Lens and lens unit
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United States of America Patent
Stats
-
May 29, 2007
Grant Date -
Dec 1, 2005
app pub date -
Oct 29, 2004
filing date -
May 25, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided are a lens and a lens unit, whereby even in the case of a small-diameter lens, manufacturing can easily be performed, and a sufficient strength of adhesion to a lens holder can be obtained. The lens includes an effective portion; a peripheral edge portion provided around a periphery of the effective portion, wherein at least one of a front and a rear faces is a planar face intersecting an axial direction; and a rib portion that is provided around a periphery of the peripheral edge portion, that has a front and a rear faces wherein one of the front and the rear faces is a planar face intersecting the axial direction, and that has a thickness reduced to be thinner toward an outer side. The lens unit of the present invention is configured such that the lens is arranged at an end of a lens system, and the lens system is together assembled into a lens holder.
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