Microscope illumination device and microscope
US10788657B2 · kind B2 · utility
0Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microscope illumination device includes a white LED light source and an illumination optical system. The white LED light source includes a substrate, a plurality of LED chips, and a fluorescent substance layer provided to cover the plurality of LED chips, the plurality of LED chips being arrayed on the substrate and being configured to emit excitation light. The illumination optical system includes a field stop and a light diffusion element that is arranged between the white LED light source and the field stop. The microscope illumination device satisfies 0.2<d/p<1 (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.