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. 03, 2013
Filed:
Mar. 16, 2012
Vladimir Yankov, Washington Township, NJ (US);
Alexander Goltsov, Troitsk, RU;
Igor Ivonin, Ybileinyi, RU;
Leonid Velikov, San Carlos, CA (US);
Vladimir Yankov, Washington Township, NJ (US);
Alexander Goltsov, Troitsk, RU;
Igor Ivonin, Ybileinyi, RU;
Leonid Velikov, San Carlos, CA (US);
Nano-Optic Devices, LLC, Washington Township, NJ (US);
Abstract
The frontlight illumination system is intended for enhancing illumination of a reflective display having pixels arranged in a matrix pattern and using monochromatic laser lights as light sources. The unit contains a network of light-distributing planar ridge waveguides with holograms arranged in a matrix pattern that corresponds to the matrix pattern of the reflective display. The light-distributing holograms of the system are formed on opposite sides of each core of respective light-distributing planar ridge waveguides. Neighboring holograms located on opposite sides of the core are combined into pairs and are arranged on each core in positions at which they interact with a predetermined phase shift that doubles the intensity of light directed to the reflective display and extinguishes light directed to the external surface.