Fiber optic scanning system for laser/thermal inspection

Details Fiber optic scanning system for laser/thermal inspection Fiber optic scanning system for laser/thermal inspection

1982-09-30

1984-11-06

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250341, 250347, G01J 100

Patent

active

044814186

ABSTRACT:
An apparatus for inspecting a device made up of a plurality of different infrared radiating elements includes an optical head which is moveable along X-Y coordinates above the fixed device to sequentially scan the infrared radiating elements. A laser beam source is operatively connected to the moveable head for injecting thermal energy into the infrared radiating elements and an infrared detector is provided for sensing the infrared radiation emanating from the elements. The infrared detector may be mounted directly on the moveable head or in a remote location wherein the detector would be connected to the moveable head by a flexible optical fiber. A second moveable head may be located on the opposite side of the device so that thermal energy from the laser source may be injected into opposite sides of the infrared radiating element.

REFERENCES:
patent: 3803413 (1974-04-01), Vanzetti et al.
patent: 4127773 (1978-11-01), West
patent: 4214164 (1980-07-01), Traub et al.
patent: 4376890 (1983-03-01), Engstrom et al.

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