Car window antitrapping optical fiber system based on a fiber speckle pattern

Jong-Honn Lim; Gil Hwan Kim; Gun Lim; Joon-Yong Cho; Kyung-Shik Lee

doi:10.1117/1.1690279

1 May 2004 Car window antitrapping optical fiber system based on a fiber speckle pattern

Jong-Honn Lim, Gil Hwan Kim, Gun Lim, Joon-Yong Cho, Kyung-Shik Lee

Author Affiliations +

Optical Engineering, Vol. 43, Issue 5, (May 2004). https://doi.org/10.1117/1.1690279

Abstract

A car window antitrapping optical fiber system based on a speckle pattern from a multimode fiber installed in the window frame is proposed and demonstrated. The speckle pattern change is measured by an array of photodiodes whose output signal data are processed by computer through an analog-to-digital (A/D) converter to control the window motor. Experimental results show that the proposed system with multiple photodiodes, along with an appropriate processing algorithm, runs well. The processing algorithm is also presented.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Jong-Honn Lim, Gil Hwan Kim, Gun Lim, Joon-Yong Cho, and Kyung-Shik Lee "Car window antitrapping optical fiber system based on a fiber speckle pattern," Optical Engineering 43(5), (1 May 2004). https://doi.org/10.1117/1.1690279

Published: 1 May 2004

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