Image pickup lens, image pickup apparatus, and mobile terminal

摘要

An image pickup lens LN includes four blocks of lens blocks Ci (i=0 to 4). Lens substrate Li2 is different in material from lens portions Li1 and Li3. First lens block C1 has positive power, second lens block C2 has negative power, and fourth lens block C4 has a concave shape facing an image side in a paraxial region. At least one of lens portions with a concave shape in the paraxial region satisfies the conditional expression &ngr;n<40 (where &ngr;n is an Abbe number of a lens portion having a concave shape in the paraxial region), and first lens block C1 satisfies the conditional expression 0.5