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:
Dec. 25, 2018
Filed:
Aug. 04, 2017
Seiko Epson Corporation, Tokyo, JP;
Kunihiko Takagi, Okaya, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An illumination device includes a first light source section adapted to emit first colored light having a peak wavelength at a first wavelength, a second light source section adapted to emit second colored light having a peak wavelength at a second wavelength, a wavelength conversion element adapted to convert a part of the first colored light and a part of the second colored light into third colored light, and then emit another part of the first colored light, another part of the second colored light, and the third colored light, and a control section adapted to individually control an amount of light per unit time of the first colored light emitted from the first light source section, and an amount of light per unit time of the second colored light emitted from the second light source section.