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:
Oct. 22, 2019
Filed:
May. 05, 2014
Luminit Llc, Torrance, CA (US);
Fedor Dimov, Redondo Beach, CA (US);
Engin Arik, Thousand Oaks, CA (US);
Jun Ai, Lakewood, CA (US);
Xiaowei Xia, San Pedro, CA (US);
Neven Rakuljlc, Santa Ana, CA (US);
Chris Griffo, Torrance, CA (US);
Jay Perlin, San Jose, CA (US);
Leo Katsenelenson, Los Angeles, CA (US);
Stanley Tafeng Kao, Torrance, CA (US);
Chinmaya Dharmadhikari, Torrance, CA (US);
LUMINIT LLC, Torrance, CA (US);
Abstract
Multiple pairs of substrate-guided wave-based holograms (SGWHs) are laminated to a common thin substrate to form a transparent substrate-guided wave-based holographic CHMSL (SGWHC) that diffracts playback LED illumination over a wide angular range. This device is made pursuant to a technique that includes the steps of recording a first set of SGWHs with one setup, that upon playback, will couple and guide the diffracted light inside the substrate, and a second set of SGWHs recorded with another setup, that will diffract and couple the guided light out.