| In recent years, with the development of the theory and technology of zoom lens, the quality of it become better and the category of it become more. It is popular in many areas. Under this situation, the research of zoom lens design is significant.At the beginning of the dissertation, the history of zoom lens has been reviewed. Readers can learn of the development of system's structure and the zoom method, and also know the changing trend of them. The next chapter talks about the theory of zoom lens design. Based on it, the chapter 3 introduces the PW method of calculating the original structure of zoom system, and present an example of mechanically compensate zoom lens. On the other hand, relying on the powerful function of computer-aimed optical design software, another way of designing zoom lens has been studied. It can avoid the calculation the original structure. Also, it shows the detailed example of telecentric zoom lens. The last chapter discusses the method of fitting the design cam's curve.In one word, the dissertation talks about the process from calculation of the original structure to the creation of cam's curve. |
