Title:
OPTICAL EYEPIECE SYSTEM CAPABLE OF SUPERPOSING OPTICAL PATHS AND HEAD-MOUNTED DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/141595
Kind Code:
A1
Abstract:
An optical eyepiece system capable of superposing optical paths and a head-mounted display device. The optical eyepiece system comprises an image surface (103), an auxiliary optical path (T), a spectroscope (101) and a main optical path (A) which are connected in sequence, wherein an optical axis of the image surface (103) coincides with an optical axis of the auxiliary optical path (T); an optical axis of the main optical path (A) is perpendicular to the optical axis of the auxiliary optical path (T); the optical axis of the main light path (A) is reflected by the spectroscope (101) and is superposed with the auxiliary light path (T) transmitted by the spectroscope (101); the main light path (A) comprises, from the spectroscope (101) to a micro image display (102), a first lens (106), a second lens (105) and a third lens (104) which are sequentially arranged in an optical axis direction; the first lens (106) and the third lens (104) are positive lenses; the second lens (105) is a negative lens; the auxiliary light path (T) comprises, from the image surface (103) to the spectroscope (101), a fourth lens (109), a fifth lens (108) and a sixth lens (107) which are sequentially arranged in the optical axis direction; and an image displayed by the micro image display (102) and a real object image captured by an object shape observation and photographing apparatus are displayed in a superposing mode, and the characteristics of being clearer in imaging, small in distortion and high in imaging quality are achieved in combination with feature relationships among all the optical components.
Inventors:
GUO JIANFEI (CN)
CAO HONGPENG (CN)
PENG HUAJUN (CN)
CAO HONGPENG (CN)
PENG HUAJUN (CN)
Application Number:
PCT/CN2020/142552
Publication Date:
July 07, 2022
Filing Date:
December 31, 2020
Export Citation:
Assignee:
SHENZHEN NADE OPTICAL CO LTD (CN)
International Classes:
G02B27/01; G02B25/00; G02B27/10
Foreign References:
| CN112630979A | 2021-04-09 | |||
| CN213934405U | 2021-08-10 | |||
| CN106338830A | 2017-01-18 | |||
| CN106338831A | 2017-01-18 | |||
| CN111474723A | 2020-07-31 | |||
| CN109188692A | 2019-01-11 | |||
| US8149403B2 | 2012-04-03 |
Attorney, Agent or Firm:
SHENZHEN DUOZHIHUI NEW INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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