摘要
设计了一种变焦比为 4的连续变焦系统 ,用该系统构成的变焦电视摄象仪可实现对远距离空中目标的探测。其特点是变焦可以实现全自动化和数字化控制。
A system of focal length continuous change in which the ratio of Variable focal length is equal to 4, has been designed. The focus change TV camera produced by using this system may detect long distant object in the air. The distinguishing feature of the system is that focus change may be automaticly and numeraly controled.
出处
《陕西工学院学报》
2001年第4期20-22,40,共4页
Journal of Shaanxi Institute of Technology
