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. 19, 2020
Filed:
Jan. 29, 2019
Seiko Epson Corporation, Tokyo, JP;
Yoshiyuki Yanagisawa, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A projector includes a light source, a light modulation device configured to modulate a light output from the light source, a projection optical device configured to project the light modulated by the light modulation device, a casing containing at least a part of the light modulation device and having an interior filled with a cooling liquid, a circulating device configured to circulate the cooling liquid at least to a light exiting side of a modulation part in the light modulation device, and a control device configured to control an operation of the circulating device. The control device changes an operation level of the circulating device.