小型变焦相机的结构实现

苗健宇 Miao Jian-yu, 张立平 Zhang Li-ping, 翟岩 Zhai Yan, 梅. M. Gui
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引用次数: 2

摘要

介绍了小尺寸大变焦比摄像机的主要技术参数和变焦方法。对摄像机的各个结构部分进行了详细的描述。变焦和补偿透镜组通过滑动架在主体内滑动,其运动由凸轮曲线槽内导销的运动保证。阐述了摄像机在加工和装配过程中为保证质量和精度所采取的措施。凸轮曲线槽与滚子的间隙控制在6 ~ 9 μm左右,保证了主体的刚度和柱性。当变焦和补偿滑动框在主体内滑动时,返回误差小于2″。滑架直径与长度之比应不小于1。结果表明,该摄像机的光学传递函数大于0。2 .在空间频率为50 lp / mm的高低温振动试验后,摄像机的位置图像清晰。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structural realization of small zoom camera
The main technical parameters and the zoom method for the camera with small size and large zoom ratio are introduced. Each structural part of the camera is described in detail. The zoom and compensating lens group slide in the main body through the slide frame,whose movements are assured by the movement of the guide pin in the cam curve groove. The measures to ensure the quality and the precision taken in the process and assembling of the camera are expatiated. The clearance between cam curve groove and roller is controlled about 6 ~ 9 μm,and the stiffness and column of the main body are insured. The return errors are less than 2″ when the zoom and compensation slide frame slide in the main body. The ratio between diameter and length of the slide frame should be no less than 1. The results show that optical transfer function of the camera is more than 0. 2 in the space frequency of 50 lp / mm after high-and-low temperature vibration tests, and the location images of camera are clear.
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