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:
Feb. 18, 2003
Filed:
Aug. 23, 2001
Applicant:
Inventors:
Assignee:
Stanley Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/331 ;
U.S. Cl.
CPC ...
H01L 2/331 ;
Abstract
A light diffusion sheet receives light fluxes radiated from a light radiating element at a first plane of the light diffusion sheet and scatters or diffracts the received light fluxes, and radiates the scattered or diffracted light from an opposite second plane. A light distributing member distributes the light radiated from the second plane of the light diffusion sheet along some direction. A light radiating device is provided which has a relatively large light beam spot.
Liang, Ji. (2003). Light radiating device with large beam spot size and spatial optical communication device (U.S. Patent No. 6520670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6520670
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile