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. 04, 2019
Filed:
Dec. 12, 2017
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Jeong Rok Oh, Suwon-si, KR;
Jeong Eun Yun, Hwaseong-si, KR;
Sung Woo Choi, Suwon-si, KR;
Cho Hui Kim, Hwaseong-si, KR;
Chul Soo Yoon, Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A white light emitting device may include a blue light emitting diode configured to emit blue light and a plurality of wavelength conversion materials configured to convert the blue light into light having different wavelengths based on being excited by the blue light, and emit white light based on the converting, wherein the emitted white light is associated with an Illuminating Engineering Society (IES) TM-30-15 Fidelity Index (R) in a range of 78 to 89, an IES TM-30-15 Chroma Change by Hue Index Rin a range of 7% to 16%, and an IES TM-30-15 Chroma Change by Hue Index Rin a range of 7% to 16%, and a color difference between a reflection spectrum of a white specimen of the emitted white light, and International Commission on Illumination (CIE) Standard illuminant D65, that is equal to or less than 106.