Oblique illumination device for use with an ophthalmic microscope
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 13, 1992
Grant Date -
N/A
app pub date -
Oct 25, 1990
filing date -
Oct 25, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Oblique illumination system is provided for use with an ophthalmic microscope having a direct illumination system. The apparatus includes a first light deflector for deflecting light in the direct illumination axis transversely along a transverse axis. A first support movably connects the first light deflector to enable it to be shifted into and out of the direct illumination axis; a second light deflector redirects the light in the transverse axis along an oblique axis which intersects the microscope axis at the focal plane. The first light deflector can be alternatively shifted to vary the microscope between the direct and indirect illumination modes to minimize the duration of the exposure of the eye macula to the illumination system during a surgical procedure. A method for converting a conventional direct illumination operating microscope for use as an indirect illumination microscope is also provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully