Catadioptric head-mounted display optical system for rendering three-dimensional scenes

Abstract

The present invention discloses a catadioptric head-wearing display optical system for displaying a three-dimensional scene. The system comprises left and right sets of optical systems with same structures, wherein the optical systems are symmetrically arranged; each optical system includes one display screen, one free-form surface reflector and an optics lens; the free-form surface reflector is disposed at front of the optics lens, and the display screen is disposed at the front side of the optical lens; the normal direction of the display screen is perpendicular to the normal direction of the optical lens, and angles of inclination are formed between the normal direction of the free-form surface reflector and the display screen and between the normal direction of the free-form surface reflector and the optics lens; and the light ray emitted by the display screen is reflected by the free-form surface reflector to generate turning, and enters human's eyes after being reflected by the optics lens. The catadioptric head-wearing display optical system for displaying a three-dimensional scene is able to reduce the size and the weight of a virtual reality helmet, is simple in structure, light in design and low in cost, and is applicable to industrialization production.

Description

technical field [0001] The invention relates to an optical structure in a virtual reality helmet, in particular to a catadioptric head-mounted display optical system for presenting three-dimensional scenes. Background technique [0002] Virtual Reality (VR) technology is a computer-generated, interactive and immersive visual virtual environment proposed in the 1980s. It can generate a variety of virtual environments as required and is widely used in urban planning. , driving training, interior design and other fields. In recent years, with the development of computer computing power and various types of sensors, various types of virtual reality helmets have appeared on the market, which are basically composed of a display screen or a mobile phone and a pair of eyepieces, through which the human eye can see the enlarged images on the screen. For images, the sensor senses the changes of the human head and adjusts the images on the left and right screens, so that the human eye...

AI Technical Summary

Problems solved by technology

[0003] At present, the optical structure of virtual reality helmets on the market is basically the human eye. The normals of the lenses and the screen are collinear. The lenses are generally single-lens, so the edges of the image are often not clear enough. The dispersion will become larger and larger, which greatly limits the user's visual experience. In order to enhance the sense of immersion and reduce the size of the device, more complex optical structures must be adopted

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