Title:
WEARABLE DEVICE, AND UNMANNED AERIAL VEHICLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/058938
Kind Code:
A1
Abstract:
A wearable device (100), and unmanned aerial vehicle system (200). The wearable device (100) has an optical component (30, 06) having a designated portion of a surface thereof roughened to cause diffuse reflection. Therefore, even if an incident angle of a transmitted light beam from a front surface of the optical component (30, 06) on a rear surface thereof is close to the critical angle, the light beam is diffusely reflected by the roughened surface because of the roughening treatment performed on the rear surface of the optical component (30, 06), thus preventing a ghosting phenomenon by means of diffuse reflection disabling formation of a clear secondary image. Furthermore, the roughening treatment performed on the surface of the optical component (30, 06) causes portions of light emitted by a second screen (20) to a first eyepiece (40) and light emitted by a first screen (10) to a second eyepiece (50) to be blocked, thus eliminating ghosting images of the second screen (20) and first screen (10).
Inventors:
JIANG MENGYAO (CN)
LIU HUAIYU (CN)
LIU HUAIYU (CN)
Application Number:
PCT/CN2017/080452
Publication Date:
April 05, 2018
Filing Date:
April 13, 2017
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G02B27/01; G02B30/25
Foreign References:
| US20110199547A1 | 2011-08-18 | |||
| CN103033937A | 2013-04-10 | |||
| CN205942090U | 2017-02-08 | |||
| CN201518076U | 2010-06-30 | |||
| CN203941346U | 2014-11-12 | |||
| CN103718083A | 2014-04-09 | |||
| JP4627334B1 | 2011-02-09 | |||
| US20070252953A1 | 2007-11-01 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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