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 7906904 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 15, 2011

Filed:

Dec. 21, 2001
Applicants:

Hiroyuki Kawae, Niiza, JP;

Takeshi Sano, Niiza, JP;

Inventors:

Hiroyuki Kawae, Niiza, JP;

Takeshi Sano, Niiza, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light permeable fluorescent coveris provided that comprises a fluorescent materialcontained in the coverattached on a light emitting diode for emitting a first light with a first peak in blue wavelength range of 420 nm to 480 nm. The fluorescent materialemits a second light with a second peak in green wavelength range of 480 nm to 580 nm separated from the first peak and a third light with a third peak in red wavelength range of 580 nm to 750 nm separated from the second peak to synthesize lights in a wide chromaticity area by mixing three primary blue, green and red lights and to irradiate them to outside of the coverin colorful expression.


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Kawae, Hiroyuki. (2011). Light permeable fluorescent cover for light emitting diode (U.S. Patent No. 7906904). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7906904

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