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. 23, 2011
Filed:
Dec. 04, 2008
Norio Tanaka, Tokyo, JP;
Shigeru Takarada, Tokyo, JP;
Takashi Hiraga, Ikeda, JP;
Ichiro Ueno, Ikeda, JP;
Nobutaka Tanigaki, Ikeda, JP;
Noritaka Yamamoto, Ikeda, JP;
Toshiko Mizokuro, Ikeda, JP;
Norio Tanaka, Tokyo, JP;
Shigeru Takarada, Tokyo, JP;
Takashi Hiraga, Ikeda, JP;
Ichiro Ueno, Ikeda, JP;
Nobutaka Tanigaki, Ikeda, JP;
Noritaka Yamamoto, Ikeda, JP;
Toshiko Mizokuro, Ikeda, JP;
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Abstract
A thermal lens forming element includes a first chamber serving as a control light absorbing region, which is configured as a columnar body or an N prismatic body (wherein N is an integer equal to or greater than 4) circumscribing the columnar body and filled with a control light absorbing dyestuff solution containing a solvent having a viscosity of 0 to 3 mPa·s at 160° C. or above and a ratio of the viscosity of the solvent at 160° C. to a viscosity of the solvent at 40° C. not less than 1 and not greater than 6, wherein the columnar body or the N prismatic body circumscribing the columnar body has a central axis coinciding with an optical axis of incident signal light. The first chamber is connected to a second chamber via a solution channel and a dam. The dyestuff solution and a bubble of an inert gas are confined in the second chamber.