Research/Patents/US 5056919
US 5056919

DEVICE FOR MEASURING A PHASE SHIFT WHICH IS NOT RECIPROCAL PRODUCED IN A RING INTERFEROMETER

Assignee

THOMSON-CSF

Filed

Oct 6, 1981

Granted

Oct 15, 1991

Location

PARIS FR

Abstract

A ring-shaped interferometer device containing optical means for phase shifting which act on the rays passing through the rings, these means containing an oscillator which delivers a periodic voltage of frequency 1/2τ, in which τ is the time taken by a ray to pass through the ring and a saw-tooth generator whose resonant frequency is slaved to the non reciprocal phase shift.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 8, 1982

Rescinded

Dec 31, 1990

Duration

8 years

Inventor

  • 1HERVE J. ARDITTY

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Record Details

Patent number
US 5056919
Application
06313939
Aerospace match
Yes
Dataset source
35 USC §181 SO records

Browse by Assignee

THOMSON-CSF
Back to patent indexSource: USPTO 35 USC §181 secrecy order records