CN214412915U

CN214412915U - Lens test tray and optical test equipment

Info

Publication number: CN214412915U
Application number: CN202120624275.8U
Authority: CN
Inventors: 李小明; 苗冬俊
Original assignee: Kunshanqiu Titanium Photoelectric Technology Co Ltd
Current assignee: Kunshanqiu Titanium Photoelectric Technology Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-10-15
Anticipated expiration: 2031-03-26

Abstract

A lens test tray comprises a base, an optical filter and a positioning cover, wherein the base is provided with a through hole, the optical filter is fixed on the base, the optical filter covers the through hole, the positioning cover is detachably mounted on the through hole, the positioning cover is provided with a positioning hole for positioning a lens, and the positioning hole is communicated with the through hole. The utility model discloses a lens test tray can save the cost of manufacture of high accuracy base part, reduces the calibration time of lens test tray. The utility model discloses still relate to an optical test equipment.

Description

Lens test tray and optical test equipment

Technical Field

The utility model relates to a camera lens detects technical field, in particular to camera lens test tray and optical test equipment.

Background

In the lens test of the mobile terminal, the lens can be put into use only when the lens test is qualified, so that the standard of the test data of the lens (lens) is high. When the lens is tested, the lens needs to be placed in the tray, and then the tray is placed on the testing equipment for testing, so that factors influencing lens testing data include the precision of the optical testing equipment, the precision of the tray and the parallelism of the optical filter. The tray on the market at present is the integral type design, and every kind of camera lens of different bores all need make a corresponding tray, and the sub-tray kind will be very many like this. Moreover, during the use of the tray, the tray needs to be installed on the testing equipment, and needs to be calibrated, so that much time is needed for performing parallel calibration on different trays.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a lens test tray can save the cost of manufacture of high accuracy base part, reduces the calibration time of lens test tray.

A lens test tray is used for testing lenses and comprises a base, a light filter and a positioning cover, wherein the base is provided with a through hole, the light filter is fixed on the base, the light filter covers the through hole, the positioning cover is detachably arranged on the through hole, the positioning cover is provided with a positioning hole for positioning the lenses, and the positioning hole is communicated with the through hole.

The utility model discloses in, above-mentioned base includes relative first surface and second surface, and the through-hole runs through first surface and second surface, and the location lid sets up in the first surface, and the one end of location lid sets up in the through-hole, and the light filter is fixed in the second surface.

The utility model discloses in, above-mentioned locating cap is including apron and locating piece, apron and locating piece fixed connection, and the apron sets up in the first surface, and the locating piece sets up in the through-hole.

The utility model discloses in, above-mentioned locating piece is towards the height that highly is less than or equal to the through-hole of keeping away from the apron direction.

The utility model discloses in, the external diameter of above-mentioned locating piece equals the internal diameter of through-hole.

The utility model discloses in, above-mentioned second surface is equipped with the setting element of location base, and the setting element is towards the direction protrusion of keeping away from the second surface.

In the present invention, the positioning member is circular.

The utility model discloses in, above-mentioned locating hole is loudspeaker form including daylighting section and positioning segment, daylighting section, and the camera lens sets up in the positioning segment.

The utility model discloses still relate to an optical test equipment, including foretell camera lens test tray.

The utility model discloses in, be equipped with the draw-in groove on the above-mentioned optical test equipment, the camera lens test tray is fixed in optical test equipment through the draw-in groove.

The utility model discloses a location lid detachable of camera lens test tray installs in the through-hole of base, consequently can change rather than the location lid that matches according to the size of camera lens bore, need not to change the base, avoids changing whole tray, has practiced thrift the cost of manufacture of tray. And the time for calibrating the parallelism of the base is saved because the base does not need to be frequently replaced.

Drawings

Fig. 1 is a schematic structural diagram of the lens test tray of the present invention when carrying lenses.

Fig. 2 is a schematic view of a disassembled structure of the lens test tray shown in fig. 1.

Fig. 3 is a schematic cross-sectional structure view of the lens test tray shown in fig. 1.

Fig. 4 is a schematic structural diagram of the optical testing apparatus of the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.

Fig. 1 is a schematic diagram of a lens test tray of the present invention when carrying a lens, fig. 2 is a schematic diagram of a split structure of the lens test tray shown in fig. 1, fig. 3 is a schematic diagram of a cross-sectional structure of the lens test tray shown in fig. 1, as shown in fig. 1, fig. 2 and fig. 3, the lens test tray 10 includes a base 11, an optical filter (IR)13 and a positioning cover 12, the base 11 is provided with a through hole 101, the optical filter 13 is fixed on the base 11, the optical filter 13 covers the through hole 101, the positioning cover 12 is detachably mounted on the through hole 101, the positioning cover 12 is provided with a positioning hole 102 of the positioning lens 20, and the positioning hole 102 is communicated with the through hole 101. In the embodiment, the lens 20 is disposed in the positioning hole 102, the filter 13 is disposed opposite to the lens 20, the base 11 is made of aluminum alloy or stainless steel, and the positioning cover 12 is made of aluminum alloy or stainless steel, which is more durable and less prone to deformation during use, but not limited thereto.

The utility model discloses a location lid 12 detachable of camera lens test tray 10 installs in base 11's through-hole 101, consequently can change rather than the location lid 12 that matches according to the size of 20 bores of camera lens, need not to change base 11, avoids changing whole tray, has practiced thrift the cost of manufacture of tray. The time for calibrating the parallelism of the base 11 is also saved because the base 11 does not need to be changed frequently.

As shown in fig. 1, 2 and 3, the base 11 includes a first surface 111 and a second surface 112 opposite to each other, the through hole 101 penetrates through the first surface 111 and the second surface 112, the positioning cover 12 is disposed on the first surface 111, one end of the positioning cover 12 is disposed in the through hole 101, and the optical filter 13 is fixed on the second surface 112. In the present embodiment, the first surface 111 and the second surface 112 are parallel and opposite to each other, and the first surface 111 and the second surface 112 are circular planes.

As shown in fig. 2 and 3, the optical filter 13 is adhered to the second surface 112 by an adhesive tape, which is a flat adhesive tape, so that the parallelism of the optical filter 13 is not affected. When the filter 13 is used with dust for a long time, the filter 13 is convenient to replace; the adhesive tape is, for example, a paper adhesive, but not limited thereto.

As shown in fig. 1, 2 and 3, the positioning cover 12 includes a cover plate 121 and a positioning block 122, the cover plate 121 is fixedly connected to the positioning block 122, the cover plate 121 is disposed on the first surface 111, and the positioning block 122 is disposed in the through hole 101, so as to prevent the end surface of the positioning block 122 from directly contacting the optical filter 13. In the embodiment, the positioning hole 102 penetrates through the cover plate 121 and the positioning block 122, and the positioning hole 102 can suspend the lens 20 above the optical filter 13, so as to facilitate testing of the lens 20; the cover plate 121 is, for example, circular, and the shape of the cover plate 121 may also be rectangular, but not limited thereto.

As shown in fig. 1, 2 and 3, the height of the positioning block 122 from the cover plate 121 is less than or equal to the height of the through hole 101. In the embodiment, the positioning block 122 cannot touch the filter 13, because the filter 13 is relatively thin, when the positioning block 122 touches the filter 13, the filter 13 is deformed, which affects the flatness of the filter 13, and results in inaccurate test data of the lens 20.

As shown in fig. 2, the thickness of the filter 13 is 0.10mm to 0.25mm, and the thickness of the filter is, for example, 0.11mm, 0.15mm, 0.21mm, etc., but not limited thereto.

As shown in fig. 2 and 3, the outer diameter of the positioning block 122 is equal to the inner diameter of the through hole 101, and the outer diameter of the cover plate 121 is larger than the outer diameter of the positioning block 122. In the embodiment, the positioning block 122 is cylindrical, and an outer sidewall of the positioning block 122 is attached to an inner sidewall of the through hole 101 for positioning the lens 20.

As shown in fig. 1, fig. 2 and fig. 3, the second surface 112 is provided with a positioning member 113 for positioning the base 11, the positioning member 113 protrudes in a direction away from the second surface 112, and the positioning member 113 is annular. In this embodiment, the positioning element 113 is circumferentially disposed around the second surface 112, the positioning element 113 is perpendicular to the second surface 112, and the positioning element 113 may also be rectangular or polygonal, but not limited thereto.

In another preferred embodiment, the positioning element 113 is block-shaped, the second surface 112 is provided with a plurality of positioning elements 113, the positioning elements 113 are spaced apart from each other around the circumference of the second surface 112, and the number of the positioning elements 113 is, for example, 2, 3, or 4, but not limited thereto.

As shown in fig. 3, the positioning hole 102 includes a lighting section and a positioning section, the lighting section is horn-shaped, and the lens 20 is disposed in the positioning section.

As shown in fig. 1 and 3, when the field of view of the lens 20 is at a large angle such as 100 degrees or 110 degrees, the trumpet-shaped light-collecting section can avoid the phenomenon of blocking light.

The utility model discloses still relate to an optical test equipment 30, including foretell camera lens test tray 10.

Fig. 4 is a schematic structural diagram of the optical testing apparatus of the present invention, as shown in fig. 4 (and in conjunction with fig. 2 and fig. 3), a clamping groove (not shown) is provided on the optical testing apparatus 30, and the lens testing tray 10 is fixed to the optical testing apparatus 30 through the clamping groove. In this embodiment, the matching between the card slot and the positioning element 113 can make the base 11 flatly placed on the optical testing apparatus 30, so that the flatness of the base 11 can meet the requirement of high precision.

Further, the optical testing apparatus 30 is used for detecting the imaging quality of the lens 20, the lens 20 which can be used for detection is, for example, a camera lens, a mobile phone lens, a vehicle-mounted lens, a CCTV lens, an industrial lens, a military-grade optical aiming device, and the like, and the optical testing apparatus 30 mainly detects the effective focal length, the on-axis optical transfer function MTF, the off-axis optical transfer function MTF, the defocus optical transfer function MTF, the phase transfer function PTF, the distortion, the chromatic aberration, the astigmatism, the field angle, the relative transmittance, the line spread function LSF, the main beam angle, the relative illumination, the field curvature, and the like of the lens 20.

The utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses a within the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. The lens test tray is used for testing lenses and is characterized by comprising a base (11), an optical filter (13) and a positioning cover (12), wherein the base (11) is provided with a through hole (101), the optical filter (13) is fixed on the base (11), the optical filter (13) covers the through hole (101), the positioning cover (12) is detachably mounted on the through hole (101), the positioning cover (12) is provided with a positioning hole (102) for positioning the lens (20), and the positioning hole (102) is communicated with the through hole (101).

2. The lens test tray according to claim 1, wherein the base (11) includes a first surface (111) and a second surface (112) opposite to each other, the through hole (101) penetrates the first surface (111) and the second surface (112), the positioning cover (12) is disposed on the first surface (111), one end of the positioning cover (12) is disposed in the through hole (101), and the optical filter (13) is fixed to the second surface (112).

3. The lens test tray of claim 2, wherein the positioning cover (12) comprises a cover plate (121) and a positioning block (122), the cover plate (121) is fixedly connected with the positioning block (122), the cover plate (121) is disposed on the first surface (111), and the positioning block (122) is disposed in the through hole (101).

4. The lens test tray of claim 3, wherein the height of the positioning block (122) in a direction away from the cover plate (121) is less than or equal to the height of the through hole (101).

5. The lens test tray of claim 3, wherein an outer diameter of the positioning block (122) is equal to an inner diameter of the through hole (101).

6. A lens test tray according to claim 2, characterized in that the second surface (112) is provided with a positioning element (113) for positioning the base (11), the positioning element (113) protruding away from the second surface (112).

7. The lens test tray of claim 6, wherein the positioning member (113) is annular.

8. The lens test tray of claim 1, wherein the positioning hole (102) comprises a lighting section and a positioning section, the lighting section is horn-shaped, and the lens (20) is disposed on the positioning section.

9. An optical test apparatus, characterized in that it comprises a lens test tray (10) according to any one of claims 1 to 8.

10. The optical test apparatus according to claim 9, wherein a card slot is provided on the optical test apparatus (30), and the lens test tray (10) is fixed to the optical test apparatus (30) through the card slot.