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:
May. 01, 2012
Filed:
Mar. 27, 2008
Applicants:
Runa Nakamura, Tokyo-to, JP;
Naoyuki Mitsuyasu, Tokyo-to, JP;
Satoko Maenishi, Tokyo-to, JP;
Nobuaki Nakao, Kanagawa-ken, JP;
Inventors:
Runa Nakamura, Tokyo-to, JP;
Naoyuki Mitsuyasu, Tokyo-to, JP;
Satoko Maenishi, Tokyo-to, JP;
Nobuaki Nakao, Kanagawa-ken, JP;
Assignee:
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01); G03B 21/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sheet-like optical member being difficult to damage a shape of a lens part. The sheet-like optical member includes: a substrate; and a lens part, which is formed on the substrate, is made of an active energy ray-curable resin, and has a plurality of unit prisms. The maximum logarithmic attenuation rate ΔE of the lens part measured by a rigid body pendulum method is 0.4 or less.