Laser beam scanning type ophthalmological instrument
US4968130A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1988 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00897
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laser beam scanning type ophthalmological instrument has a first laser beam light source for emitting a first laser beam; a second laser beam light source for emitting a second laser beam of a different wavelength from that of the first laser beam; and a light receiving element for receiving a laser beam reflected by an eye fundus, and in which the eye fundus is scanned by the first and second laser beams in order to observe the eye fundus or in order that a view field, etc. can be inspected. The laser beam scanning type ophthalmological instrument is characterized in that the first and second laser beams emitted by the first and second laser beam light sources can independently be adjusted in light quantity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.