Night Vision Facts.
Thermal Technology
All objects, such as shorelines or floating objects, have a certain temperature (heat signature) that is the result of daytime heat absorption. Other objects such as people, motors, buildings, or boats generate their own heat signature. Thermal sensors detect the difference between the heat signature of any object and those of the surrounding area or other objects. These differences are converted to video with distinct colors or shades of gray assigned to "hot" and "cool" objects, producing an image that resembles a photographic negative. Factors which equalize or mask the heat signature of different objects such as fog, rain, heavy spray, or even the length of time after sunset can reduce the effectiveness of thermal imaging. However, the ability to passively detect infrared radiation (heat) in all light situations, through smoke, haze, and a wide range of environmental conditions, makes thermal imaging the most popular type of vision system on today's market.
Low Lux Technology
Low lux tecnnology amplifies ambient light, such as running lights or street lights, to render high quality video. These systems provide detailed images in environments that are too restricted by darkness for daylight cameras or too bright for Gen III Intensifying night vision equipment.
Gen III Light Intensifying Technology
Originally developed for the military, Gen III light intensification scans a scene and intensifies the available light to produce a clear image. This technology does require a certain level light, but starlight will produce a satisfactory result, and a moonlit night produces outstanding images. Because the system requires at least a minimum level of ambient light, conditions such as heavy overcast can limit its effectiveness. Similarly, higher light levels, such as those encountered when approaching a marina or populated area, may overwhelm the system and reduce its effectiveness.
Seeing is Believing.
NVTi offers rugged and easy-to-use remotely mounted, centrally monitored night/day vision systems, as well as new hand-held models for military and law enforcement agencies. Each model is equipped with a thermal sensor as its primary vision system. Collectively, our product line delivers a vast array of options and capabilities for marine and land based applications.
Multi-sensor models, which combine thermal imaging with low lux and daylight color, as well as GEN III Image Intensification (I2) cameras, allow you to choose the best camera for the situation and ensure optimal detection and identification under the widest range of light and environmental conditions.
All models are designed for use in harsh outdoor environments and are manufactured using corrosion resistant materials and heavy duty components. Each system consists of an integrated camera head/pan & tilt unit, electronics box and controller. All NVTi models output NTSC video (PAL is an option). And all models include a one year limited warranty against manufacturers defects.
In addition, NVTi designs and manufactures custom camera systems for unique and demanding situations. Contact us to discuss your requirements and find out just how easy it is to integrate state-of-the-art vision technology in your marine or land-based operation.