Abstract

During the launch phase of a survey camera, its shutter will experience a harsh dynamic environment. We propose an elastic compression scheme to prevent the shutter blade from hitting the surrounding structure. The elastic member has a maximum stress at each stage of locking. In order to make this stress as small as possible, we optimize the thickness of the elastic member from 1070 to 666 MPa, which meets the safety factor requirement. We perform finite element simulations and experiments on the locking mechanism, and the results show that the motor torque curves obtained from theoretical calculations, simulation analysis, and tests coincide well. The maximum locking torque of the locking mechanism obtained by theoretical calculations, simulation analysis, and experiments also coincide well, and all three of them are within the design target of about 25 N m, which meets the requirements of shutter locking torque greater than 20 N m. Our proposed elastic compression scheme effectively solves the problem of blade fixation during the shutter launch phase.

© 2020 Optical Society of America

Camera Shutters*

Amrom H. Katz
J. Opt. Soc. Am. 39(1) 1-21 (1949)

Aircraft Camera Mounts—Their Design and Testing*

P. D. Carman and R. A. F. Carruthers
J. Opt. Soc. Am. 41(5) 311-314 (1951)

Opto-mechanisms design of extreme-ultraviolet camera onboard Chang E lunar lander

Zhaohui Li, Bo Chen, Kefei Song, Xiaodong Wang, Shijie Liu, Liang Yang, Qinglong Hu, Ke Qiao, Liping Zhang, Guodong Wu, and Ping Yu
Opt. Express 22(13) 15932-15940 (2014)

Compressive temporal imaging using a rolling shutter camera array

Felipe Guzmán, Pablo Meza, and Esteban Vera
Opt. Express 29(9) 12787-12800 (2021)

VO₂-based micro-electro-mechanical tunable optical shutter and modulator

José Figueroa, Henry Dsouza, Juan Pastrana, David Torres, Harris Hall, Kevin Leedy, and Nelson Sepúlveda
Opt. Express 29(16) 25242-25253 (2021)