提高变焦电视光轴稳定性的装调工艺技术研究  

Assembling and adjusting technique for improving optical axis stabilization of zoom tv

作　　者：马爱秋[1] 杨朋利[1] 白钊[1] 张明[1] 付晓庆[1] 曾波[1] 刘伟光[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《应用光学》2016年第4期602-606,共5页Journal of Applied Optics

摘　　要：针对连续变焦镜头光轴稳定性精度难以控制的问题,分析了影响光轴稳定性的主要因素,运用UG软件对连续变焦电视的曲线套筒和导杆进行了三维实体建模,应用有限元的方法对该模型进行了热力学分析;提出了有别于原有调校措施的方法和控制数据,采用胶粘与压圈相结合的双重固定方式来固定前组镜,提高了该型连续变焦镜头装调过程光轴稳定性,将产品的光轴稳定性从原来的12″以内提升到5″以内,为后续同类产品的研制奠定了装调基础和理论依据。通过试验验证了所提出方法的有效性。Aiming at the problem that the stabilization precision of the zoom optical system is difficult to control,the critical factors influencing the stabilization of optical axis were analyzed.A 3Dentity model of the curve sleeve and guide rod of the TV optical zoom system was simulated in UG,after that the thermodynamic analysis was done with the finite element method.A method of adjustment measure and the control data which were different from the original one were proposed,the fixing method combining the glue with the follower ring was utilized to fix the front group of mirror.Results show that the research can improve the stabilization precision of the zoom optical system during the assembling,it increases the stabilization of optical axis from 12″to 5″;Thereby the results establish the assembling foundation and theoretical basis for the development of following similar products.Additional,the validity of this method was verified by several experiments.

关 键 词：变倍组 补偿组 连续变焦 光轴稳定性 

分 类 号：TN206[电子电信—物理电子学]