Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1985-09-30
1987-10-20
LaRoche, Eugene R.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250231R, H01J 500
Patent
active
047016116
ABSTRACT:
A fiber optic proximity detector for use in sensing the relative position of an object or change thereof wherein the light is reflected by the target surface and returned along the transmitting fibers and utilized along with the reflected light returned along the receiving fibers so as to effect automatic surface reflectivity compensation with the detector being coupled to an optical extender to increase the working distance of the probe from the target.
REFERENCES:
patent: 4492860 (1985-01-01), Brogardh et al.
Claeys Joseph V.
LaRoche Eugene R.
Lee James C.
Mechanical Technology Incorporated
Sullivan Joseph C.
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