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. 22, 2011
Filed:
Jan. 22, 2008
Shinji Fujimoto, Shizuoka, JP;
Junichi Fujimori, Shizuoka, JP;
Tomohiro Mizuno, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The present invention provides an optical sheet that excels in a light convergence function or a light diffusion function, has excellent brightness increase ratio in the desired angular direction, in particular the front surface direction, and greatly inhibits the side lobe, and a method for manufacturing such an optical sheet with good efficiency and high accuracy. The optical sheet has a substrate that has a first surface having formed thereon a peak-valley portion that converges and scatters light and an optical adjustment portion that differs in an optical property from the substrate. A plurality of the optical adjustment portions are formed at least in part of a non-passage portion for the light in the substrate in the case where a parallel beam falls from the first surface in a direction normal to a surface located opposite the first surface.