Manual ophthalmoscope
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 3, 1985
Grant Date -
N/A
app pub date -
Nov 29, 1982
filing date -
Dec 1, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The inventive manual ophthalmoscope is provided with a housing 1 which is closed on all sides and in which the optical components 7, 8, 9, 13, 14 are housed in an entirely dustproof manner. The necessary switching operations for interposing correction lenses 15, 16, lighting field masks, color filters etc. into the illumination and/or observation light path 2, 3 are effected by electomagnetic drives 17, 18, 19, 20 which are adapted to be operated by means of operating elements 21, 22, 23 provided on the outside of housing 1 in optimum positions from an ergonomic point of view. The display of refraction values of correction lenses 15, 16 interposed into the observation light path as well as information deducible therefrom is effected in an optoelectronic manner.
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Family
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Cited Art Landscape
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