Fundus camera
US7431456B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fundus camera includes a first illumination optical system for illuminating the fundus of the eye with infrared light, a second illumination optical system for illuminating the fundus of the eye with visible light used for photography that shares a part of the optical path with the first illumination optical system. A target projection optical system projects a target for focusing on the fundus. An observation optical system is provided with a focusing lens and a photographic element sensitive to infrared, thereby allowing the fundus to be observed. A display mechanism is provided to display an image obtained by the observational optical system. In addition, a mechanism is provided to move the target plate on the optical axis by interlocking the movement of the focusing lens with the observational optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.