Condenser lens system for use in a microscope
US5657166A · kind A · utility
17Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 1994 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Jan 7, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A condenser lens system to collect light from a light source to illuminate a sample, which comprises in a named order from the light source side, a front group of positive refracting power having at least one lens and a rear group of positive refracting power having at least a positive lens for liquid immersion located closest to the sample, the positive lens for liquid immersion having a flat surface on the sample side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.