Design of Eye Closure System for the Stealth
of Photo-Electric Equipments¹

Y. Zhang*, W. S. Hua, and G. Li

Department of Optics and Electronic Engineering, Mechanical Engineering College, Shijiazhuang, 050003 China

*e-mail: yueyue3006@gmail.com

Received January 13, 2012; in final form, May 28, 2012; published online September 3, 2012

Abstract—Based on the optical activity of liquid crystal, a new approach for the stealth of “cat’s eye” targets
is proposed in this paper. It imitates the physiological close reaction of human eyes when strong light irradiates
eyes. With this approach, the “cat’s eye” effect will vanish, which is applied in restricting photo-electric equip-
ments being detected and located by active laser detection system. The structure and working principle of the
design are presented. The drive circuit is given to control the optical switch automatically. Feasibility of this
design is demonstrated by experimental method. The measured data illustrate that the proposed approach is
effective to eliminate the “cat’s eye” effect, so as to enhancing the viability of photo-electric equipments on the
battlefield.

DOI: 10.1134/S1054660X12100283

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