Eyepiece with expanded field angle
A field of view and eyepiece technology, applied in the field of eyepieces, can solve problems such as insufficient field of view, insufficient field of view, large distortion and aberration, etc., to optimize the eyepiece structure, protect eyesight, and reduce chromatic aberration.
Inactive Publication Date: 2015-09-09
SHANGHAI NOVA OPTICS TECH
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Problems solved by technology
Among them, the helmet display component is the key to the realization of the virtual reality look and feel. However, the eyepieces in the popular helmet-mounted displays currently on the market have problems such as the field of view is not large enough, the field of view is not wide enough, and the distortion aberration is large, etc., which cannot provide users with Good virtual reality look and feel experience
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[0032] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with the accompanying drawings.
[0033] see figure 1 , an eyepiece for expanding the field of view, comprising an eyepiece main body, the front end surface of the eyepiece main body is a first curved surface 1, the rear end surface of the eyepiece main body is a second curved surface 2, and both the first curved surface 1 and the second curved surface 2 are rotationally symmetrical surfaces ; The center of the first curved surface 1 is convex, the edge of the first curved surface 1 is concave, and the second curved surface 2 is convex. The eyepiece structure adopted in the present invention is used for virtual reality device display, and the traditional double convex eyepiece structure is optimized. Under the premise of 2K resolution, within a specific space range, the disto...
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Abstract
The invention relates to the field of optical technology, and discloses an eyepiece with an expanded field angle, which comprises an eyepiece body. The front end surface of the eyepiece body is a first curved surface, the rear end surface of the eyepiece body is a second curved surface, and both the first curved surface and the second curved surface are rotary symmetrical surfaces. The center of the first curved surface is convex outwardly, the edge of the first curved surface is concave inwardly, and the second curved surface is convex outwardly. The eyepiece structure is used for virtual reality device display, the traditional dual-outward convex eyepiece structure is optimized, and on the premise of 2k resolution, in a specific space range, an optical lens with a distortion coefficient lower than 10%, color difference small, the field angle 120 DEG and magnification proper can be realized, and in a small eccentric range in a y direction, good imaging quality can be acquired.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to an eyepiece. Background technique [0002] Virtual reality is a computer system that can create and experience virtual worlds. The virtual reality system is an interactive virtual environment generated by a computer that acts on the user through sight, hearing, and touch to create an immersive feeling. Human-computer interaction in virtual reality goes far beyond the traditional mode of keyboard and mouse. Using digital helmets, digital gloves and other sensor devices, three-dimensional interactive technology, speech recognition, and voice input technology have become important means of human-computer interaction. Among them, the helmet display component is the key to the realization of the virtual reality look and feel. However, the eyepieces in the popular helmet-mounted displays currently on the market have problems such as the field of view is not large enough, the field of...
Claims
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Inventor 杨波舒新炜潘政行钱伟彭林生张婧京
Owner SHANGHAI NOVA OPTICS TECH