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:
Feb. 24, 2015
Filed:
Dec. 20, 2010
Chung Hoon Lee, Ansan-si, KR;
Walter Tews, Greifswald, DE;
Gundula Roth, Levenhagen, DE;
Detlef Starick, Greifswald, DE;
Chung Hoon Lee, Ansan-si, KR;
Walter Tews, Greifswald, DE;
Gundula Roth, Levenhagen, DE;
Detlef Starick, Greifswald, DE;
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
LITEC-LP GmbH, Greifswald, DE;
Abstract
Exemplary embodiments of the present invention relate to light emitting devices including strontium oxyorthosilicate-type phosphors. The light emitting device includes a light emitting diode, which emits light in the UV or visible range, and phosphors disposed around the light emitting diode to absorb light emitted from the light emitting diode and emit light having a different wavelength from the absorbed light. The phosphors include an oxyorthosilicate phosphor having a general formula of SrCaMSiO: Euwith a calcium molar fraction in the range of 0<x≦0.05.