Fundus camera with partially common coaxial observation and photographing optical systems
US5543865A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Jan 17, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/145
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fundus camera, which has an illumination optical system for illuminating a fundus of an examinee's eye, an observation optical system for observing the fundus and a photographing optical system for photographing an image of the fundus, the photographing system sharing partially a common optical path with the observation optical system, comprises a beam splitter disposed in the optical path of the photographing optical system, the optical path being used in common with the observation optical system, to dispose coaxially an optical path of the illumination optical system and same of the observation optical system and the photographing optical system, and photoelectric imaging elements disposed respectively in the observation optical system and the photographing optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.