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:
Jan. 25, 2011
Filed:
Apr. 20, 2006
Applicants:
Yoji Ito, Minami-Ashigara, JP;
Yoshiaki Hisakado, Minami-Ashigara, JP;
Yuta Takahashi, Minami-Ashigara, JP;
Inventors:
Yoji Ito, Minami-Ashigara, JP;
Yoshiaki Hisakado, Minami-Ashigara, JP;
Yuta Takahashi, Minami-Ashigara, JP;
Assignee:
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical film is provided and includes a transparent polymer film. The optical film has at least an A1 value defined by Re (450)/Re (550) of from 0.10 to 0.95 and A2 value defined by Re (650)/Re (550) of from 1.01 to 1.50. Re (λ) represents the retardation value of the film with respect to light having a wavelength of λ nm; and Rth (λ) is the retardation value in the thickness direction of film with respect to light having a wavelength of λ nm.