Birch, Stewart, Kolasch & Birch, LLP
Imaging lens and imaging apparatus
An imaging lens is provided and includes: in order from the object side, a negative first lens, a negative second lens, a positive third lens, a stop, and a positive fourth lens. In the lens, each of the second lens, the third lens, and the fourth lens has at least one aspheric surface, and an Abbe number of a material of the third lens at the d-line is 35 or less. In addition, the imaging lens satisfies the following Conditional Expression (1):−0.2<(R3+R4)/(R3−R4)<0.2  (1)where R3 is a paraxial radius of curvature of the object side surface of the second lens, and R4 is a paraxial radius of curvature of the image side surface of the second lens.
FUJIFILM Corporation
G G
G02B G02B
inventional inventional
Taro
Asami