Dimensional measurement of remote objects using projected light

Details Dimensional measurement of remote objects using projected light Dimensional measurement of remote objects using projected light

1974-08-07

1976-03-09

Lieberman, Eli

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250560, 350 7, H01J 314

Patent

active

039433617

ABSTRACT:
A system for measuring a lineal dimension of a light reflective object. Sequentially generated light markers forming a raster are projected toward the object to be measured, with the markers traveling along individual, parallel paths which are uniformly spaced-apart along the dimension being measured. Markers intercepted and reflected back by the object are photoelectrically detected and counted to determine the size of the object along the measured dimension.

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patent: 3523160 (1970-08-01), Willey
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patent: 3658428 (1972-04-01), Voigtlaender-Tetzner
patent: 3749500 (1973-07-01), Carlson et al.
patent: 3791607 (1974-02-01), Klang et al.
patent: 3802774 (1974-04-01), Eschler et al.
patent: 3853406 (1974-12-01), Zanoni

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