所谓杂光,即是用电影、电视、照相等摄影镜头形成物体的实象时,除了成象光线,还有其它非成象光线在象面上扩散,这些非成象光线就叫做杂光。杂光是很有害的。人们早就注意到它的影响,并从理论上和实验上进行过一些探讨。(参看[1])五十年代以来,人们主要致力于杂光系数的精确测量,并进一步从理论上实验上分 The so-called stray light, that is, the use of film, television, photography and other photographic lens to form the real image, in addition to imaging light, there are other non-imaging light spread in the image plane, these non-imaging light is called stray light. Stray light is very harmful. People have long noticed its influence, and made some discussions both theoretically and experimentally. (Ref. [1]) Since the 1950s, people mainly focused on the accurate measurement of the stray light coefficient, and further from the theoretical experiment