Optical chip detection equipment

Abstract

The utility model discloses optical chip detection equipment, which belongs to the technical field of optical chip detection, and comprises a clamp, the clamp comprises an outer circle body and an inner circle body, the outer circle body and the inner circle body are concentrically arranged, the inner circle body is arranged in a cavity of the outer circle body, a positioning cavity is arranged in the center of the inner circle body, and the positioning cavity is arranged in the positioning cavity. Positioning the optical chip; the detection part comprises a laser device, an optical screen and an area-array camera, the laser device and the area-array camera are arranged in the same plane and are used for detecting the optical chip, and the optical screen is located between the laser device and the clamp. The optical chip detector is small in size, low in manufacturing cost, capable of conducting high-precision stable detection on an optical chip and conducting rapid detection on performance parameter uniformity, zero-order energy and contrast ratio of the optical chip, high in detection precision, capable of conducting stable positioning on the optical chip due to the existence of the positioning part, and capable of improving the detection accuracy of the optical chip. And the detection precision of the optical chip is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical chip detection, and in particular relates to an optical chip detection device. Background Art

[0002] In the field of diffractive optical element products, the optical effect of the product is reflected in the imaging spot pattern, which involves a wide wavelength range from ultraviolet light to infrared light. In order to measure and evaluate the performance of lenses, various lens design and processing companies need to test the optical performance parameters of the products, and optical chips are a type of optical element products.

[0003] There is no unified standard for optical chip detection equipment, because optical chips are usually single-wavelength products, and the light source wavelength of the product is unique. Therefore, there are more variables in the detection equipment. Different optical chips have different application scenarios, which will be reflected in the different distances between the components on the detection equipment. Currently, various companies on the market will independently develop optical chip detection equipment to detect and measure optical chips.

[0004] Traditional optical chip detection equipment has the following defects: 1. The equipment is large in size and has high manufacturing costs; 2. The detection performance is poor, the accuracy of the acquired parameters is low, and the detection accuracy is insufficient; 3. The positioning accuracy of the optical chip is poor, which affects subsequent detection operations. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides an optical chip detection device to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an optical chip detection device, comprising

[0007] A fixture, wherein the fixture comprises an outer circular body and an inner circular body, wherein the outer circular body and the inner circular body are concentrically arranged, the inner circular body is arranged in a cavity of the outer circular body, and a positioning cavity is arranged at the center of the inner circular body to position the optical chip;

[0008] The detection part includes a laser, a light screen and an area array camera. The laser and the area array camera are arranged in the same plane to detect the optical chip. The light screen is located between the laser and the fixture.

[0009] In a preferred embodiment of the utility model, it further comprises a base, the outer circular body is arranged on the base through a plurality of mounting blocks, and the detection part is connected to the base through a bracket.

[0010] In a preferred embodiment of the utility model, the mounting block is provided with a mounting slot, and the mounting slot is engaged with the edge of the outer circular body to mount the outer circular body on the base.

[0011] In a preferred embodiment of the utility model, a plurality of edge protrusions are arranged on the inner circular body, and the edge protrusions are distributed along the edge of the positioning cavity to support the optical chip.

[0012] In a preferred embodiment of the utility model, a plurality of positioning parts are arranged on the inner circular body, and the positioning parts are distributed at intervals along the circumference of the positioning cavity to position the optical chip.

[0013] In a preferred embodiment of the utility model, the positioning part includes a positioning spring and a positioning block, the positioning spring is installed in the inner circular body, and the positioning block faces the optical chip.

[0014] In a preferred embodiment of the utility model, the positioning block is provided with an inclined surface, and the inclined surface is arranged upward to facilitate the optical chip to enter the positioning cavity.

[0015] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0016] The optical chip detection equipment of the present invention has a small size and a low manufacturing cost, can perform high-precision and stable detection of optical chips, and can quickly detect the uniformity of performance parameters, zero-order energy, and contrast of optical chips with higher detection accuracy. In addition, the presence of the positioning part in the present invention can stably position the optical chip, thereby improving the detection accuracy of the optical chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the clamp of the preferred embodiment of the utility model;

[0020] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 This is a structural schematic diagram of a positioning part of a preferred embodiment of the utility model;

[0022] In the figure: 10, fixture; 11, outer circular body; 12, inner circular body; 121, edge protrusion; 20, detection part; 21, laser; 22, light screen; 23, area array camera; 30, base; 40, mounting block; 50, bracket; 60, positioning part; 61, positioning spring; 62, positioning block; 621, inclined surface. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] The present embodiment provides an optical chip detection device, which has a small size and a low manufacturing cost, can perform high-precision and stable detection of optical chips, and can quickly detect the uniformity of performance parameters, zero-order energy, and contrast of optical chips with higher detection accuracy. In addition, the presence of the positioning portion 60 in the utility model can stably position the optical chip, thereby improving the detection accuracy of the optical chip.

[0025] Combination Figures 1 to 4 As shown, the optical chip detection device of this embodiment includes a fixture 10 and a detection unit 20. The fixture 10 can install and position the optical chip, and the detection unit 20 can detect the optical chip.

[0026] In this embodiment, the optical chip detection device further includes a base 30 , the fixture 10 and the detection unit 20 are both disposed on the base 30 , and the detection unit 20 is connected to the base 30 via a bracket 50 .

[0027] Combination Figure 1 , Figure 2 as well as Figure 3 As shown, the fixture 10 of this embodiment includes an outer circular body 11 and an inner circular body 12. The outer circular body 11 and the inner circular body 12 are concentrically arranged. The inner circular body 12 is arranged in the cavity of the outer circular body 11. A positioning cavity is provided at the center of the inner circular body 12 to position the optical chip. The inner circular body 12 of this embodiment is embedded in the cavity of the outer circular body 11, and the positioning cavity at the center of the inner circular body 12 is used for positioning the optical chip. The outer circular body 11 is arranged on the base 30 through a plurality of mounting blocks 40, thereby realizing the installation of the fixture 10.

[0028] Specifically, a mounting slot is provided on the mounting block 40 , and the mounting slot is engaged with the edge of the outer circumferential body 11 to mount the outer circumferential body 11 on the base 30 .

[0029] In this embodiment, a plurality of edge protrusions 121 are provided on the inner circular body 12, and the edge protrusions 121 are distributed along the edge of the positioning cavity to support the optical chip. A plurality of positioning parts 60 are provided on the inner circular body 12, and the positioning parts 60 are distributed at intervals along the circumference of the positioning cavity to position the optical chip. After the optical chip is placed on the edge protrusions 121 of the inner circular body 12, the positioning parts 60 press and position the optical chip to facilitate the smooth progress of subsequent detection operations.

[0030] Specifically, the positioning portion 60 includes a positioning spring 61 and a positioning block 62. The positioning spring 61 is installed in the inner circular body 12. The positioning block 62 faces the optical chip. An inclined surface 621 is provided on the positioning block 62. The inclined surface 621 is set upward to facilitate the optical chip to enter the positioning cavity. When the optical chip enters the positioning cavity, the positioning block 62 is squeezed by the inclined surface 621, so that the optical chip enters the positioning cavity smoothly. When the optical chip completely enters the positioning cavity, under the action of the positioning spring 61, the edge of the optical chip is squeezed and positioned by the positioning block 62.

[0031] In this embodiment, the detection unit 20 includes a laser 21, a light screen 22 and an area array camera 23. The laser 21 and the area array camera 23 are arranged in the same plane to detect the optical chip. The light screen 22 is located between the laser 21 and the fixture 10. The laser 21 of this embodiment is a 940nm infrared laser 21, which is 20mm away from the optical chip, and the light screen 22 is 15mm away from the optical chip. With the coordinated use of the laser 21, the light screen 22 and the area array camera 23, the uniformity of performance parameters, zero-order energy and contrast of the optical chip are quickly detected.

[0032] In actual use of the optical chip detection equipment of this embodiment, the optical chip is installed and positioned by the fixture 10. Specifically, the optical chip is placed in the positioning cavity at the center of the inner circular body 12, and the edge of the optical chip is pressed and positioned by the positioning part 60. After the positioning is completed, the laser 21, light screen 22 and area array camera 23 of the detection part 20 can detect the optical chip.

[0033] In summary, the optical chip detection equipment of this embodiment has a small size and a low manufacturing cost. It can perform high-precision and stable detection of optical chips, and quickly detect the uniformity of performance parameters, zero-order energy and contrast of optical chips with higher detection accuracy. In addition, the presence of the positioning part 60 in the utility model can stably position the optical chip and improve the detection accuracy of the optical chip.

[0034] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An optical chip detection device, characterized in that: include A fixture (10), the fixture (10) comprising an outer circular body (11) and an inner circular body (12), the outer circular body (11) and the inner circular body (12) being arranged concentrically, the inner circular body (12) being arranged in a cavity of the outer circular body (11), and a positioning cavity being arranged at a central position of the inner circular body (12) for positioning the optical chip; A detection unit (20), the detection unit (20) comprising a laser (21), a light screen (22) and an area array camera (23), the laser (21) and the area array camera (23) being arranged in the same plane to detect the optical chip, and the light screen (22) being located between the laser (21) and the fixture (10).

2. The optical chip detection device according to claim 1, characterized in that: It also comprises a base (30), the outer circular body (11) is arranged on the base (30) via a plurality of mounting blocks (40), and the detection part (20) is connected to the base (30) via a bracket (50).

3. The optical chip detection device according to claim 2, characterized in that: The mounting block (40) is provided with a mounting slot, and the mounting slot engages with the edge of the outer circular body (11) to mount the outer circular body (11) on the base (30).

4. The optical chip detection device according to claim 1, characterized in that: The inner circular body (12) is provided with a plurality of edge protrusions (121), and the edge protrusions (121) are distributed along the edge of the positioning cavity to support the optical chip.

5. The optical chip detection device according to claim 1, characterized in that: A plurality of positioning parts (60) are arranged on the inner circular body (12), and the positioning parts (60) are distributed at intervals along the circumference of the positioning cavity to position the optical chip.

6. The optical chip detection device according to claim 5, characterized in that: The positioning portion (60) comprises a positioning spring (61) and a positioning block (62); the positioning spring (61) is installed in the inner circular body (12); and the positioning block (62) faces the optical chip.

7. The optical chip detection device according to claim 6, characterized in that: The positioning block (62) is provided with an inclined surface (621), and the inclined surface (621) is arranged upwards to facilitate the optical chip to enter the positioning cavity.

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