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:
Oct. 19, 2004
Filed:
Oct. 23, 2001
Chien-Yuan Wang, Kaohsiung Hsien, TW;
Ru-Shi Liu, Hsinchu Hsien, TW;
Yi-Shan Lin, Nan Tou Hsien, TW;
Chia-Cheng Kang, Taipei, TW;
Liang-Sheng Chi, Yun-Lin Hsien, TW;
Hung-Yuan Su, Taipei Hsien, TW;
Hsing Chen Chen-Lun, Taipei Hsien, TW;
Lite-On Technology Corporation, Taipei, TW;
Abstract
A method for manufacturing white light source includes the steps of providing an ultra-violet light as radiation source; and preparing two kinds of phosphors each receiving the ultra-violet light and emitting light of different wavelength. One phosphor is designated to emit light covering two wavelength regimes of three primitive colors, i.e., red light (585-640 nm), green light (500-570 nm) and blue light (430-490 nm), and another phosphor is designated to emit light covering remaining wavelength regime of the three primitive colors. The phosphors are mixed in predetermined ratio such that the lights of different wavelength are combined to provide a white light.