Extinction path difference multi-angle detection prism group and visual detection equipment

Abstract

The utility model relates to an extinction path difference multi-angle detection prism group and visual inspection equipment, which comprise an upper combined lens module, the upper combined lens module is arranged corresponding to a visual inspection camera, the lower side of the upper combined lens module is connected with a lower lens module, and the lower lens module comprises a group of side edge prisms arranged on two sides of the upper combined lens module. The side prism is provided with a refraction angle part; the upper combined lens module and the group of side prisms arranged on the two sides of the upper combined lens module are combined to form a fence type lens structure matched with the visual detection camera for use, and the fence type lens structure is matched with the visual detection camera to realize multi-angle product detection, so that an extinction path difference multi-angle detection prism group combined structure is formed.

Description

Technical Field

[0001] The utility model relates to an optical detection technology and equipment for use thereof, in particular to an optical path difference elimination multi-angle detection prism group and visual detection equipment. Background Art

[0002] In visual inspection, due to limitations in the venue and the location of the inspected items, some situations require the camera to be rotated during inspection or multiple cameras to be connected to assist in inspection, resulting in high actual inspection costs.

[0003] Therefore, it is necessary to provide a multi-angle detection prism assembly with zero optical path difference and multi-angle visual detection equipment to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-angle detection prism group with extinction optical path difference and visual detection equipment.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] One of the technical solutions is:

[0007] A multi-angle detection prism group with extinction of optical path difference comprises an upper combined lens module, the upper combined lens module is arranged corresponding to a visual inspection camera, a lower lens module is connected to the lower side of the upper combined lens module, the lower lens module comprises a group of side prisms arranged on both sides of the upper combined lens module, and the side prisms have a refractive angle portion; the upper combined lens module and the group of side prisms arranged on both sides of the upper combined lens module are combined to form a fence-type lens structure used in conjunction with the visual inspection camera, and cooperate with the visual inspection camera to realize product inspection at multiple angles, thereby forming a combined structure of the multi-angle detection prism group with extinction of optical path difference.

[0008] Furthermore, the upper combined lens module includes an upper lens and a lower lens connected by gluing.

[0009] Furthermore, the distance L1 from the object being detected to the side prism, the distance L2 from the reflected image to the lower lens, the thickness L3 and refractive index A of the lower lens, the distance L4 from the lower lens to the camera, the distance Y1 from the object being detected to the lower lens, the refractive index B of the lower lens, and the thickness Y2 of the upper lens.

[0010] Furthermore, the lower lens is used as a supporting portion for the upper lens.

[0011] Furthermore, the visual inspection camera takes pictures for visual inspection, and the optical path difference between the upper lens, lower lens, and side prism is consistent:

[0012] L1+L2+L3*A+L4=Y1+L3*A+Y2*B+(L4-Y2);

[0013] Y2=(L1+L2-Y1) / B-1;

[0014] The upper lens, lower lens and side prisms are combined to form a precisely set structure.

[0015] The second technical solution is:

[0016] A visual inspection equipment with an extinction path difference multi-angle detection prism group includes a visual inspection camera, and a multi-angle detection prism group with an extinction path difference is arranged below the visual inspection camera. The multi-angle detection prism group with an extinction path difference includes an upper combined lens module, and the upper combined lens module is arranged corresponding to the visual inspection camera. The lower side of the upper combined lens module is connected to a lower lens module, and the lower lens module includes a group of side prisms arranged on both sides of the upper combined lens module, and the side prisms have a refractive angle portion; the upper combined lens module and the group of side prisms arranged on both sides of the upper combined lens module are combined to form a fence-type lens structure used in conjunction with the visual inspection camera, and cooperate with the visual inspection camera to realize product inspection at multiple angles, forming a combined structure of the multi-angle detection prism group with an extinction path difference.

[0017] Furthermore, the upper combined lens module includes an upper lens and a lower lens connected by gluing.

[0018] Furthermore, the distance L1 from the object being detected to the side prism, the distance L2 from the reflected image to the lower lens, the thickness L3 and refractive index A of the lower lens, the distance L4 from the lower lens to the camera, the distance Y1 from the object being detected to the lower lens, the refractive index B of the lower lens, and the thickness Y2 of the upper lens.

[0019] Furthermore, the lower lens is used as a supporting portion for the upper lens.

[0020] Furthermore, the visual inspection camera takes pictures for visual inspection, and the optical path difference between the upper lens, lower lens, and side prism is consistent:

[0021] L1+L2+L3*A+L4=Y1+L3*A+Y2*B+(L4-Y2);

[0022] Y2=(L1+L2-Y1) / B-1;

[0023] The upper lens, lower lens and side prisms are combined to form a precisely set structure.

[0024] Compared with the existing technology, the present invention can effectively solve the high cost problem caused by the combined use of multiple cameras, while reducing the installation space, eliminating the optical path difference, effectively improving the detection accuracy, and effectively improving the detection efficiency through single-camera detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present utility model.

[0026] Figure 2 It is a schematic diagram of the optical path of the present utility model. DETAILED DESCRIPTION

[0027] Example 1:

[0028] See Figure 1 This embodiment shows a multi-angle detection prism group with extinction of optical path difference, including an upper combined lens module 100, which is arranged corresponding to a visual inspection camera 200, and a lower lens module 300 is connected to the lower side of the upper combined lens module 100, and the lower lens module 300 includes a group of side prisms 1 arranged on both sides of the upper combined lens module 100, and the side prisms 1 have a refractive angle portion 10; the upper combined lens module 100 and the group of side prisms 1 arranged on both sides of the upper combined lens module 100 are combined to form a fence-type lens structure used in conjunction with the visual inspection camera, and cooperate with the visual inspection camera 200 to realize product inspection at multiple angles, forming a combined structure of a multi-angle detection prism group with extinction of optical path difference.

[0029] The upper combined lens module 100 includes an upper lens 2 and a lower lens 3 connected by gluing.

[0030] See Figure 2 , the distance L1 from the object to be detected 400 to the side prism 1, the distance L2 from the reflected image to the lower lens 3, the thickness L3 and refractive index A of the lower lens 3, the distance L4 from the lower lens 3 to the camera 200, the distance Y1 from the object to be detected 400 to the lower lens 3, the refractive index B of the upper lens 2, and the thickness Y2 of the upper lens 2.

[0031] The lower lens 3 is used as a bearing and supporting portion for the upper lens 2 .

[0032] See Figure 2 The visual inspection camera takes pictures for visual inspection. The optical path differences between the upper lens 2, the lower lens 3, and the side prism 1 are consistent:

[0033] L1+L2+L3*A+L4=Y1+L3*A+Y2*B+(L4-Y2);

[0034] Y2=(L1+L2-Y1) / B-1;

[0035] The upper lens, lower lens and side prisms are combined to form a precisely set structure.

[0036] Example 2:

[0037] See Figure 1A visual inspection equipment with an extinction path difference multi-angle detection prism group includes a visual inspection camera 200, and a multi-angle detection prism group with an extinction path difference is arranged below the visual inspection camera 200. The multi-angle detection prism group with an extinction path difference includes an upper combined lens module 100, and the upper combined lens module 100 is arranged corresponding to the visual inspection camera 200. The lower side of the upper combined lens module 100 is connected to the lower side of the upper combined lens module 100. The lower lens module 300 includes a group of side prisms 1 arranged on both sides of the upper combined lens module 100, and the side prism 1 has a refractive angle portion 10; the upper combined lens module 100 and the group of side prisms 1 arranged on both sides of the upper combined lens module 100 are combined to form a fence-type lens structure used in conjunction with the visual inspection camera, which cooperates with the visual inspection camera 200 to realize product inspection at multiple angles, forming a combined structure of the multi-angle detection prism group with an extinction path difference.

[0038] The upper combined lens module 100 includes an upper lens 2 and a lower lens 3 connected by gluing.

[0039] See Figure 2 , the distance L1 from the object to be detected 400 to the side prism 1, the distance L2 from the reflected image to the lower lens 3, the thickness L3 and refractive index A of the lower lens 3, the distance L4 from the lower lens 3 to the camera 200, the distance Y1 from the object to be detected 400 to the lower lens 3, the refractive index B of the upper lens 2, and the thickness Y2 of the upper lens 2.

[0040] The lower lens 3 is used as a bearing and supporting portion for the upper lens 2 .

[0041] See Figure 2 The visual inspection camera takes pictures for visual inspection. The optical path differences between the upper lens 2, the lower lens 3, and the side prism 1 are consistent:

[0042] L1+L2+L3*A+L4=Y1+L3*A+Y2*B+(L4-Y2);

[0043] Y2=(L1+L2-Y1) / B-1;

[0044] The upper lens, lower lens and side prisms are combined to form a precisely set structure.

[0045] Compared with the existing technology, the present invention can effectively solve the high cost problem caused by the combined use of multiple cameras, while reducing the installation space, eliminating the optical path difference, effectively improving the detection accuracy, and effectively improving the detection efficiency through single-camera detection.

[0046] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A prism assembly with zero optical path difference and multi-angle detection, characterized by: It includes an upper combined lens module, which corresponds to the visual inspection camera setting. The lower side of the upper combined lens module is connected to the lower side of the upper combined lens module. The lower lens module includes a group of side prisms arranged on both sides of the upper combined lens module, and the side prisms have a refractive angle portion; the upper combined lens module and the group of side prisms arranged on both sides of the upper combined lens module are combined to form a fence-type lens structure used in conjunction with the visual inspection camera, and cooperate with the visual inspection camera to realize product inspection at multiple angles, forming a multi-angle detection prism group combination structure with zero optical path difference.

2. The multi-angle detection prism assembly with zero optical path difference according to claim 1, characterized in that: The upper combined lens module includes an upper lens and a lower lens connected by gluing.

3. The multi-angle detection prism assembly with zero optical path difference according to claim 2, characterized in that: The distance L1 from the object being tested to the side prism, the distance L2 from the reflected image to the lower lens, the thickness L3 and refractive index A of the lower lens, the distance L4 from the lower lens to the camera, the distance Y1 from the object being tested to the lower lens, the refractive index B of the lower lens, and the thickness Y2 of the upper lens.

4. The multi-angle detection prism assembly with zero optical path difference according to claim 3, characterized in that: The lower lens is used as a supporting part for the upper lens.

5. The multi-angle detection prism assembly with zero optical path difference according to claim 3, characterized in that: The visual inspection camera takes pictures for visual inspection. The optical path difference between the upper lens, lower lens and side prism is consistent: L1+L2+L3*A+L4=Y1+L3*A+Y2*B+(L4-Y2); Y2=(L1+L2-Y1) / B-1; The upper lens, lower lens and side prisms are combined to form a precisely set structure.

6. A visual inspection equipment with a multi-angle detection prism assembly and extinction path difference, characterized by: It includes a visual inspection camera, and a multi-angle detection prism group with an extinction path difference is arranged below the visual inspection camera. The multi-angle detection prism group with an extinction path difference includes an upper combined lens module, and the upper combined lens module corresponds to the visual inspection camera setting. The lower side of the upper combined lens module is connected to the lower side of the upper combined lens module. The lower lens module includes a group of side prisms arranged on both sides of the upper combined lens module, and the side prisms have a refractive angle portion; the upper combined lens module and the group of side prisms arranged on both sides of the upper combined lens module are combined to form a fence-type lens structure used in conjunction with the visual inspection camera, which cooperates with the visual inspection camera to realize product inspection at multiple angles, forming a combined structure of the multi-angle detection prism group with an extinction path difference.

7. The visual inspection equipment of the multi-angle detection prism assembly with zero optical path difference according to claim 6, characterized in that: The upper combined lens module includes an upper lens and a lower lens connected by gluing.

8. The visual inspection equipment of the multi-angle detection prism assembly with zero optical path difference according to claim 7, characterized in that: The distance L1 from the object being tested to the side prism, the distance L2 from the reflected image to the lower lens, the thickness L3 and refractive index A of the lower lens, the distance L4 from the lower lens to the camera, the distance Y1 from the object being tested to the lower lens, the refractive index B of the lower lens, and the thickness Y2 of the upper lens.

9. The visual inspection equipment of the multi-angle detection prism assembly with zero optical path difference according to claim 8, characterized in that: The lower lens is used as a supporting part for the upper lens.

10. The multi-angle visual inspection equipment according to claim 9, characterized in that: The visual inspection camera takes pictures for visual inspection. The optical path difference between the upper lens, lower lens and side prism is consistent: L1+L2+L3*A+L4=Y1+L3*A+Y2*B+(L4-Y2); Y2=(L1+L2-Y1) / B-1; The upper lens, lower lens and side prisms are combined to form a precisely set structure.

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