logo

For the Inventor, By the Inventor

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 10371937 B1

PDFFull Text
Expired
Date of Patent:
Aug. 06, 2019

Filed:

Feb. 05, 2018

Projection display apapratus

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Shinya Ohara, Utsunomiya, JP;

Tetsuya Kagawa, Sakura, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Rossi, Kimms & McDowell LLP

Primary Examiner:

Trang U Tran

Int. Cl.
CPC ...
H04N 5/63 (2006.01); G02B 26/00 (2006.01); G03B 21/20 (2006.01); H04N 9/31 (2006.01); G02B 27/10 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
G02B 26/008 (2013.01); G02B 27/1006 (2013.01); G02B 27/141 (2013.01); G03B 21/204 (2013.01); H04N 5/63 (2013.01); H04N 9/3144 (2013.01); H04N 9/3155 (2013.01); H04N 9/3158 (2013.01); H04N 9/3179 (2013.01);
Abstract

A projection display apparatus () includes a wavelength conversion element () that converts a wavelength of light from a light source, a driver () that rotates the wavelength conversion element, and an internal power supply () that stores power in advance and to be used for an operation of the projection display apparatus after a supply of power from an external power supply is cut off, and the driver rotates the wavelength conversion element at the predetermined number of rotations per unit time by using the power of the internal power supply.

Find Patent Forward Citations

Quick Actions:

Ohara, Shinya. (2019). Projection display apapratus (U.S. Patent No. 10371937). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10371937

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

Loading…