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. 31, 2005
Filed:
Mar. 19, 2004
Yuko Mori, Tokyo-To, JP;
Katsunori Shintani, Tokyo-To, JP;
Yuko Mori, Tokyo-To, JP;
Katsunori Shintani, Tokyo-To, JP;
Abstract
A lenticular lens sheetcomprises a plurality of lens elements of incidencearranged on the incidence side, and a plurality of lens elements of emergencearranged on the emergence side. The light that has passed through each lens element of incidenceconverges via the protruding apex of the corresponding lens element of emergence. The lens plane of the center portion C of each lens element of emergence, the width of this portion C being a half of the total lens width L (i.e., L/2), is in the shape defined by a curved line fulfilling the conditions expressed by the following numerical formulae (1) to (4), and the lens plane of each side portion S of each lens element of emergence, the width of this portion S being a quarter of the total lens width L (i.e., L/4), is in the shape defined by a curved line fulfilling the conditions expressed by the following numerical formulae (5) to (8): y=a×b−e (−L/4≦x≦0) . . . (1), y=a×b−e (0≦x≦L/4) . . . (2), 3.0×10<a<3.8×10. . . (3), 1.0×10<b<1.0×10. . . (4), y=c×d−e (−L/2≦x≦−L/4) . . . (5), y=c×d−e (L/4≦x≦L/2) . . . (6), 3.0×10<c<3.1×10. . . (7), and 2.7×10<d<4.0×10. . . (8).