Portable ophthalmological instrument for selective examination of anterior or posterior regions of the eye
US4461551A · kind A · utility
28Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 1982 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | May 5, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/132
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention contemplates structure for such combinable use of a portable ophthalmoscopy light and a portable stereomicroscope that components are readily convertible to selectively provide ophthalmoscope functions for examination of posterior regions of an eye, and slit-lamp functions for examination of anterior regions of the eye. Knob adjustment of the housing of the ophthalmoscopy light provides selective availability of circular and slit diaphragms, as well as filters, as appropriate to the particular kind of observation to be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.