VR/MR optical system of dual-element convex-concave lens and VR/MR device

Abstract

The invention provides a virtual reality / mix reality (VR / MR) optical system of a dual-element convex-concave lens. The system comprises a lens group module formed by a first convex lens approaching a diaphragm and a second concave lens at a distance to the first convex lens. The first convex lens is a positive-focal-length lens and the second concave lens is a negative-focal-length; the surface, opposite to the diaphragm, of the first convex lens is a spherical surface and the radius of curvature is R1 that is larger than 18mm and is smaller than 21mm; the surface, opposite to the second concave lens, of the first convex lens is a dual-curve aspheric surface; the surface, opposite to the first convex lens, of the second concave lens is a spherical surface is a dual-curve aspheric surface; and the surface, opposite to the screen, of the second concave lens is a spherical surface and the radius of curvature is R2 that is larger than 24 mm and is smaller than 27 mm. In addition, the invention also provides a VR / MR device having the optical system. Therefore, a problem that the experience is poor because of distortion and dispersion that exist in the optical part of virtual reality equipment or simulation equipment with high immersion and the optical part of mix reality equipment can be solved effectively and thus the good user experience effect can be realized.

Description

technical field [0001] The invention belongs to the technical field of virtual reality, and in particular relates to a VR / MR optical system with a double-element convex-concave lens and a virtual reality / mixed reality device with the optical system. Background technique [0002] Virtual reality (Virtual Reality, referred to as VR) is a high-tech that has emerged in recent years. It is an interactive and immersive visual virtual environment generated by computer simulation. It is an interactive three-dimensional dynamic scene that combines multi-source information. The system simulation of physical and physical behavior provides users with simulations of vision, hearing, touch and other senses, allowing users to observe things in the three-dimensional space in a timely and unlimited manner as if they were in the real scene. [0003] Mixed reality (Mix reality, MR for short) is a new visualization environment generated by merging the real and virtual worlds. Physical and digi...

AI Technical Summary

Problems solved by technology

At present, in the existing optical systems on the market, the lens material is generally made of plastic. Such an optical module will cause serious dispersion, and the distortion rate of the central area and the edge area of ​​​​the image is seriously different, resulting in image distortion, image deformation, and edge blur. The dizziness and nausea of ​​the patient, and the user experience becomes poor

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