Modulation contrast microscope with three regions
US4200353A · kind A · utility
21Cited by
6References
20Claims
0Family size
Inventor
Key dates
| Filing date | Apr 21, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Apr 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A modulation contrast microscope for rendering phase gradients in phase objects visible by virtue of creating light amplitude differences including a source aperture and a modulator having different density or color regions so that when a transparent object with phase gradients is examined the image exhibits viewable contrast effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.