IMAGING LENS AND IMAGING APPARATUS

摘要

An imaging lens consists of a negative first lens, a positive second lens, a negative third lens, a positive fourth lens, a positive fifth lens, and a negative sixth lens in order from the object side. The Abbe number of the material of the sixth lens with respect to the d-line is less than or equal to 30. When the radius of curvature of the object side surface of the third lens is taken as R3F, the radius of curvature of the image side surface of the third lens is taken as R3R, and the Abbe number of the material of the third lens with respect to the d-line is taken as νd3, the following conditional expressions are satisfied:;1.35<(R3F+R3R)/(R3F−R3R)<6.0  (1);νd3<30.0  (2).

主权项

1. An imaging lens, consisting of a first lens having a negative power, a second lens having a positive power, a third lens having a negative power, a fourth lens having a positive power, a fifth lens having a positive power, and a sixth lens having a negative power, in order from the object side, wherein:
the Abbe number of the material of the sixth lens with respect to the d-line is less than or equal to 30; and the following conditional expressions are satisfied:
1.35<(R3F+R3R)/(R3F−R3R)<6.0  (1)νd3<30.0  (2)where:R3F is the radius of curvature of the object side surface of the third lens;R3R is the radius of curvature of the image side surface of the third lens; andνd3 is the Abbe number of the material of the third lens with respect to the d-line.