Method of and apparatus for double-exposure holographic interfer

Method of and apparatus for interferometric background suppressi

Method of and apparatus for measuring suspended fine particles

Method of and apparatus for measuring the volume of material in

Method of and apparatus for measuring thickness and refractive i

Method of and apparatus for the positional detection of objects

Method of and arrangement for an interferometer

Method of and arrangement for measuring vibrations

Method of and arrangement for performing optical interference me

Method of and device for determining when a liquid-renewal proce

Method of and device for measuring return losses in optical fibe

Method of and device for realtime measurement of the state of po

Method of decoding a spectrally modulated light signal

Method of detecting inclination of a specimen and a projection e

Method of evaluating optical information medium

Method of imaging a random medium

Method of inspecting particles on semiconductor devices

Method of inspecting phase shift masks employing phase-error enh

Method of measurement using scattered light

Method of measuring particles and apparatus for the same