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.:

US 7492409 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 17, 2009

Filed:

May. 08, 2003
Applicant:

Toshiharu Yanagida, Tokyo, JP;

Inventor:

Toshiharu Yanagida, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
Abstract

An imaging apparatus is comprised of a light controller including a liquid crystal element and a polarizing plate located in front of an optical low-pass filter in the optical path of the imaging apparatus. The polarization direction of the polarizing plate and the orientation for the liquid crystal element are selectively chosen with respect to the rotation of the optical low pass filter elements in order to achieve a desired improvement in the device performance.


Find Patent Forward Citations

Yanagida, Toshiharu. (2009). Light controller and imaging apparatus (U.S. Patent No. 7492409). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7492409

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…