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. 16, 2020
Filed:
Oct. 19, 2018
Everlight Electronics Co., Ltd., New Taipei, TW;
Veeramani Rajendran, Madurai, IN;
Mu-Huai Fang, Taoyuan, TW;
Ru-Shi Liu, Taipei, TW;
Ho Chang, New Taipei, TW;
Kuang-Mao Lu, New Taipei, TW;
Yan-Shen Lin, New Taipei, TW;
Chieh-Yu Kang, New Taipei, TW;
Gabriel Nicolo A. De Guzman, Laguna, PH;
Shu-Fen Hu, Taipei, TW;
Everlight Electronics Co., Ltd., New Taipei, unknown;
Abstract
The present invention relates to a phosphor, a method for preparing the phosphor, an optoelectronic component, and a method for producing the optoelectronic component. The phosphor has the following general formula: LaGaGeO: 3xA, yCr, 5zB, where x, y, and z do not equal to 0 simultaneously; A represents at least one of Gd and Yb; B represents at least one of Sn, Nb, and Ta. For the phosphor, its emission spectrum is within a red visible light region and a near-infrared region when excited by blue visible light, purple visible light or ultraviolet light; and it has a wide reflection spectrum and a high radiant flux. Therefore, it can be used in optoelectronic components such as LEDs to meet requirements of current medical testing, food composition analysis, security cameras, iris/facial recognition, virtual reality, gaming notebook and light detection and ranging applications.