Birch, Stewart, Kolasch & Birch, LLP
Imaging lens and imaging apparatus
An imaging lens is provided and includes: in order from the object side, a first lens having a concave surface on an image side thereof; a second lens of a negative lens having a concave surface on the image side and having at least one aspheric surface; a third lens having at least one aspheric surface; and a fourth lens of a positive lens having a convex surface on the image side and having at least one aspheric surface. A stop is disposed between the third lens and the fourth lens. In addition, assuming that a focal length of the whole system is f and a focal length of the first lens L1 is f1, the following Conditional Expression (1) is satisfied.15.0<|f1/f|  (1)
Fujifilm Corporation
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G02B G02B G02B
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Taro
Asami