Lens group and the imaging system, image capturing device

The present invention discloses a system of the imaging lens group and the image capturing device. The imaging lens system from an object side to an image side, a first lens, second lens, third lens, fourth lens, the fifth lens and the sixth lens. A first lens having a positive refractive power. A second lens having a refractive power. A third lens having a positive refractive power. The fourth lens having a refractive power. A fifth lens having a refractive power, the object-side surface and the image side are aspheric surfaces. Sixth lens having a refractive power of the image side concave surface near the optical axis, and the image-side surface having at least one off-axis convex surface, and the object-side surface and the image side are aspheric surfaces. Image lens system having a group of six non-adhesive with refractive power of the lens. When certain conditions, facilitate assembly of the imaging lens system and reduce the set tolerance sensitivity.