3 frequency heterodyne laser interferometer that doubles the res
Absolute distance sensor
Absolute gravity inline measuring apparatus incorporating improv
Absolute intensity measurements in laser induced incandescence
Absolute interferometer measuring process and apparatus having a
Accumulative absorption-dispersion spectrophotometer
Accurate correlator of rotational and translational motions and
Achromatic self-referencing interferometer
Adjustable optical test apparatus including interferometer with
Adjustment for reflective surfaces in interferometers
Aerosol particle sensor with axial fan
Air-in-water indicator
Alignment apparatus and method for interferometer spectrometers
Alignment apparatus for use in exposure system for optically tra
All optical phase sensitive detector and image demultiplexer
An interferometric measuring system having temperature compensat
Analytical depth monitor utilizing differential interferometric
Analytical instrument optical element support system
Angle detecting apparatus for detecting angle of inclination of
Angle measuring interferometer