Fundus illumination apparatus formed from three, separated radiation path systems
US5506634A · kind A · utility
33Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Jul 5, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for illuminating the fundus of an eye with a scanned sample beam of radiation. An embodiment of the present invention is an optical system which includes three, separated radiation path systems--a tilted illumination path system, a decentered observation path system, and an optical path system--which are combined by a beamsplitter into an ocular lens. In accordance with the present invention, an illuminating path provided by the illumination path system and an optical beam path provided by the optical beam path system are obliquely oriented with respect to the optical axis of the ocular lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.