US Patent 10310239 Imaging lens and optical apparatus

The imaging lens consists of, in order from a magnified side, a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, a sixth lens having a positive refractive power, and a seventh lens having a positive refractive power, and satisfies predetermined Conditional Expressions (1) and (2) relating to Abbe numbers of the second lens to the fifth lens.