Lens shutter for aerial photography

Chun-feng YU; Hui LI; Ping JIA; Ya-lin DING

doi:10.3788/OPE.20182601.0105

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Lens shutter for aerial photography

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Lens shutter for aerial photography
- Optics and Precision Engineering Vol. 26, Issue 1, Pages: 105-113(2018)
- 作者机构：
  
  1.中国科学院航空光学成像与测量重点实验室中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2.长春设备工艺研究所, 吉林长春 130012
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20182601.0105
  CLC： TP73
- Received：18 April 2017，
  
  Accepted：22 June 2017，
  
  Published：25 January 2018
- 稿件说明：
移动端阅览
Chun-feng YU, Hui LI, Ping JIA, et al. Lens shutter for aerial photography[J]. Optics and precision engineering, 2018, 26(1): 105-113.
DOI：

Chun-feng YU, Hui LI, Ping JIA, et al. Lens shutter for aerial photography[J]. Optics and precision engineering, 2018, 26(1): 105-113. DOI： 10.3788/OPE.20182601.0105.

摘要

本文设计了一种应用于测绘型数字航空摄影相机的新型镜间快门，该快门具有结构紧凑、布局合理及可靠性高等特点，快门采用双叶片结构形式实现了五叶片快门同样高的快门效率。快门通过小型化设计，实现同轴轮系按不同传动比驱动双叶片旋转实现控制曝光的目的。控制电机转速连续调节叶片转速，可获得合适曝光量。对快门进行了模拟和实验分析，实验结果表明，快门的曝光时间范围达到1/100 s~1/1000 s，效率达到85%，快门对光学畸变影响小，具有曝光时间范围广、快门效率高和刚度较大等优点，同时刚度和强度满足相机的使用要求。

Abstract

In this study

a novel type of lens shutter with compact structure

reasonable layout and high reliability was designed for use in digital aerial photography mapping cameras. The double-blade shutter achieved the same shutter efficiency as a five-blade shutter. A coaxial gear train with different transmission ratios drives the double-blade rotation by miniaturized design

thereby controlling exposure. The speed of the blade is varied continuously by controlling motor speed

which helps attain the appropriate exposure. Simulation and experimental analysis of the shutter indicates that the range of shutter exposure time reaches 1/100 s-1/1000 s

and the shutter efficiency can increase to 85%. The shutter with wide exposure time and high shutter efficiency is found to have small effects on optical distortion

and sufficient stiffness to meet the camera requirements.

关键词

Keywords

references

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Related Institution

长春理工大学光电测控与光信息传输技术教育部重点实验室

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

Changchun University of Science and Technology,Changchun 130025, China

中国科学院长春光机所研究生院2. 中科院长春光学精密机械与物理所

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