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:
Jun. 25, 2024
Filed:
Dec. 20, 2018
Applicant:
Dispelix Oy, Espoo, FI;
Inventor:
Kasimir Blomstedt, Espoo, FI;
Assignee:
DISPELIX OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/00 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0016 (2013.01); G02B 6/0036 (2013.01); G02B 27/0012 (2013.01); G02B 27/0081 (2013.01);
Abstract
The invention concerns a waveguide display and display element therefor, and a method of designing a waveguide element. The element comprises a waveguide and at least one grating arranged on or within the waveguide, the at least one grating being arranged to couple visible light into, within, and/or out of the waveguide. According to the invention, the period of the grating is in the range of 5 μm or more. The invention increases freedoms of design of grating-based display elements and allows for better color and FOV control.