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.:

US 7473935 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 06, 2009

Filed:

Aug. 30, 2005
Applicant:

Cheng-chuan Chen, Tainan Hsien, TW;

Inventor:

Cheng-Chuan Chen, Tainan Hsien, TW;

Assignee:

Genesis Photonics Inc., Tainan Hsien, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/201 (2006.01); H01L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A white-light emitting semiconductor device includes a first light-emitting die, a second light-emitting die, a photostimulable luminescent substance, and a holding assembly. The first light-emitting die emits a first radiation having a first wavelength range. The second light-emitting die emits a second radiation having a second wavelength range, and a third radiation having a third wavelength range different from the second wavelength range. The photostimulable luminescent substance is excitable to emit a fourth radiation having a fourth wavelength range. The fourth radiation is mixed with the first, second, and third radiations to result in white light. The holding assembly holds the first and second light-emitting dies, and the photostimulable luminescent substance.


Find Patent Forward Citations

Chen, Cheng-Chuan. (2009). White-light emitting semiconductor device (U.S. Patent No. 7473935). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7473935

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