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:
Jul. 08, 2008
Filed:
Mar. 17, 2005
Joong-hyun Kim, Yongin-si, KR;
Hae-soo Ha, Suwon-si, KR;
Sang-yu Lee, Yongin-si, KR;
Seog-hyun Cho, Seoul, KR;
Joong-Hyun Kim, Yongin-si, KR;
Hae-Soo Ha, Suwon-si, KR;
Sang-Yu Lee, Yongin-si, KR;
Seog-Hyun Cho, Seoul, KR;
Abstract
A surface light source device includes a light source body, first and second electrodes, a light reflecting layer, and a fluorescent layer. The light source body is configured to generate light. The first and second electrodes are each disposed adjacent to a corresponding opposite end portion of the light source body. The first and second electrodes receive a discharge voltage that creates a potential difference across the light source body. The light reflecting layer is disposed at an internal surface of the light source body. The light reflecting layer includes light diffusing particles having at least two sizes. The fluorescent layer is disposed at selected regions of the light source body. Therefore, the light reflecting layer is not deformed by heat and enhances reflectivity without changing a color coordinates.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile