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. 13, 2006
Filed:
Aug. 19, 2002
Chien-yuan Wang, Kaohsiung Hsien, TW;
Ru-shi Liu, Hsinchu Hsien, TW;
Liang-sheng Chi, Yun Lin Hsien, TW;
Hung-yuan Su, Taipei Hsien, TW;
Chien-Yuan Wang, Kaohsiung Hsien, TW;
Ru-Shi Liu, Hsinchu Hsien, TW;
Liang-Sheng Chi, Yun Lin Hsien, TW;
Hung-Yuan Su, Taipei Hsien, TW;
Lite On Technology Corporation, Taipei, TW;
Abstract
A method for manufacturing a white light source includes steps of providing an ultra-violet light as a radiation source, preparing three kinds of first phosphors each receiving the ultra-violet light and emitting the light of red, green and blue, respectively, and preparing at least one additional second phosphor to modify a spectral property of the light emitted by the three first phosphors in order to improve the brightness and color rendering property of the white light source. Moreover, at least one phosphor with the fluorescent property is used as the above second phosphor powder to obtain a color-changeable light source.