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Patent Searching and Data


Title:
EYEPIECE AND DISPLAY DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/010938
Kind Code:
A1
Abstract:
Disclosed is an eyepiece, comprises a lens (L1), the lens containing opposite first surface (S1) and second surface (S2), the first surface being a corresponding surface of a human eye side and the second surface being a corresponding surface of a display element side, wherein the first surface is a Fresnel structure face and the second surface is an aspherical curved face, the Fresnel structure face comprising a plurality of ring bands (Ci) arranged successively, thereby forming a sawtooth surface, the effective focal length (EFL) of the lens satisfying: 35mm˂EFL˂45mm. Further disclosed is a display device comprising the eyepiece.

Inventors:
SONG, Litong (No. 66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
HUANG, Lin (No. 66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
Application Number:
CN2018/072775
Publication Date:
January 17, 2019
Filing Date:
January 16, 2018
Export Citation:
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Assignee:
ZHEJIANG SUNNY OPTICAL CO., LTD (No. 66-68 Shunyu Road, YuyaoNingbo, Zhejiang 0, 315400, CN)
International Classes:
G02B25/00; G02B27/01
Foreign References:
CN107121774A2017-09-01
CN106405820A2017-02-15
CN106019567A2016-10-12
CN106526851A2017-03-22
CN106291940A2017-01-04
JP2013109101A2013-06-06
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (19 A, Tower A InDo Building,No. 48A Zhichun Road, Haidian District, Beijing 8, 100098, CN)
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