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.

Date of Patent:
Feb. 02, 2021

Filed:

Oct. 17, 2019
Applicant:

Ecole Polytechnique Federale DE Lausanne (Epfl), Lausanne, CH;

Inventors:

Christophe Moser, Lausanne, CH;

Demetri Psaltis, Préverenges, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02F 1/025 (2006.01);
U.S. Cl.
CPC ...
G02F 1/025 (2013.01); G02B 27/0172 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0138 (2013.01);
Abstract

A retinal projector system, comprising a coupling means, a spacial light modulator, and a tapered optical waveguide having an input side surface and an output side surface, whereby the input side surface is larger than the output side surface, the coupling means being configured to couple coherent light into the spatial light modulator, the spacial light modulator being configured to receive the coherent light and output modulated light modulated in 2 dimensions towards the input side surface, the tapered optical waveguide being configured to guide the modulated light received at the input side surface and reduce a size of the tapered optical waveguide towards the output side surface, without losing any information from the modulated light at the output side surface such to allow an image formation.


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