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. 27, 2016
Filed:
Sep. 04, 2015
Citizen Electronics Co., Ltd., Fujiyoshida-shi, JP;
Hideyoshi Horie, Odawara, JP;
CITIZEN ELECTRONICS CO., LTD., Fujiyoshida-shi, JP;
Abstract
A light-emitting device that can implement a natural, vivid, highly visible and comfortable appearance of colors and appearance of objects as if the objects are seen outdoors is provided. The light-emitting device can change the appearance of colors of the illuminated objects so as to satisfy the requirements for various illuminations. Furthermore, the appearance of colors of the light-emitting device which currently exists or is in use, and which includes a semiconductor light-emitting device of which appearance of colors is not very good, is improved. A method for driving the light-emitting device, an illumination method by the device, and a method for manufacturing the light-emitting device are also provided. These features are achieved by the light-emitting device that incorporates light-emitting elements and satisfies predetermined requirements, in which φ(λ) emitted from the light-emitting device satisfies a predetermined condition.