Light source device, imaging apparatus and endoscope apparatus
US8790253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2009 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Feb 8, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A light source device includes a first light source, a second light source having an emission wavelength that is different from the first light source, and a phosphor that is disposed to be distant from the first light source and the second light source and absorbs light in a predetermined excitation wavelength band to emit fluorescence. The phosphor is disposed on an emission light optical path that is shared by the first light source and the second light source. The emission wavelength of the first light source is in the predetermined excitation wavelength band. The emission wavelength of the second light source is outside of the predetermined excitation wavelength band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.