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:
Jun. 06, 2006
Masataka Sato, Shizuoka, JP;
Masataka Sato, Shizuoka, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A first polymerizable composition is poured into a pipe (), then is polymerized to be a first layer (). Next, a second polymerizable composition is poured into the pipe () and polymerized to be a second layer (). These pouring and polymerizing processes are repeated to form an optical medium () including n-layers of polymer. Each layer is formed by polymerizing the polymerizable composition comprising same kinds of plural polymerizable contents as those in other polymerizable compositions for other layers. The layer at the inner side is formed from the polymerizable composition including larger ratio of a polymerizable content which has higher refractive index than that of at least another polymerizable content in the same polymerizable composition, compared with the polymerizable composition for forming the adjacent layer at the outer side. A difference of refractive indices between adjacent two polymer layers is at least 5×10but less than 5×10.