Title:
PROJECTION DEVICE AND SMART GLASSES
Document Type and Number:
WIPO Patent Application WO/2022/068763
Kind Code:
A1
Abstract:
A projection device (400), comprising a display screen (100) and a first lens mechanism (300). The first lens mechanism (300) comprises a first diffractive-refractive lens (310) and a second diffractive-refractive lens (320). In the direction perpendicular to the display screen (100) and facing away from the display screen (100), the display screen (100), the first diffractive-refractive lens (310) and the second diffractive-refractive lens (320) are arranged in sequence. Light emitted from the display screen (100) is emitted by means of the first diffractive-refractive lens (310) and the second diffractive-refractive lens (320) in sequence. Also disclosed are smart glasses, comprising a glasses body (500) and a projection device (400). The glasses body (500) comprises glasses lenses (530). The glasses lenses (530) are opposite to the projection device (400), and light projected by the display screen (100) may be projected onto the glasses lenses (530) after passing through the first lens mechanism (300).
Inventors:
KONG DEQING (CN)
Application Number:
PCT/CN2021/120878
Publication Date:
April 07, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
VIVO MOBILE COMMUNICATION CO LTD (CN)
International Classes:
G02B27/01; G02B7/02
Foreign References:
| CN112180602A | 2021-01-05 | |||
| CN112188065A | 2021-01-05 | |||
| CN104503076A | 2015-04-08 | |||
| CN108604021A | 2018-09-28 | |||
| CN101583899A | 2009-11-18 | |||
| CN105572877A | 2016-05-11 | |||
| CN1936643A | 2007-03-28 | |||
| CN111552138A | 2020-08-18 | |||
| CN1766695A | 2006-05-03 |
Attorney, Agent or Firm:
COHORIZON INTELLECTUAL PROPERTY INC. (CN)
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