Cover lens for light
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United States of America Patent
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Mar 27, 1990
Grant Date -
N/A
app pub date -
Feb 27, 1989
filing date -
Feb 27, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cover lens element for a surgical light includes a clear plastic light path region which may be smooth and flat on one surface but which is dimpled on its other surface with numerous overlapping spherical depressions which in combination present an array of plano-concave negative lenses.
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Cited Art Landscape
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