G - Physics – 01 – J
Patent
G - Physics
01
J
345/14, 340/155.
G01J 5/34 (2006.01) G08B 13/18 (2006.01) H01L 37/02 (2006.01)
Patent
CA 1225721
PHB 32,994 12 ABSTRACT: The infra-red radiation detector comprises two differentially connected pyroelectric detector elements (1,2) in parallel-opposition. The detector elements are formed in a single body 3 of pyroelectric material having two adjacent pairs of overlying electrodes (4,5 and 6,7) on opposite major surfaces of the body. The two detector elements are poled in the same direction. To meet the difficulty of electrically connecting the top electrode of each pair to the bottom electrode of the other pair each electrode (4,5,6,7) is provided with an e.g. L-shaped extension (4a,5c,6a,7a) arranged such that at an edge (3a,3c) of the body the extension of the top electrode (4,6) of one pair overlies the extension of the bottom electrode (5,7) of the other pair. The overlying exten- sions can be electrically connected together by blobs (8a,8b) of conductive epoxy or conductive clips (9a,9b) on the edge of the body.
458197
N.v.philips'gloeilampenfabrieken
Van Steinburg C.e.
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