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.

Date of Patent:
Nov. 04, 2003

Filed:

Nov. 13, 2001
Applicant:
Inventors:

Chien-Yuan Wang, Kaohsiung Hsien, TW;

Ru-Shi Liu, Hsinchu Hsien, TW;

Hung-Yuan Su, Taipei Hsien, TW;

Chen-Lun Hsing Chen, Taipei Hsien, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 9/00 ; H01J 9/24 ;
U.S. Cl.
CPC ...
H01J 9/00 ; H01J 9/24 ;
Abstract

A manufacturing method for white light source utilizes an ultraviolet light source and suitable phosphors. One of the phosphors is directly excited by the ultraviolet light source and generates a radiation with longer wavelength. Other phosphors are excited by the radiation with longer wavelength and generate radiation with much longer wavelength. The lights generated by those phosphors are mixed to form a white light.


Find Patent Forward Citations

Wang, Chien-Yuan. (2003). Manufacturing method for white light source (U.S. Patent No. 6641448). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6641448

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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