INFRARED DETECTION UNIT USING A SEMICONDUCTOR OPTICAL LENS
摘要
An infrared detection unit includes a base carrying an infrared sensor element, and a cap configured to be fitted on the base to surround the infrared sensor element. The cap has a top wall with a window in which a semiconductor lens is fitted to collect an infrared radiation onto the infrared sensor element. The semiconductor optical lens is formed from a semiconductor substrate to have a convex lens and a flange which surround said convex lens. An infrared barrier is formed on the semiconductor lens to block the infrared radiation from passing through the boundary between the circumference of the convex lens and the window. Accordingly, the infrared sensor element can receive only the infrared radiation originating from a detection area intended by the convex lens.
申请公布号
WO2007061137(A1)
申请公布日期
2007.05.31
申请号
WO2006JP324044
申请日期
2006.11.24
申请人
MATSUSHITA ELECTRIC WORKS, LTD.;HONDA, YOSHIAKI;NISHIKAWA, TAKAYUKI;KAMITSU, TOMOHIRO