Fluorescence observation unit and fluorescence observation apparatus
US9915814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Aug 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/141
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluorescence observation unit includes a scanner that scans ultrashort pulsed laser light, a pupil projection lens that focuses the scanned ultrashort pulsed laser light, an image-forming lens that converts the focused ultrashort pulsed laser light to substantially collimated light and causes the ultrashort pulsed laser light to be incident on the objective lens, and a dichroic mirror that splits off, from the optic path of the ultrashort pulsed laser light, fluorescence generated in a sample due to irradiation with the ultrashort pulsed laser light and collected by the objective lens. The image-forming lens includes a first optical system having positive refractive power, and a second optical system having negative refractive power and disposed at a position closer to the scanner than the first optical system is. The dichroic mirror is disposed between the first optical system and the second optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.