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:
Apr. 04, 2017
Filed:
Feb. 23, 2015
Seiko Epson Corporation, Tokyo, JP;
Shingo Yoshida, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Illuminance in a space where a projector projects an image is accurately detected with failure of the projector due to heat accumulation prevented. The projector includes a window that allows light to pass therethrough, a projection section that projects light through the window to project an image, an illuminance sensor that detects illuminance in a space where the image is projected, an obstacle sensor that has a light emitting section and a light receiving section, the light emitting section emitting second light, the light receiving section receiving the second light, the obstacle sensor detecting an obstacle based on an output from the light receiving section, and a control section that disables the detection of the illuminance during a period for which the light emitting section emits the light.