Zoom lens having an illumination system incorporated therein
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United States of America Patent
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Feb 15, 1994
Grant Date -
N/A
app pub date -
Nov 6, 1991
filing date -
Nov 7, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A zoom lens is disclosed which makes use of a space between an inner tube and an operating ring which does not impair operability of the zoom lens. Light guides are disposed in the space and illumination systems are incorporated in the zoom lens.
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