长焦距大变倍比变焦距物镜的小型化

The Miniaturization of Zoom Lens with Long Focal Length and Big Zooming Ratio

介绍了长焦距大变倍比变焦距物镜的小型化问题。探讨了变倍系统中变倍组和补偿的焦距缩短;调焦组与变倍组之间的距离变长的优越性,以及用最简单的结构型达到良好的像差校正状况的可能性,从而实现成像质量优良,结构简单的变焦距物镜的小型化,文章给出了两个小型化的长焦距大变倍比变焦距物镜的实例。

This paper discribes the miniaturization of zoom lens with long focal length and big zooming ratio,discusses the advantages of reducing focal length in zoom and compensation units and increasing the distance between the focus adjustment unit and zoom unit.It also discusses the possiblity of aberration correction using simple structure,for realizing the miniaturiza- tion of the zoom lens with high-quality image and simple struc- ture,followed by two examples given in the paper.