Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1987-06-22
1990-10-16
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
2503381, 250340, G01J 100
Patent
active
049637410
ABSTRACT:
A large area pyroelectric joulemeter for measuring the pulsed beam output of a laser. The joulemeter employs a pyroelectric detector element with front and rear conductive surfaces forming electrodes, a relatively massive mounting block with relatively high thermal conductivity and an epoxy adhesive for securing the detector element to the mounting block, the epoxy having relatively high thermal conductivity so that heat can be quickly dissipated out of the detector element. An internal recess in the mounting block accommodates a trimming capacitor and resistor for adjusting the voltage sensitivity of the detector assembly to a constant value. The detector assembly is removably installed within an outer housing having a main base portion and a removable bezel.
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"Molectron J3 Pyroelectric Joulemeter" brochure by Cooper LaserSonics, Inc., Santa Clara, Calif.
Eisenberg J.
Hannaher Constantine
Molectron Detector, Inc.
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