Cell phone cameras change very fast during last few years. The resolution and pixels number of Cell phone camera are increased rapidly. As the innovation of manufacture capability of Cell phone camera, the lens system was developed from fixed focal length to changeable focal length (Zoom lens).First we found a Gaussian solution of the zoom system with so-called two-optical-component method, in which the lenses in the system are divided into two groups. Then analyzing three conditions of three-optical Gaussian solution?I also use four-optical Gaussian solution to assist this. From the procedure of analyzing these, I get the information that people who use the original and complicated Gaussian solution can quickly get the basic design of Gaussian according to different needs of ? specifications? because of the convenience what computers brought. Next the introduction of wide angle configuration of four groups zoom lens zoom lens system. By changing F/# and field of angle accompanied with moving the two groups lens of zoom lens system, we get the middle and telephoto configurations of four groups zoom lens. The image quality was evaluated by RFP, and MTF, from above, I can see the final outcomes of Optical Zoom Lenses Design.
