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:
Apr. 07, 2009
Filed:
Jun. 08, 2007
Chun-yuan Lee, Hsinchu, TW;
Ming-hann Tzeng, Miaoli, TW;
Chun-Yuan Lee, Hsinchu, TW;
Ming-Hann Tzeng, Miaoli, TW;
Ghitron Technology Co., Ltd., Chutung Hsinchu, TW;
Abstract
A multidirectional ultraviolet sensor includes a substrate and a UV-sensitive layer. The UV-sensitive layer contains nano-sized or micro-sized particles of a UV-sensitive material, which is attached to a top surface of the substrate by sintering process to enable sensing of ultraviolet light incident on the ultraviolet sensor from various directions. The UV-sensitive layer is in contact with a first and a second electrode layer, which are arranged at the top surface or the bottom surface the UV-sensitive layer in the same horizontal plane, or respectively at two opposite sides of the UV-sensitive layer. Since an impedance value of the UV-sensitive layer changes in response to an intensity of incident ultraviolet light, the intensity of the incident ultraviolet light is measured by detecting the impedance of the UV-sensitive layer.