Laser apparatus including binocular indirect ophthalmoscope
US5252999A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Oct 22, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00863
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This application discloses a laser apparatus including a binocular indirect ophthalmoscope for irradiating a treatment laser beam on an eye to be treated comprising, an optical fiber for guiding the treatment laser beam to the binocular indirect ophthalmoscope, an optical element, which reflects the treatment laser beam while penetrates a pair of observation beams of the binocular indirect ophthalmoscope is provided in the object side of an ophthalmoscope lens, an optical system which directs the treatment laser beam to said optical element so that the axis of the treatment laser beam coincides with the substantial center of said pair of observation beam axes, whereby the power of the treatment laser beam becomes stable owing to above constitution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.