A large field of view eyepiece optical system for virtual reality equipment

Abstract

The invention discloses a large-field-of-view eyepiece optical system for a virtual reality device, which comprises a plurality of lenses arranged on the same optical axis between the entrance pupil and the display screen, and several lenses arranged on the same optical axis between the entrance pupil and the display screen. The axis arrangement sequence is the first field lens, the second positive meniscus lens, the third convex lens, the fourth positive meniscus lens, the fifth negative meniscus lens, the sixth convex lens, the seventh positive lens, the eighth positive lens, the third Cemented lens, tenth field lens. The present invention adopts the eyepiece optical system in which the diaphragm is used as the entrance pupil, the rear group lens forms the display screen image as an intermediate image between the diaphragm and the rear group lens, and the front group lens presents the intermediate image as a magnified virtual image. According to this structural assumption, several lenses of the front group lens and the rear group lens are constructed to replace the original structure, and the size of the display screen is changed. Through the replacement of glass material, focal length scaling and optimization design of aberration control, the eyepiece optics with excellent image quality is finally achieved. system design.

Description

technical field [0001] The invention belongs to the technical field of optical eyepieces, in particular to a large field of view eyepiece optical system for virtual reality equipment. Background technique [0002] The virtual reality display device has two types of eyepiece optical systems, the lens mounted on the screen of the mobile phone and the lens mounted on the microdisplay chip. Among them, the OLED micro-display chip is equipped with eyepieces with several lenses for high-end virtual reality display devices, and with independent sensors and processors, it can achieve a strong sense of immersion. [0003] The optical system of the eyepiece with the diaphragm as the entrance pupil and the positive focal length lens group behind is simple in structure, but there is a problem of small field of view, and it is difficult to design when the field of view is more than 70 degrees. [0004] The virtual reality eyepiece system has high requirements on the image restoration ef...

AI Technical Summary

Problems solved by technology

[0003] The eyepiece optical system with the diaphragm as the entrance pupil and the positive focal length lens group behind is simple in structure, but there is a problem of small field of view, and it is difficult to design when the field of view is more than 70 degrees.

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