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:
Mar. 30, 2004
Filed:
Jan. 30, 2002
Applicant:
Inventor:
Werner Kuhlmann, München, DE;
Assignee:
Osram Opto Semiconductor GmbH & Co. OHG, Regensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01L 3/1062 ;
U.S. Cl.
CPC ...
A01L 3/1062 ;
Abstract
An ultraviolet light radiation photodetector includes a quartz lens, a UV transmission filter, a silicon photodiode, and a scintillator layer. After passing through the quartz lens and the UV transmission filter, the UV light to be detected is converted in the scintillator layer, preferably applied to the surface on a light-exiting side of the UV transmission filter, into light radiation of a greater wavelength, for which the silicon photodiode exhibits a greater sensitivity. If desired, an additional edge filter can be used to improve the configuration's drop in sensitivity between 350 and 400 nm.