摘要
介绍一种新型测径光学系统,其变焦距物镜镜头使物距可变,而成像倍率不变。这是一种中等距离测径仪器,其工作距离为400～680mm,对应的测径范围为φ90～φ150mm,测径精度可达0.2～0.02mm。
A new optical system for measuring diameter is described. The varifocal objective of this system can change object distance and keep constant magnification.The diameter finder operats at 400-680mm,the measurement range covers φ90-φ150mm and the measuring accuracy is available to 0.2-0.02mm.
出处
《应用光学》
CAS
CSCD
1993年第1期1-5,共5页
Journal of Applied Optics
关键词
测径仪
变焦距镜头
光学系统
设计
varifocal objective
optical diameter finder
optical design
