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Title:
ヘッドマウントディスプレイ用光学機器及びそれを拡張現実用に内蔵するヘッドマウント機器
Document Type and Number:
Japanese Patent JP7127049
Kind Code:
B2
Abstract:
The present invention relates to an optical device usable in a head-mounted display which comprises a light conducting element and at least one wafer, and to a head-mounted device which is configured to provide an informative display of augmented reality for a wearer of the head-mounted device and which comprises such an optical device. This optical device (1) comprises: - a light conducting element (4) which has two first and second opposite main faces (4a and 4b) and which inputs and conducts by total internal reflections a light (6) received from the light source (5) and partially outputs it out of said element, - at least one wafer (2, 3) which comprises an internal surface (2a, 3a) facing a said first main face of said light conducting element, and - interposition means in contact with said first main face and said internal surface and defining a gap (11a, 11b) optically isolating said element. According to the invention, said interposition means comprise a peripheral sealing arrangement (10a, 10b) which extends along its peripheral length between and in sealing contact with a peripheral area (2aa, 3aa) of said internal surface and a facing zone (4aa, 4ba) of said first main face, at least one portion of said sealing arrangement exhibiting a locally reduced optical coupling with said first main face to preserve said internal reflections at said at least one portion toward the inside of said element.

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Inventors:
Mathieu Mainen
Marius Prou
Dominic Uvac
Ludovic Joire
Marc Laigneau
Application Number:
JP2019546366A
Publication Date:
August 29, 2022
Filing Date:
March 09, 2018
Export Citation:
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Assignee:
Essilor Internacional
International Classes:
G02B27/02; G02B5/00; G02C7/14; G02C9/00; G02C11/00; H04N5/64
Domestic Patent References:
JP2009145513A
JP2012013460A
Foreign References:
WO2016075689A1
US20140168260
Attorney, Agent or Firm:
Murayama Yasuhiko
Shinya Mihiro
Tatsuhiko Abe



 
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