Camera having lens system
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United States of America Patent
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-
Feb 3, 2009
Grant Date -
Dec 9, 2004
app pub date -
May 20, 2004
filing date -
Jun 4, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A camera has a lens system that includes a lens barrel incorporating therein an image taking lens, the lens barrel being variable in a barrel length between a collapsed state in which the barrel length is relative short and a photographic state in which the barrel length is relative long. The lens barrel comprises a light quantity control member that controls quantity of photographic light passing through the image taking lens, and a light quantity control member saving and advancing mechanism that provides such a control that when the lens barrel changes over from the photographic state to the collapsed state, the light quantity control member is saved from a photographic optical axis, and when the lens barrel changes over from the collapsed state to the photographic state, the light quantity control member is advanced to the photographic optical axis.
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