base, the placing seat, the connecting table and the screen, wherein the connecting table is fixed above the base, the middle part of the connecting table is provided with the light-passing round hole, the screen is arranged on the base and is positioned right below the light-passing round hole, the parasitic light detection jig is provided with the screen, and the parasitic light defect of the lens can be detected in advance and the whole product can not be scrapped before the screen is assembled. The utility model adopts the mode of separating the lens from the screen to realize the observation of the stray light at different angles, and meanwhile, the tool is of a detachable design, thus the utility model is not limited to the observation on equipment and is more convenient to use. The placing seat is arranged on the connecting table and is used for placing lenses or lenses, the lens barrel is replaced by the placing seat, and the lenses are directly placed on the jig to measure stray light.

Drawings

FIG. 1 is a schematic diagram showing an exploded structure of a parasitic light detection tool according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a schematic perspective view of a parasitic light detection tool according to a preferred embodiment of the present utility model;

the reference numerals in the figures illustrate: 1. a base; 2. a placement seat; 3. a connection station; 4. a screen; 5. a lens; 11. a Z-axis movable mechanism; 12. a support column; 21. positioning holes; 22. a lens imitation groove; 23. a lens-shaped groove; 31. a light-transmitting round hole; 32. a turntable; 33. positioning columns; 34. an angle scale; 35. a pointer.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, a stray light detection jig according to a preferred embodiment of the present utility model includes a base 1, a placement base 2, a connection table 3, and a screen 4, wherein the connection table 3 is fixed above the base 1, a circular light passing hole 31 is provided in the middle of the connection table 3, the screen 4 is provided on the base 1 and is located right below the circular light passing hole 31, the placement base 2 is provided on the connection table 3, and the placement base 2 is used for placing a lens or a lens 5.

The utility model relates to a veiling glare detection jig which comprises a base 1, a placing seat 2, a connecting table 3 and a screen 4, wherein the connecting table 3 is fixed above the base 1, a light-passing round hole 31 is formed in the middle of the connecting table 3, the screen 4 is arranged on the base 1 and is positioned right below the light-passing round hole 31, the veiling glare detection jig is provided with the screen 4, and the veiling glare defect of a lens can be detected in advance before the screen 4 is assembled, and the whole product is not scrapped. The utility model adopts the mode of separating the lens from the screen 4 to realize the observation of the parasitic lights at different angles, and meanwhile, the tool is of a detachable design, thus the utility model is not limited to the observation on equipment and is more convenient to use. The placing seat 2 is arranged on the connecting table 3, the placing seat 2 is used for placing a lens or a lens 5, the lens 5 is directly placed on the jig to measure stray light by replacing a lens barrel with the placing seat 2.

As a preferred embodiment of the utility model, it may also have the following additional technical features:

in this embodiment, the connection table 3 includes a turntable 32, the turntable 32 may rotate around the central axis of the circular aperture 31, and the placement base 2 is fixed on the turntable 32. The turntable 32 capable of rotating around the central axis of the circular light hole 31 is arranged on the connecting table 3, the placing seat 2 is fixed on the turntable 32, the placing seat 2 is rotated through the turntable 32, and then the lens is freely rotated by 360 degrees, so that the stray light conditions of different angles of the lens can be observed.

In this embodiment, the placement base 2 is provided with a positioning hole 21, and the turntable 32 is provided with a positioning post 33 matched with the positioning hole 21. The placing seat 2 and the turntable 32 are fixedly arranged in a positioning way through the positioning holes 21 and the positioning columns 33.

In this embodiment, the connection table 3 is provided with an angle scale 34, and the turntable 32 is provided with a pointer 35 pointing to the angle scale 34. An angle scale 34 is provided on the connection table 3 and a pointer 35 is provided on the turntable 32 so as to observe the angle of rotation when the turntable 32 is rotated.

In this embodiment, the base 1 includes a Z-axis moving mechanism 11, the screen 4 is disposed on the Z-axis moving mechanism 11, and the Z-axis moving mechanism 11 is used to drive the screen 4 to move up and down. The base 1 comprises a Z-axis movable mechanism 11, and the screen 4 is driven to move up and down through the Z-axis movable mechanism 11 so as to adjust the distance between the screen 4 and a lens, namely, the back focal length, and the back focal length can be better restored and designed so as to record data.

In this embodiment, the lens-shaped groove 22 and the lens-shaped groove 23 are provided on the placement base 2. By providing the lens-shaped groove 22 and the lens-shaped groove 23 on the placement base 2, the lens or the lens 5 can be placed better.

In this embodiment, the base 1 is provided with a plurality of support columns 12, and the connection platform 3 is disposed on the support columns 12. The support columns 12 are provided with 4, and four corners of the connecting table 3 are respectively fixed on the 4 support columns 12. The connecting table 3 is supported by arranging the support columns 12 on the base 1, and four corners of the connecting table 3 are supported by 4 support columns 12, so that the connecting table is firm.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution and the modified concept thereof, within the scope of the present utility model.

Claims (9)

1. The utility model provides a parasitic light detection tool which characterized in that: including base (1), place seat (2), connection platform (3), screen (4), connection platform (3) are fixed in base (1) top, the middle part of connection platform (3) is provided with logical light round hole (31), screen (4) set up on base (1) and lie in logical light round hole (31) under, place seat (2) setting on connection platform (3), place seat (2) and be used for placing camera lens or lens (5).

2. The veiling glare detection jig of claim 1, wherein: the connecting table (3) comprises a rotary table (32), and the rotary table (32) can rotate around the central axis of the light through round hole (31).

3. The veiling glare detection jig of claim 2, wherein: the placing seat (2) is fixed on the turntable (32).

4. The veiling glare detection jig of claim 2, wherein: the positioning seat (2) is provided with a positioning hole (21), and the turntable (32) is provided with a positioning column (33) matched with the positioning hole (21).

5. The veiling glare detection jig of claim 2, wherein: an angle scale (34) is arranged on the connecting table (3), and a pointer (35) pointing to the angle scale (34) is arranged on the rotary table (32).

6. The veiling glare detection jig of claim 1, wherein: the base (1) comprises a Z-axis moving mechanism (11), the screen (4) is arranged on the Z-axis moving mechanism (11), and the Z-axis moving mechanism (11) is used for driving the screen (4) to move up and down.

7. The veiling glare detection jig of claim 1, wherein: the lens imitation groove (22) and the lens imitation groove (23) are arranged on the placement seat (2).

8. The veiling glare detection jig of claim 1, wherein: the base (1) is provided with a plurality of support columns (12), and the connecting table (3) is arranged on the support columns (12).

9. The veiling glare detection jig of claim 8, wherein: the support columns (12) are arranged in number, and four corners of the connecting table (3) are respectively fixed on the 4 support columns (12).