Virtual-reality display optics system

Abstract

The invention discloses a virtual-reality display optics system which comprises a liquid display screen, a lens combination and diaphragm which are sequentially arranged along the optic axis. Light rays sent out through the liquid crystal screen enter human eye pupils via the diaphragm after refraction of the lens combination, the lens combination comprises a convex lens and a meniscus lens, the front surface, opposite to the diaphragm, of the convex lens is of a Fresnel surface while the rear surface of the same is of an aspheric surface, and both the front surface and the rear surface of the convex lens are provided with preset inclined angles relative to the pitching direction perpendicular to the optic axis of the eye pupils; the front surface of the meniscus lens is opposite to the rear surface of the convex lens while the rear surface of the meniscus lens is opposite to the liquid crystal display. By the arrangement, optical aberration can be well corrected and reduced, small optical aberration is good in imaging quality, and imaging quality is improved; meanwhile, light paths are formed through the lens combination of the optics system with the Fresnel and aspheric surfaces, and field is enlarged through optimal design of software.

Description

technical field [0001] The invention relates to the field of optical technology, more specifically, to a virtual reality display optical system. Background technique [0002] At present, the key design points that must be considered when designing the optical system of a virtual reality display are large field of view, high transmittance, and high performance. The large field of view imaging is conducive to the high immersion experience of the wearer of the virtual reality helmet, and can provide a wealth of data information. The high transmittance is conducive to improving the light energy utilization rate of the image source module. Under the same visual brightness, the image source The output power of the module is low, and it can provide the wearer with a longer use time after being equipped with a lithium battery. The high performance is reflected in the optical performance characteristics of the optical system itself. Small size, high integration, etc. [0003] There...

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Problems solved by technology

[0004] However, the optical system of the virtual reality display in the prior art has aberrations such as coma, astigmatism and other vertical axes. Therefore, how to reduce the aberration of the optical system of the virtual reality display is a technical problem that those skilled in the art urgently need to solve

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