Light source apparatus and endoscope system
US8419633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2011 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Oct 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/000094
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A light source apparatus includes a first rotational filter section that can place a blue filter, a green filter and a magenta filter in a light path, a second rotational filter section that can place a yellow filter in the light path and a band selection filter section that can place an NBI filter that limits blue and green light to a narrow band, wherein the first and the second rotational filter sections are controllable so that in the case of normal light imaging, the yellow filter is placed in the light path when the magenta filter is placed in the light path and in the case of narrow band imaging, the NBI filter is placed in the light path LP and the yellow filter is placed in the light path when the green filter is placed in the light path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.