Field curvature detection method, device and equipment of vr optical module

Abstract

The invention discloses a method, device and equipment for detecting field curvature of a VR optical module. The method includes: controlling a second electric control mechanism to drive an industrial camera to move, so that the optical axis of the lens of the industrial camera and the optical axis of the VR lens The axes are at different set angles, and when the optical axis of the industrial camera lens and the optical axis of the VR lens are at any set angle, the first electric control mechanism is controlled to drive the VR optical module to rotate to a different set angle, And obtain a series of images of the test pattern displayed on the VR display screen corresponding to each set angle taken by the industrial camera; determine the corresponding virtual image distance value based on each set of series images, and select the largest virtual image from all the determined virtual image distance values Distance value and minimum virtual image distance value; according to the maximum virtual image distance value and minimum virtual image distance value, determine the field curvature value of the VR optical module; check whether the assembly of the VR optical module meets the factory requirements according to the field curvature value of the VR optical module.

Description

technical field [0001] The present invention relates to the technical field of field curvature testing, and more specifically, to a method for detecting field curvature of a VR optical module, a device for detecting field curvature of a VR optical module, and a method for detecting field curvature of a VR optical module. Testing Equipment. Background technique [0002] In VR (Virtual Reality, virtual reality) products, the optical module is the core display component, including VR display and VR lens. Display, as the imaging component of the optical module, presents virtual images to human eyes through VR lenses. [0003] At present, in order to improve the user's sense of immersion, VR optical modules tend to have a large field of view. However, a VR optical module with a large field of view will produce a large field curvature, making the central field of view and the peripheral field of view The focus cannot be clear at the same time, that is, the distance between the e...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to improve the user's sense of immersion, VR optical modules tend to have a large field of view. However, a VR optical module with a large field of view will produce a large field curvature, making the center field of view and the edge field of view The focus cannot be clear at the same time, that is, the distance between the edge virtual image and the center virtual image seen by the user is relatively large, which leads to eye fatigue and poor user experience when the user wears the VR product for a long time

Images