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. 05, 2001
Filed:
Jul. 05, 1994
Nancy L. S. Yamasaki, Santa Rosa, CA (US);
Glenn K. Yamamoto, Santa Rosa, CA (US);
Lindsey Brown, Healdsburg, CA (US);
Michael W. Shinkle, Santa Rosa, CA (US);
Blain J. Hendrix, Santa Rosa, CA (US);
Optical Coating Laboratory, Santa Rosa, CA (US);
Abstract
An optical fluorescent composite which controls fluorescence intensity comprises a solid layer containing fluorescent material (such as a phosphor) formed on an optically transparent base or substrate and optically coupled to a spectrally selective filter, also formed on the base or substrate, that modifies the intensity of either or both the excitation or emission spectra of the phosphor. Devices constructed in this manner serve as stable references for fluorescent measurements. Sets of such device is made with filters having different transmittance amplitudes, can characterize fluorescent measurement response over several orders of magnitude. In one of numerous alternative structure, the fluorescent layer can be formed on one substrate, the filter formed on a second substrate and the two substrates joined together.