Application of genetic algorithm in optimization of cam curve in zoom systems

The optimization design of the cam curve is very important in the design of a zoom system because it will eventually affect the stability of image surface and flexibility during zoom operation. Theory of using the genetic algorithm (GA) in the optimization of the cam curve of mechanically compensated zoom lens is proposed. Program is made up and the design example is given. The result of the example shows that the cam curve designed with the method of genetic algorithm is much smoother and better than those with the traditional ways.