Abstract: An infrared illuminator including at least two carrier members in angularly adjustable relation with respect to one another, each carrier member having at least one infrared light source mounted thereto, for projecting infrared light in a variable illumination pattern. The illuminator may also include at least one fan for cooling the light sources, and a housing for containing the light sources. The carrier members are positionally adjustable such that the width, range, and/or intensity of the light projected by the illuminator can be varied depending on the desired application.

Abstract: A climate controlled surveillance system that includes a housing for enclosing a surveillance device. The system includes a Peltier device and a liquid coolant. The Peltier device extracts heat from the housing, which is then transferred to the liquid coolant by conduction and/or convection.

Abstract: An infrared surveillance system including a first member with a first infrared light source mounted thereto, and a second member with a second infrared light source mounted thereto. The second member is positionally adjustable relative to the first member. The surveillance system also includes an infrared camera in operative communication with at least the second member to vary an illumination field provided by the first and second light sources depending on the camera's field of view. The surveillance system also includes at least one controller for varying the output intensity of the light sources.