Apparatus and method for determining position with light

Details Apparatus and method for determining position with light Apparatus and method for determining position with light

1986-06-19

1988-04-19

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 45, 356352, 356357, G01C 308, G01B 902, G01B 1102

Patent

active

047385278

ABSTRACT:
Apparatus and method is disclosed for determining position with light by providing input light at an input light port of an optical cavity having a variable length dimension and detecting light which has traversed the variable length dimension at an output light port of the optical cavity and determining the present length of the variable length dimension using the detected light as a measure.

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