Scope optical system, imaging apparatus, and endoscope system
US12271005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2023 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Jul 22, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/117
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A rigid-scope optical system includes: an image-formation optical system that causes an image in each of wavelength bands to be formed in a predetermined imaging device, the wavelength bands including a fluorescence wavelength band and a visible light wavelength band; and a color-separation-prism optical system having a dichroic film that separates an optical path of light to be imaged into an optical path of the visible light wavelength band and an optical path of the fluorescence wavelength band, in which the image-formation optical system causes the respective images to be formed in a fluorescence imaging device and a visible light imaging device, the fluorescence imaging device and the visible light imaging device being disposed to cause an amount of misalignment to correspond to a difference between an optical path length of fluorescence and an optical path length of visible light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.