Microscope with a condenser lens system having a tapered portion
US5699197A · kind A · utility
6Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Jul 12, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A condenser lens system collects light from a light source to illuminate a sample, which comprises in the 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 at least having a positive lens for liquid immersion located closest to the sample and having a flat surface on the sample side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.