Virtual-reality eyepiece designing and manufacturing method

Abstract

The invention relates to a virtual-reality eyepiece designing and manufacturing method. The virtual-reality eyepiece designing and manufacturing method includes: according to design requirements, designing an eyepiece with the field angle being around 90 degrees and conforming to optical performance requirements, wherein the eyepiece is provided with double convex aspheric surfaces; modifying one surface into a plane substrate Fresnel surface and simultaneously optimizing the parameter of the plane substrate Fresnel surface and the other surface parameter to acquire the eyepiece with the plane substrate Fresnel surface; modifying a plane substrate of the eyepiece into an aspheric substrate and simultaneously optimizing the aspheric substrate surface parameter, the Fresnel tooth parameter on the aspheric substrate and the other surface parameter to acquire the eyepiece with the aspheric substrate Fresnel surface; connecting all tooth tops of the aspheric substrate Fresnel surface in the eyepiece well designed and having the aspheric substrate Fresnel surface into a basic surface, and producing the eyepieces with the basic surfaces in batch by means of injection molding; cutting the basic surfaces in the eyepieces subjected to injection molding and provided with the basic surfaces with a single-point diamond to remove filling parts of the basic surfaces connected through the tooth tops.

Description

technical field [0001] The invention belongs to the technical fields of virtual reality, augmented reality, eyepiece imaging and the like. Background technique [0002] Virtual Reality (VR, Virtual Reality) is a three-dimensional virtual world generated by computer or mobile phone simulation, providing users with simulations of vision, hearing and other senses, so that users can observe in a timely and unlimited manner as if they were on the scene. objects in three-dimensional space. VR glasses are a key tool to realize virtual reality technology. Whether a VR glasses can make users feel immersive mainly depends on the design and manufacture of VR eyepieces. The shorter the focal length of the eyepiece, the greater the visual magnification, and the stronger the visual graininess; the larger the focal length, the smaller the magnification, and the worse the immersion. The existing eyepiece products mainly include two forms, one is a double-sided aspheric eyepiece, and the ...

AI Technical Summary

Problems solved by technology

The appearance of the plane-based Fresnel eyepiece solves the problem of the thickness ratio between the center and the edge, and the field of view can reach 110°, but with the increase of the field of view, the field curvature and coma will also increase

Imaging inconsistencies in the center and edges can cause users to feel dizzy

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