IMAGING LENS AND IMAGING APPARATUS EQUIPPED WITH THE IMAGING LENS

摘要

An imaging lens is constituted by six lenses, including, in order from the object side to the image side: a positive first lens having a convex surface toward the object side; a negative second lens; a positive third lens, which is a meniscus lens having a convex surface toward the object side; a positive fourth lens; a negative fifth lens having a concave surface toward the object side; and a negative sixth lens, of which the image toward the image side is of an aspherical shape which is concave in the vicinity of the optical axis and convex at the peripheral portion thereof. Conditional formulae related to the focal length f of the entire lens system, the focal length f1 of the first lens, and the focal length f4 of the fourth lens is satisfied.;1.54

主权项

1. An imaging lens consisting of six lenses, including, in order from the object side to the image side:
a first lens having a positive refractive power and a convex surface toward the object side; a second lens having a negative refractive power; a third lens, which is a meniscus lens having a positive refractive power and a convex surface toward the object side; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power and a concave surface toward the object side; and a sixth lens having a negative refractive power, of which the image toward the image side is of an aspherical shape which is concave in the vicinity of the optical axis and convex at the peripheral portion thereof; the conditional formulae below being satisfied:
1.54