Image readout lens and image readout apparatus using the same
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United States of America Patent
Stats
-
Nov 20, 2001
Grant Date -
N/A
app pub date -
Feb 22, 2000
filing date -
Mar 4, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An imaging lens comprises, successively from an object side, a positive first lens L.sub.1 having a convex surface directed onto the object side, a negative second lens L.sub.2 having a concave surface directed onto an image side, a third lens L.sub.3 of a positive meniscus form having a convex surface directed onto the object side, a fourth lens L.sub.4 of a positive meniscus form having a convex surface directed onto the image side, a negative fifth lens L.sub.5 having a concave surface directed onto the object side, and a positive sixth lens L.sub.6 having a convex surface directed onto the image side, the first lens L.sub.1 and the second lens L.sub.2 being cemented to each other, the imaging lens satisfying the following conditional expressions: 0.51
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