IPC Subgroup
G01J 9/02 by interferometric methods
Introduced: January 1980
Last revised: January 2006
Full Title
Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength > by interferometric methods
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
Scope Notes
Application references: Using interferometers for measuring optically the linear dimensions of objects