Head-mounted display device

Abstract

The invention provides a head-mounted display device, which comprises a main frame and an optical system arranged on the main frame. A device fixing mechanism is arranged on the main frame, and a mobile terminal is arranged on the outer side of the optical system. The optical system comprises two optical lens groups. Each optical lens group comprises a Fresnel lens and a positive lens, wherein the Fresnel lens and the positive lens are arranged oppositely. The end surface of one side of the Fresnel lens, deviating from the positive lens, is in the form of a plane, while the end surface of the other side of the Fresnel lens is in the form of a radially symmetric Fresnel surface. The end surface of one side of the positive lens, deviating from the Fresnel lens, is in the form of a plane, while the end surface of the other side of the positive lens is in the form of a non-spherical surface. According to the invention, on the premise that the head-mounted display device is small enough in size and light enough in weight, the large-view field of a head-mounted virtual reality display system is realized. Meanwhile, the technical problem of imaging quality is solved at the same time.

Description

technical field [0001] The invention belongs to the technical field of virtual reality, and in particular relates to a head-mounted display device. Background technique [0002] In recent years, virtual reality (Virtual Reality, referred to as VR) technology is attracting more and more attention as a new high-tech. The sensory simulation allows users to observe things in three-dimensional space in a timely and unlimited manner as if they were on the scene. The application of this technology on mobile phones will become the focus of the next round of research. [0003] With the development of 3D display technology, head-mounted displays with stereoscopic vision functions are gradually entering people's work and life. The head-mounted display is a large-screen portable high-immersion stereoscopic image display device that is applied in various fields. A portable head-mounted display (Head-Mounted Display, HMD) is formed by using a head-mounted auxiliary device together with...

AI Technical Summary

Problems solved by technology

The system is limited by optical processing technology and optical materials. The aperture of the optical system in the display device is usually made relatively small (if the aperture is enlarged, the weight and volume of the optical system will increase significantly), and the user can use the optical system through the optical system. The observed field of view is limited by its caliber, and the observation field of view is relatively small compared to the natural field of view of the human eye. Therefore, the visual impact and immersion brought to the human eye by the image display system with a limited field of view will be greatly affected

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