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:
Nov. 24, 2020
Filed:
Feb. 27, 2020
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes a light source, a light modulator configured to modulate light emitted from the light source, an optical projection device configured to project the modulated light, a light path changer between the light modulator and the optical projection device and on which the modulated light is incident, and a cooler that cools the light modulator and the light path changer. The light path changer includes an optical member to change the light path of the incident light and a first fluctuation member. The first fluctuation member includes a permanent magnet, a coil, and a coil holder holding the coil, and fluctuates the optical member by supplying power to the coil. The cooler includes a fan and a duct to deliver cooling air toward the light path changer. The duct includes a sending port that faces the coil holder and flows the cooling air toward the light path changer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile