Patent ID: 9606323
Date: 2017-03-28
CPC Classifications: G02B

Claim:
1. A photographing lens group comprising: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive or negative refractive power; a fifth lens having a negative refractive power; and a sixth lens having a positive refractive power, wherein the sixth lens comprises at least one inflection point on at least one of an image side surface or an object side surface thereof; wherein the first, second, third, fourth, fifth, and sixth lenses are sequentially arranged from an object side to an image side of the photographing lens group; the third lens is a biconvex lens; wherein the photographing lens group satisfies an inequality of: where CT wherein the photographing lens group satisfies an inequality of: where TTL is a distance from an object side surface of the first lens to an image plane, and DI is a diagonal length of an image sensor.