| 摘要 |
<P>PROBLEM TO BE SOLVED: To satisfactorily correct various aberrations while achieving an entire length reduction and realize a high imaging performance in the range from the central angle of view to the peripheral angle of view. <P>SOLUTION: The imaging lens comprises in order from an object side: a first lens of positive power whose object side face is convex; a second lens whose shape near an optical axis is a positive meniscus lens whose concave face is oriented toward the object side; a third lens whose shape near the optical axis is a negative meniscus lens whose concave face is oriented toward the object side; and a fourth lens whose image side face is concave near the optical axis and convex on its periphery, and which has positive power near the optical axis; and a fifth lens whose image side face is concave near the optical axis. <P>COPYRIGHT: (C)2013,JPO&INPIT |
