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. 12, 2014
Filed:
Dec. 05, 2012
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Shunsuke Yasugi, Osaka, JP;
Kozo Ezawa, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An exposure controller according to the present disclosure is to be arranged on an optical path, and includes first and second light quantity regulators, each of which has a first region that has a property of transmitting a light beam polarized in a particular direction and a second region that does not have the property of transmitting a light beam polarized in the particular direction. The exposure controller regulates the quantity of light by rotating the first and second light quantity regulators.