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:
Jun. 17, 2014
Filed:
Feb. 08, 2011
Hisayoshi Daicho, Shizuoka, JP;
Tatsuya Matsuura, Shizuoka, JP;
Ken Kato, Shizuoka, JP;
Kiminori Enomoto, Shizuoka, JP;
Hisayoshi Daicho, Shizuoka, JP;
Tatsuya Matsuura, Shizuoka, JP;
Ken Kato, Shizuoka, JP;
Kiminori Enomoto, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A light emitting device is configured to achieve a white color by mixing light from respective phosphors. The light emitting device includes: a light emitting element for emitting ultraviolet or short-wavelength visible light having a peak wavelength in a wavelength range of 380 to 420 nm; a first phosphor excited by the ultraviolet or short-wavelength visible light to emit visible light having a peak wavelength in a wavelength range of 560 nm to 600 nm; a second phosphor excited by the ultraviolet or short-wavelength visible light to emit visible light having a complementary relationship with visible light emitted by the first phosphor; and a light transmitting member which is a light transmitting layer for covering the light emitting element, and has the first phosphor and the second phosphor dispersed therein.