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:
Aug. 17, 2010
Filed:
Jul. 21, 2006
Applicants:
Hiroshi Abe, Otake, JP;
Takashi Saeki, Otake, JP;
Tsuyoshi Nakagawa, Tokyo, JP;
Norifumi Hirota, Otake, JP;
Inventors:
Hiroshi Abe, Otake, JP;
Takashi Saeki, Otake, JP;
Tsuyoshi Nakagawa, Tokyo, JP;
Norifumi Hirota, Otake, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/00 (2006.01); G02B 1/08 (2006.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plastic rod lens having a cylindrical shape with a radius R including a central axis; and an outer peripheral portion, wherein a refractive index ndecreases from the central axis to the outer peripheral portion, and the following requirements (1) to (3) are met:43≦ν≦60  (1)|{×ν/(−1)}−{×ν/(−1)}|<5  (2)≧0.01  (3)