Prism calibration device and parallelism calibration method

A technology for calibration devices and calibration methods, which is applied to measuring devices, optical devices, instruments, etc., and can solve problems such as low calibration accuracy

Pending Publication Date: 2022-04-08
GOERTEK INC +1
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Problems solved by technology

[0004] The object of the present invention is to provide a prism calibration device and a parallelism calibra

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  • Prism calibration device and parallelism calibration method
  • Prism calibration device and parallelism calibration method
  • Prism calibration device and parallelism calibration method

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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] Figure 1 to Figure 8 is a schematic structural view of a prism calibration device in an embodiment of the present invention, wherein, figure 1 A schematic diagram showing a three-dimensional structure of a prism calibration device according to an embodiment of the present invention, figure 2 shows a schematic cross-sectional structure diagram of a prism calibration device according to an embodiment of the present invention, image 3 A schematic diagram showing an exploded structure of a prism calibration device according to an embodiment of the present invention, Figure 4 A structural ...

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Abstract

The invention belongs to the technical field of parallelism calibration, and particularly relates to a prism calibration device and a parallelism calibration method. The prism calibration device comprises a cylinder and at least two prism modules arranged in the cylinder at intervals in the axis direction of the cylinder, each prism module is provided with a semi-transparent and semi-reverse face, one side of each semi-transparent and semi-reverse face is an incidence side, and the other side of each semi-transparent and semi-reverse face is a transmission side. The semi-transparent and semi-reverse surfaces of the at least two prism modules are parallel, an included angle of 45 degrees is formed between the incident side of each semi-transparent and semi-reverse surface and the axis of the cylinder body, and a first calibration hole is formed in the side wall of the cylinder body corresponding to the incident side of each semi-transparent and semi-reverse surface; the parallelism calibration method comprises the following steps: step 1, fixedly connecting the end part of the incident side, corresponding to the semi-transparent and semi-reverse surface, of the cylinder with an autocollimator, and calibrating the prism module, and step 2, arranging a product to be calibrated corresponding to the prism calibration device, and respectively calibrating parts to be calibrated. The problem that an existing parallelism calibration tool is low in calibration precision is solved.

Description

technical field [0001] The invention belongs to the technical field of parallelism calibration, and in particular relates to a prism calibration device and a parallelism calibration method. Background technique [0002] More and more VR / AR products appear in daily life. Common VR / AR products have two VR / AR modules, which are binocular products. The installation accuracy between the two VR / AR modules directly affects the Accuracy and user experience performance of VR / AR products. [0003] At present, the two VR / AR modules are positioned through two module installation tools, and then the two VR / AR modules and the frame are glued and installed based on this position. Therefore, in order to ensure that the two VR / AR modules Parallel between the groups, first of all, it is necessary to ensure the parallel between the two module installation tools. The traditional mechanical calibration uses a dial indicator and a marble measuring tool to adjust the parallelism between the two ...

Claims

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Application Information

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IPC IPC(8): G01B11/27G01M11/02
Inventor 赵连军刘家秀刘希琛李德俊王锋辉
Owner GOERTEK INC
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