Coaxial opthalmoscope arrangement
US3984157A · kind A · utility
23Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1974 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Feb 13, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/158
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved coaxial ophthalmoscope incorporating a light trap for absorbing substantially all of the light not utilized for illuminating the retina of the eye under examination and thereby preventing the unused light from reflecting back into the eye of the viewer thus obscuring the vision thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.