Showing results: 1 - 15 of 26 items found.
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Inframet
Passive THz imagers are capable to see thru thin obstacles and are a very interesting solutions for short distance surveillance applications like airport screening, prison screening etc. Ability to create images of targets hidden by humans under clothes is particularly interesting. This ability can be evaluated when a set of parameters of these imagers is measured and known.
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Inframet
There are many low cost artificial light sources used for illumination or for industrial applications: tungsten or halogen bulbs, fluorescent lamps, LED lamps etc. Some of these sources have regulated intensity of emitted light. However, there very few calibrated light sources of precisely known parameters. A light source can be considered as calibrated when its user can precisely regulate its photometric/radiometric parameters like luminance (or illuminance), radiance (or irradiance) at defined spectrum of interest. Such light sources are needed in many applications among them, in systems for testing night vision devices, VIS-NIR cameras and SWIR imagers. Inframet offers a series of calibrated light sources that can be divides into three groups:
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Inframet
SWIR imagers (short wavelength infrared) are an important group of surveillance electro-optical imagers due several reasons. First, advances in InGaAs technology enabled design of relatively low cost SWIR imagers. Second, InGaAs imagers are very sensitive and can generate images of observed scenery even at dark nights. Third, SWIR imagers are less vulnerable to bad atmospheric conditions than TV/LLLTV cameras working in visible/near infrared band. Fourth, SWIR imagers can generate hi-res images even if they are built using much smaller optics than used for design of thermal imagers.
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Inframet
Night vision devices are one of crucial surveillance technologies for defense/security sector. NVDs have also found mass applications outside defense sector. Testing NVDs is needed for both manufacturers, maintenance workshops and final users for a set of different and important reasons. Hi-tech test equipment can help significantly in manufacturing, maintenance, training, purchase optimization, and optimal use of night vision devices.
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Inframet
Laser systems (laser range finders, laser designators, laser receivers, laser trackers, laser pointers) are one of crucial technologies for defense/security sector. Laser systems have also found mass applications outside defense sector. Testing laser systems is needed for both manufacturers, maintenance workshops and final users for a set of different and important reasons. Hi-tech test equipment can help significantly in manufacturing, maintenance, training, purchase optimization, and optimal use of night vision devices.
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Inframet
Streak tubes are the most important modules of streak cameras used for the study of ultra fast optical phenomena. The latter cameras are tools of critical importance in many areas of science and technology like studies of plasma/electric discharge/ combustion/laser ablation/ condensed matter phenomenon, in optical communications, electron beam acceleration technology, photochemistry, medicine, biology etc. Streak cameras have made possible a series of important scientific discoveries in earlier mentioned areas of science and technology. Precision information about parameters of streak tubes is needed both by manufacturer of such tubes in improve tube design and by users of these tubes to correct data generated by the tubes and make possible more accurate interpretation of output images.
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Inframet
Image intensifier tubes (IITs) are vacuum tubes that amplify a low light-level image to observable levels. Image intensifier tubes are the most important modules of night vision devices that play crucial role in defense/security/industrial applications.Technology of manufacturing of image intensifier tubes is very difficult and performance parameters of modern IITs varies even within the same technological process. Next, test report offered by manufacturers cannot be fully trusted because there are some differences in test methods used by different manufactures. Further on, there are literature sources presenting conflicting claims of different manufacturers. It is quite common to find on the world market two night vision devices (or two image intensifier tubes) of the same data sheet parameters but of totally different image quality. Inverse situation is possible, too. Due to reasons mentioned above testing image intensifier tubes is of critical importance for both their manufacturers, manufacturers of night vision devices (NVDs) and final users of NVDs.
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Inframet
Targets from group A are developed to support mostly testing infrared imaging systems understood as thermal imagers. These targets can be used also in testing visible/near infrared cameras or SWIR cameras but such application is not optimal. IR targets are mostly used in DT systems for testing thermal imagers and in MS systems for testing multi-spectral systems.
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Inframet
Thermal imagers sensitive in MWIR and LWIR spectral bands are one of crucial surveillance technologies for defense/security sector. These imagers have also found mass applications outside defense sector. Testing thermal imagers is needed for both manufacturers, maintenance workshops and final users for a set of different and important reasons. Hi-tech test equipment can help significantly in manufacturing, maintenance, training, purchase optimization, and optimal use of these expensive imagers.
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Inframet
There are three computer simulators offered by INFRAMET:*SIMTERM - computer simulator of thermal imagers,*VIRTEST - computer simulator of test proces thermal imagers ( MRTD measurement)*NIGHTMET - computer simulator of image intensifier tubes
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Inframet
Optical systems like optical objectives or oculars are a crucial block of modern electro-optical systems. Performance of these systems is often limited by parameters of optical block. Superior optics can significantly increase surveillance ranges of electro-optical surveillance systems like thermal imagers, VIS-NIR cameras, SWIR cameras, and night vision devices. Optical systems in form of optical sights are also used as independent systems in surveillance technology.
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Inframet
Surveillance cameras based on CCD/CMOS/ ICCD/ EMCCD/EBAPS imaging sensors sensitive in visible and near infrared range are widely used in many long range surveillance applications as independent imagers or as part of a bigger multi-sensor surveillance systems. Majority of VIS-NIR cameras are used for day level applications but an increasing number of these cameras is used to enable surveillance in both night and day conditions. In both cases it is important to verify performance of these cameras under varying illumination conditions from very dark nights to ultra bright days. Important missions can fail due to too low sensitivity of VIS-NIR cameras at night conditions (dark, noisy images) or due to too low dynamic at ultra bright day conditions (saturated, blurred images). Next, it is important to use VIS-NIR cameras that generate high quality images in order to achieve maximal effective surveillance ranges.
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Inframet
IR FPA sensors are the most important modules of thermal imagers. Design of sensor electronics (camera core) is a crucial part of designing of new thermal imager. Knowledge of precise parameters of IR FPA sensor is needed by both professionals involved in both IR FPA technology/thermal imagers technology because parameters of IR FPA sensors determine performance limits of thermal imagers. Therefore test equipment that enable measurement of IR FPA sensors is a vital tool for development of both IR FPA technology/thermal imagers technology. It is commonly known that data sheets provided by manufacturers of IR FPA sensors (both cooled or non-cooled) provide too little details for electronics designers. Sometimes the provided data is not accurate enough and better sensor performance can be achieved using modified control signals. Therefore design teams loose sometimes years to develop electronic camera core optimized for a specific IR FPA sensor. When the type of the IR FPA sensor is changed the whole process is to be repeated. In this situation an universal, flexible camera core that would accept IR FPA sensors from different manufacturers and to carry out semi-automatic determination of optimal signal controls for a specific IR FPA sensor would be highly desirable.
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Inframet
The primary goal of a well designed optical table is to eliminate relative motion between components of test system located on the surface of the optical table because such motion can generate measurement errors.
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Inframet
Rotary wheels are one of basic blocks of systems for testing imaging EO systems. They are needed to enable motorized exchange of active target at collimator focal plane. There are usually 8 holes in the wheel for targets (other numbers are also possible). Wheels are covered with a black high emissivity coating (emissivity at least 0.97).
