Zoom lens system for use in a compact camera
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United States of America Patent
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Dec 14, 1993
Grant Date -
N/A
app pub date -
Dec 13, 1991
filing date -
Dec 13, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A zoom lens system including a first lens unit of positive power and a second lens unit of negative power with the axial separation therebetween varies to bring about zooming. The first lens unit includes at least one positive lens element and at least one negative lens element and the second lens unit consists of a biconcave negative lens element having a strong curvature towards the front.
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