Pyroelectric element

Details Pyroelectric element Pyroelectric element

1989-04-10

1991-01-08

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250349, G01J 514

Patent

active

049838385

ABSTRACT:
A pyroelectric element includes a plurality of electrodes formed on one major surface of a pyroelectric film and constituting a first group and at least one electrode formed on the other major surface of the pyroelectric film and constituting a second group, wherein directions of proximal end portions of lead portions of the electrodes and widths of the proximal end portions are set to be a predetermined direction and a predetermined value such that effective light-receiving electrode areas of unit pyroelectric elements are substantially equal to each other even if electrode patterns of the first and second groups are slightly offset from each other. Provided is a pyroelectric element having excellent electrical characteristics against disturbing external light.

REFERENCES:
patent: 3839640 (1974-10-01), Rossin
patent: 4556796 (1985-12-01), Renals

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