Laser Spotting or "See-Spot" Using SWIR Cameras

On the modern battlefield many visible and invisible light sources are used, whether for marking locations, for simple range finding, LiDAR geo-mapping, or for designating targets for hostile fire, “Seeing the Spot”. Depending on the situation and mission, SWIR cameras from Princeton Infrared Technologies (PIRT) can be configured to detect light sources with wavelengths from 0.4 to 1.7 microns, such as glow sticks, LED markers, laser pointers, range finders, covert illuminators, and laser target designators. Utilizing Princeton Infrared Technologies, Inc. 12 µm 1.3 Mpixel SWIR array means more pixels on target, improving detectability and identification of the source with larger field of view (FoV) optics. PIRT’s high dynamic range (achieved with their linear 14-bit digitizers and low-noise floor) keep the light sources in the scene from obscuring dim portions of the image. The direct bandgap InGaAs SWIR detectors deliver superior sensitivity at visible through SWIR wavelengths, with low lag, high linearity and longer life compared to colloidal quantum dots imagers or compared to smaller InGaAs pixels emerging in the marketplace. Princeton Infrared Technologies, Inc. continues to lead cost reduction in hybridizing InGaAs sensors, we are developing wafer-to-wafer techniques, providing competitive sensor pricing relative to late entrants to the market.