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:
Mar. 20, 2018
Filed:
Apr. 10, 2015
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
The light emitting device includes at least one light emitting element that emits light having a peak emission wavelength in a wavelength range from 380 nm to 480 nm inclusive; a first green phosphor that is excited by the primary light emitted by the light emitting element and emits light having the peak emission wavelength in the green region; a second green phosphor that is excited by the primary light and emits light having the peak emission wavelength in the green region; and a red phosphor that is excited by the primary light and emits light having the peak emission wavelength in the red region. The peak emission wavelength of the light emitted by the second green phosphor is shorter than the peak emission wavelength of the light emitted by the first green phosphor.