Patent ID: 8018649

Claim:
An optical system for use in an infrared (IR) camera, said optical system comprising: at least one focusing optical element for focusing incoming infrared radiation onto a sensor array of the camera, said incoming infrared radiation defining a beam path; an infrared optical element arranged within the infrared camera and is substantially transparent to the incoming infrared radiation and positioned in the beam path; a first motor arranged to tilt the infrared optical element around a first axis substantially perpendicular to the beam path; a control device for controlling said first motor based at least in part on a movement of the camera, wherein the infrared optical element displaces the incoming infrared radiation beam path to a second beam path that is substantially parallel to the incoming infrared radiation beam path in response to the movement of the camera, wherein the infrared optical element comprises two substantially planar surfaces that extend substantially perpendicular to the incoming infrared radiation.