Stereopsis check method and device adopting symmetrical adjustable backlight structure

Abstract

A stereopsis check device adopting a symmetrical adjustable backlight structure comprises a symmetrical adjustable backlight device, a pupil position tracking module, a synchronization signal extraction module, a signal processing module and an image display screen. The symmetrical adjustable backlight device comprises a symmetrical adjustable optical component and an addressable light source component. The symmetrical adjustable optical component comprises a light guide module and a symmetrical adjustable imaging module. The light guide module comprises a collecting lens, a light guide device and a triangular prism. The symmetrical adjustable imaging module (M) comprises a lens, a lens switching device, an enoscope, a spectroscope and a refraction reflector. The signal processing module controls the addressable light source component in the adjustable backlight structure according to received pupil position information and a video synchronization signal. While a left image is displayed, the signal processing module lightens a corresponding luminescent unit according to left eye pupil position information, so that the light is converged at the left eye pupil. While a right image is displayed, the signal processing module lightens a corresponding luminescent unit according to right eye pupil position information, so that the light is converged at the right eye pupil.

Description

1. Technical field [0001] The invention relates to the technical field of information display, in particular to a stereoscopic inspection device using a symmetrical adjustable backlight structure. 2. Background technology [0002] Stereopia is the lack of stereo vision. The three-dimensional sense of a person is established in this way: both eyes look at an object at the same time, and the eyes of both eyes cross at one point, called the fixation point, and the light points reflected from the fixation point back to the retina correspond to each other. Compose a complete image of an object. Not only can you see this point clearly, but you can also distinguish the distance, depth, convexity, etc. between this point and the surrounding objects. The image formed in this way is a three-dimensional image. This kind of vision is called stereoscopic vision. Once people's binocular vision function is impaired and lacks stereo vision, the depth and distance of the scenery in the ext...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a multi-distance viewing stereo vision inspection device using a symmetrical adjustable backlight structure in order to solve the problems of single detection samples, limited detection distance, and monocular clues in the stereo blind detection process.

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