Patent ID: 8582216
Filing Date: 2013-11-12
Classification: G02B

Abstract:
1. An image lens module, in an order from an object side to an image side thereof, comprising: a first lens with positive refractive power, the first lens comprising a first object-side surface and a first image-side surface; a second lens with negative refractive power, the second lens comprising a second object-side surface and a second image-side surface; a third lens with positive refractive power, the third lens comprising a third object-side surface and a third image-side surface; and an image plane; wherein the image lens module satisfies the formulas: wherein FB is a distance between an apex of the third image-side surface and the image plane in a direction parallel to an optical axis of the image lens module, TTL is a distance between the first object-side surface and the image plane along the optical axis, G