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:
Jun. 22, 2004
Filed:
Jul. 08, 2002
Shingo Suzuki, Iwata-gun, JP;
Toru Kunimochi, Iwata-gun, JP;
Minebea Company, Limited, Miyota-Machi, JP;
Abstract
There is provided a spread illuminating apparatus to make effective utilization of light emitted from a light source. A light reflection plate is provided along and close to a side surface of a light conductive member opposite to a side surface facing a transparent substrate, and has on a surface thereof a plurality of prismatic projections facing toward the light conductive member and arrayed along the longitudinal direction thereof. A reflection layer is formed on the projections. Light having penetrated inclined walls at the light conductive member is reflected by means of the reflection layer along the optical axis to be effectively utilized.