The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2023
Filed:
Dec. 04, 2018
Applicant:
Dispelix Oy, Espoo, FI;
Inventors:
Juuso Olkkonen, Espoo, FI;
Kasimir Blomstedt, Espoo, FI;
Assignee:
DISPELIX OY, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 1/11 (2015.01); G02B 27/00 (2006.01); G02B 27/42 (2006.01); G02B 1/115 (2015.01); G02B 5/18 (2006.01); F21V 8/00 (2006.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 1/11 (2013.01); G02B 1/115 (2013.01); G02B 5/1814 (2013.01); G02B 6/00 (2013.01); G02B 6/0038 (2013.01); G02B 27/0018 (2013.01); G02B 27/0081 (2013.01); G02B 27/0101 (2013.01); G02B 27/42 (2013.01); G02B 27/4205 (2013.01); G02B 2027/012 (2013.01);
Abstract
The invention relates to a diffractive waveguide display device comprising an image projector capable of emitting laser rays at one or more wavelengths, a waveguide body having a first surface and an opposite second surface and adapted to guide said laser rays from the image projector between the first surface and the second surface, an out-coupling diffractive optical element on said first surface for coupling said laser rays out of the waveguide body, and an anti-interference coating () arranged on the second surface of the waveguide body aligned with the out-coupling diffractive optical element.