Design of Infrared Optical Zoom Lens System Based on DSP

According to the characteristics and technical demands of the dual field zoom infrared optical system,a design of zoom lens control system based on TMS320LF2407A is introduced in this paper.It mainly consists of the theory of zoom lens,the hardware circuit for the control system,and the realization of control strategy by the software.The experiments demonstrate that the system can alternate between the big-size and small size field of view once in 1 s,and accomplish the control as precisely as 5 μm.The requirement for the speediness and high precision of optical system is satisfied.