Microscope transmitted-illumination apparatus
US6643061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Apr 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the present invention, a transmission-illumination apparatus for use in a microscope has a transmission-illumination optical system comprising a condenser lens for radiating light emitted from a light source onto a sample, and an observation optical system including an objective lens for observing the sample. At least two shield members for controlling a shape of an aperture created in a pupil of the objective lens are disposed at or near positions conjugate with a pupil position of the objective lens. Thereby, a contrast can be successively varied without disposing a purpose-specific optical element, etc. in the observation optical system, and illumination with an optimal contrast can be provided for various samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.