Optical scanner

Details Optical scanner Optical scanner

1976-03-17

1977-08-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 96B, G02B 514

Patent

active

040428230

ABSTRACT:
An optical scanner to inspect the surface of an object. A laser beam source mits a beam which is reduced in cross section, for mode matching, and caused to rotate by a series of lenses. A collimating lens focuses the rotating beam into a fiber optic cable. The beam, upon emergence from the cable, is reflected to the surface to be scanned by a reflecting cone. A detector, coupled to sensing devices, receives and interprets the surface reflections. The head portion of the cable is mounted in a crawler having a bellows at its mid-portion which enables the device to travel in a curved path, if necessary.

REFERENCES:
patent: 3739184 (1973-06-01), Katsumata et al.
patent: 3807390 (1974-04-01), Ostrowski et al.
patent: 3827787 (1974-08-01), Ripart
patent: 3973836 (1976-08-01), Govignon

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