IPC Subgroup
G01B 9/02018 Multipass interferometers, e.g. double-pass
Introduced: January 2022
Full Title
Measuring instruments characterised by the use of optical techniques > Interferometers > characterised by the beam path configuration > with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations > Multipass interferometers, e.g. double-pass
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