PHOTOGRAPHING LENSES AND PHOTOGRAPHING APPARATUS

摘要

A photographing lenses and a photographing apparatus including the photographing lenses. The photographing lenses include: a first lens having a positive refractive power and a convex object-side surface; a second lens having a negative refractive power and a flat surface facing an object side or an image side; a third lens having a refractive power; a fourth lens having a negative refractive power and a meniscus shape concave toward the object side; and a fifth lens which is concave toward the image side in a region around an optical axis of the photographing lenses, wherein the first to fifth lenses are sequentially arranged in a direction from the object side to the image side.

主权项

1. A plurality of photographing lenses sequentially arranged in a direction from an object side to an image side, comprising:
a first lens closest to the object side having a positive refractive power and a convex object-side surface; a second lens having a negative refractive power and a flat surface facing an object side or an image side; a third lens having a predetermined refractive power; a fourth lens having a negative refractive power and a meniscus shape concave toward the object side; and a fifth lens furthest from the object side which is concave toward the image side in a region around an optical axis of the photographing lenses, wherein the first lens through the fifth lens are sequentially arranged in a direction from the object side to the image side, and the arrangement of photographing lenses satisfies the following formulas:
V1−V2>25F4/F<−2   wherein V1 denotes an Abbe number of the first lens, V2 denotes an Abbe number of the second lens, F denotes a focal length of the photographing lenses, and F4 denotes a focal length of the fourth lens.