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. 02, 2019
Filed:
Aug. 06, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Kensuke Inagaki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A projection apparatus includes a light source that emits light, a projection unit that projects an image on a projection surface based on the light emitted by the light source, a projection control unit that controls the light source and the projection unit, a control unit that controls the projection control unit based on schedule information where an operation of the projection apparatus and a time of performing the operation are associated in advance, and a storage unit that stores a number of operations of turning on/off the light source and a total lighting time of the light source. If the control unit performs a power-off operation of the projection apparatus based on the schedule information, the control unit controls whether to turn off the light source based on the power-off operation based on the number of the operations and the total lighting time.