Interferometers

Full Title

Measuring instruments characterised by the use of optical techniques > Interferometers

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS

Scope Notes

Application references: Apparatus for testing the eyes; Instruments for examining the eyes Fabry-Perot interferometers Interferometric spectrometry Using interferometric methods to measure optical phase difference, determine degree of coherence or measure optical wavelength Investigating or analysing materials using interferometric methods involving refractivity or phase-affecting properties Interference filters Devices for the control of the intensity, phase, polarisation or colour, by interference Depth or shape recovery in image analysis from laser ranging, e.g. using interferometry

Related Keywords

Child Classifications

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• G01B 9/02001 characterised by controlling or generating intrinsic radiation properties
• G01B 9/02015 characterised by the beam path configuration
• G01B 9/02055 Reduction or prevention of errors; Testing; Calibration
• G01B 9/0209 Low-coherence interferometers
• G01B 9/02097 Self-interferometers
• G01B 9/021 using holographic techniques