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:
May. 20, 2008
Filed:
Jan. 31, 2007
Applicant:
Shinichi Kohno, Saitama, JP;
Inventor:
Shinichi Kohno, Saitama, JP;
Assignee:
Fujinon Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical device comprises: a liquid container that contains water-based liquid and oil-based liquid that are different in refractive index from each other and immiscible with each other to have respective optical-transmission properties so that light can transmit in a predetermined optical-axis direction; a coat film that covers at least part of an inner surface of the liquid container and has a hydrophilic/hydrophobic property changing with temperature; and a temperature regulator that regulates temperature of the coat film.