Patent ID: 8830595
Filing Date: 2014-09-09
Classification: G02B,H04N

Abstract:
1. An optical imaging system for pickup, sequentially arranged from an object side to an image side with six non-cemented lens elements comprising: a first lens element with positive refractive power, having a convex object-side surface; a second lens element with negative refractive power; a third lens element with refractive power; a fourth lens element with refractive power, both object-side and image-side surfaces of the fourth lens element being aspheric; a fifth lens element with refractive power, both object-side and image-side surfaces of the fifth lens element being aspheric; and a plastic sixth lens element with refractive power having a concave image-side surface, both object-side and image-side surfaces of the sixth lens element being aspheric, and the image-side surface of the sixth lens element having at least one inflection point; wherein the optical imaging system for pickup further comprises a stop disposed between an imaged object and the third lens element, TTL is an axial distance from the object-side surface of the first lens element to an image plane, ImgH is a maximum image height of the optical imaging system, f is a focal length of the optical imaging system for pickup, f