IPC Subgroup
G02B 21/08 Condensers
Introduced: September 1968
Last revised: January 2006
Full Title
Microscopes > Means for illuminating specimen > Condensers
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
3 direct subcodes
Child Classifications
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- G02B 21/1 affording dark-field illumination
- G02B 21/12 affording bright-field illumination
- G02B 21/14 affording illumination for phase-contrast observation