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:
Oct. 12, 2010
Filed:
Mar. 27, 2007
Katsumi Inoue, Minami-Ashigara, JP;
Jun Watanabe, Minami-Ashigara, JP;
Tetsuya Asakura, Minami-Ashigara, JP;
Daiki Wakizaka, Minami-Ashigara, JP;
Hideyasu Ishibashi, Ashigarakami-gun, JP;
Isao Ikuhara, Minami-Ashigara, JP;
Katsumi Inoue, Minami-Ashigara, JP;
Jun Watanabe, Minami-Ashigara, JP;
Tetsuya Asakura, Minami-Ashigara, JP;
Daiki Wakizaka, Minami-Ashigara, JP;
Hideyasu Ishibashi, Ashigarakami-gun, JP;
Isao Ikuhara, Minami-Ashigara, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
A light-scattering film is provided and includes a transparent support having thereon at least a light-scattering layer. When substantially parallel light is incident on a surface of the film at an incident angle of 5°, the reflectance for an angle θ in the light-receiving part measured in a plane containing the film normal line and the incident direction is R(θ), the value obtained by normalizing R(θ) by the reflectance of regular reflection is Rrel(θ), and the value calculated from the maximum variation |dRrel(θ)/dθ|max for the angle θ is a scattering coefficient A (formula 1), the reflection coefficient B (formula 2) calculated from the scattering coefficient A and the 5° specular reflectance Rs is from 2.0 to 5.0.Scattering coefficient=1/(10rel(θ)/θ|max)  (Formula 1)Reflection coefficient=2.2×log 10()−7.5×log 10()+5.9  (Formula 2)