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Sensor protection against laser dazzling

: Ritt, G.; Eberle, B.


Huchridge, D.A. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.; Société Française d'Optique:
Electro-optical and infrared systems: Technology and applications VII : 21 - 23 September 2010, Toulouse, France; as part of SPIE Security + Defence
Bellingham, WA: SPIE, 2010 (Proceedings of SPIE 7834)
ISBN: 978-0-8194-8352-2
Paper 783404
Electro-Optical and Infrared Systems - Technology and Applications Conference <7, 2010, Toulouse>
Fraunhofer IOSB ()
sensor protection; laser dazzling; spatial light modulator; wavelength multiplexing

Laser dazzling of electro-optical sensors states a serious problem. Especially when navigational tasks shall be fulfilled a disturbance of the sight is inacceptable. Classical protection measures like e.g. laser safety filters usually lack of the drawback of color distortion and a considerable loss in transmission. Therefore, new protection concepts should be aspired which are independent of the laser wavelength and do not affect the vision. In this paper we discuss a novel concept to protect electro-optical sensors against laser dazzling based on spatial light modulator technology and wavelength multiplexing. In particular, the method is suited as a protection measure against continuous wave laser sources.