MOBILE OPTICAL SYSTEM FOR CAMERA

摘要

PURPOSE: An optical system for a mobile camera is provided to reduce manufacturing costs by minimizing the number of lenses and forming the lenses into plastic lenses. CONSTITUTION: A first lens(L1) has positive refraction power and is formed into a convex shape to the object side. A second lens(L2) has the positive refraction power and is formed into a recess shape to the object side. A third lens(L3) has the positive refraction power and has one or more inflection points on the surface of an object. An aperture stops(AS) is installed between the first lens and the second lens in order to reduce the size of the first lens. Both sides of the first lens to third lens are formed into aspherical surface.