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. 29, 2010
Filed:
Jun. 28, 2006
Yuki Katsura, Mihara, JP;
Futoshi Osawa, Higashihiroshima, JP;
Yuki Katsura, Mihara, JP;
Futoshi Osawa, Higashihiroshima, JP;
Dai Nippon Printing Co., Ltd., Shinjuku-Ku, JP;
Abstract
A lenticular lens comprises multiple convex unit lenses, two sides of each unit lens being curved surfaces gradually spreading outwardly from the upside (plane of emergence) to the base (plane of incidence) of the unit lens, and these unit lenses are disposed on a base film in parallel with each other. The acute angle θ between a tangent to two curves corresponding to the two sides of the unit lens on its section vertical to the longer direction and a line parallel to the upside (or the base) of the unit lens is in a range represented by the following inequality:139()−176()+78()+74.4 >θ>346()−469()+219()+45.0where d is the length of half of the distance between the two curves, and p is the pitch at which the unit lenses are disposed.