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. 02, 2013
Filed:
May. 06, 2010
Shin-ichi Wakabayashi, Osaka, JP;
Seiji Nishiwaki, Hyogo, JP;
Masa-aki Suzuki, Osaka, JP;
Jyunpei Matsuzaki, Osaka, JP;
Tatsuya Nakamura, Osaka, JP;
Shin-ichi Wakabayashi, Osaka, JP;
Seiji Nishiwaki, Hyogo, JP;
Masa-aki Suzuki, Osaka, JP;
Jyunpei Matsuzaki, Osaka, JP;
Tatsuya Nakamura, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A surface of a transparent substratewhich is adjacent to a light emitting body has a surface structurethat is defined by dividing the surface into a plurality of linear segments of width w which are inclined so as to extend in a specific direction in a plane of the surface and dividing the linear segments into minute regions aligned along the longitudinal direction of the linear segments such that the largest inscribed circle of the minute regions has a diameter from 0.2 μm to 1.5 μm. Each of the minute regions is formed by a raised or recessed portion formed in the surface of the transparent substrate. The proportion of the raised portions and the proportion of the recessed portions, P and 1−P, are determined such that P is in the range of 0.4 to 0.98.