INFRARED IMAGER

摘要

An infrared imager for detecting infrared (IR) radiation of a scene in a fie ld of view (FOV) of an optical system and converting the IR into a visible image wherei n the imager consists of an array of uncooled microbolometers in a focal plane of the optical system and a array of light emitting diode (LED) or liquid crystal display (LCD) elements. The IR radiation collected by the microbolometer produces a change in an electrical output applied to electronic circuitry connected to the array of LED s or LCDs. The electronic circuitry controls the intensity of a LED element or the reflectance of an LCD element. As a result, the imager converts the infrared radiation from the scene into visible light. The light reflected from the LC D or produced by LEDs in an array constitutes the scene image