Title:
NEAR-TO-EYE DISPLAY OPTICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/109935
Kind Code:
A1
Abstract:
A near-to-eye display optical system, which relates to the field of optical engineering, and solves the problems of existing AR glasses of a small field-of-view, a small exit pupil diameter, and a bulky system. The near-to-eye display optical system comprises a display system and a spherical mirror; the spherical mirror has two surfaces, a first surface is a partially reflective surface, and a second surface is a transmissive surface; the display system is placed in front of the pupils, the display system is located on the focal plane of the spherical mirror, and the spherical centers of both the display system and the spherical mirror are located within a range of 1 cm from the pupil centers. The display system comprises linear array display pixels bonded onto a transparent substrate, a substrate extension part on the outer edge of the transparent substrate, an outer frame, a driving system and an electronic control system; and the driving system comprises a driven gear, a driving gear, a rotating bearing and a motor. The present application can achieve a large field-of-view, a large exit pupil diameter and a high resolution while keeping the glasses light, simple to make, low cost, easy to implement, and having fixed components, a stable structure, and no stray light interference.
Inventors:
YANG JIANMING (CN)
Application Number:
PCT/CN2020/132189
Publication Date:
June 10, 2021
Filing Date:
November 27, 2020
Export Citation:
Assignee:
GUANGGAN SHANGHAI TECH CO LTD (CN)
International Classes:
G02B27/01
Foreign References:
| CN110780447A | 2020-02-11 | |||
| CN109425985A | 2019-03-05 | |||
| CN105652450A | 2016-06-08 | |||
| US20160077336A1 | 2016-03-17 | |||
| CN111399228A | 2020-07-10 | |||
| CN212060744U | 2020-12-01 | |||
| CN207488620U | 2018-06-12 |
Attorney, Agent or Firm:
QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD. (CN)
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