Dual-axis, single mirror interferometer measuring system

Details Dual-axis, single mirror interferometer measuring system Dual-axis, single mirror interferometer measuring system

1982-05-07

1986-05-20

Gellner, Michael L.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356358, G03B 4100, G01B 1102

Patent

active

045897468

ABSTRACT:
A photoplotter having a photohead that moves in one coordinate direction and a film table movable in another coordinate direction employs a dual-axis, single mirror and reflector interferometer system for measuring movement of the film and photohead relative to one another. The photohead is mounted on a bridge over the movable film table and a first interferometer mounted on the head cooperates with an elongated mirror at the edge of the table for measuring the relative position of the film and head in the first coordinate direction. Another interferometer mounted on the bridge cooperates with a retroreflector on the head to measure movement of the head relative to the film in the second coordinate direction. The two measurements from the interferometers are employed as feedback signals in a closed loop positioning system for the photohead and table.

REFERENCES:
patent: 3848520 (1974-11-01), Webster et al.
patent: 3884580 (1975-05-01), Webster et al.

Affiliated with

Also associated with

Rating

Dual-axis, single mirror interferometer measuring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual-axis, single mirror interferometer measuring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-axis, single mirror interferometer measuring system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2105555