Electronics Review Vol 23 No. 3 - ST Electronics

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P R O D U C T SNew frontiers inthermal imagingThe past decade has seen strongglobal demand for night visiondevices to address round-theclocksurveillance requirements forhomeland security. In response to thedemand, the performance of uncooledinfrared detectors has improvedsignificantly.In particular, uncooled infrareddetectors have progressed fromquarter TV format (160x120) to fullTV format (640x480) resolution, andthe array pitch size reduced from50-micron to 17-micron, providingcrisp image quality similar to today’sCCD camera. The performancehas also been enhanced by theimprovement in sensitivity closer tocooled infrared detectors.With enhanced performance andnotable reduction in the price ofuncooled detectors due to maturityof manufacturing processes, manynew applications such as night drivingaids and security cameras are nowpossible.STELOP Uncooled Thermal ImagingSolutionsSTELOP has accumulated more than10 years of engineering experiencein the design of uncooled thermalimaging products. STELOP’s uncooledthermal imaging products range fromweapon sights for all calibre of crewservedweapons, surveillance infraredcameras, and navigation aid infraredcameras customised to military andparamilitary requirements.Weapon Sight SolutionsBeginning with its first uncooledthermal weapon sight for mediumcalibre weapon namely GPMG and84 recoil-less rifles, STELOP nowdesigns weapon sights that fit intolarge calibre weapons such as 155mmartillery guns as well as small calibreweapons such as sniper weapons andrifles.STELOP has a complete suite ofdesign capabilities to address theunique requirements of differentweapons. For example, it can provideadequate weapon shock protectionto withstand harsh operatingenvironment, whilst maintainingexcellent bore-sight with minimumweight and compact package.The STELOP team of experiencedoptics designers can tailor infraredoptics, both telescope and eyepieces,as well as image relay opticsrequired for clip-on designs forsniper applications. With well-testedexperience, STELOP can readilyinterface or integrate the uncooledthermal sights with other sensorssuch as laser rangefinder to providecomplete fire control solutions.Infrared surveillance camera solutions28 ELECTRONICS REVIEW
Surveillance Infrared CameraSolutionsA typical infrared camera can provideup to 12-bit (4,096 levels) of dynamicrange but this is many times morethan what a human eye can process(typically less than 8-bit or 256 levels).STELOP’s electronics team has thenecessary image processing designcapability to fine-tune and calibratethe electronics that drives the infrareddetector to optimise the dynamicsrange. This ensures that customerswill be able to see the required detailsin extreme high or low contrastscenes especially in cases wherethe image quality will determine thesuccess of a mission.Uncooled infrared surveillance camera solutionsSTELOP has a patented securitycamera design, namely V360, whichprovides 360 degree undistorted viewwith the least number of infraredor CCD cameras for situationalawareness during both day andnight. It can also incorporate a fullsuite of video analytics solutions toautomatically scan, detect, analyseand track impending threats so asto minimise the workload of theoperators.Navigation AidUncooled infrared camera is wellsuitedto aid individual soldiers aswell as vehicles in navigation. Suchcameras need minimum opticaldistortion and a high degree ofcoherence in aspect ration betweenthe camera’s image, vis-à-vis imageperceived by the operators. Thisis especially critical when infraredcameras are used to aid drivers inmaneuvering vehicles in high speed.STELOP’s optics design team is ableto customise navigation aid productsto meet these two stringent operationrequirements. The products are alsoready for interface with other sensorsto reap benefits such as image fusionand wireless video transmission.Uncooled infrared detector technologywill undoubtedly continue to improvein performance and with moreattractive pricing, there will be manynew applications.With more than a decade ofengineering experience in designinguncooled infrared solutions, STELOPis well poised to offer new frontiers ofuncooled thermal imaging solutions toexisting and new customers.For more information, please contact:Tan Lay Beng at (65) 6403 2011 or email: tanlb@stelop.comTan How Meng at (65) 6403 2009 or email: tanhm@stelop.comAdrian Chan at (65) 6403 2095 or email: chanadrian@stelop.comUncooled infrared aidsMAY 2011 29
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Electronics Review Vol 23 No. 3 - ST Electronics

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