{"product_id":"harder-digital-2600-fom","title":"Harder Digital Gen3  2600 FOM","description":"\u003c!-- PRODUCT DESCRIPTION --\u003e\n\n\u003ch3\u003eHarder Digital HD-1520U-AUG-EGC-BW Gen III Image Intensifier Tube – FOM 2600\u003c\/h3\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe \u003cstrong\u003eHarder Digital HD-1520U-AUG-EGC-BW\u003c\/strong\u003e is a high-performance \u003cstrong\u003eGeneration III 18mm image intensifier tube\u003c\/strong\u003e built around a GaAs photocathode and microchannel wafer architecture. This specification features a minimum \u003cstrong\u003eFOM of 2600\u003c\/strong\u003e, 72 lp\/mm centre resolution and a minimum signal-to-noise ratio of 34 for demanding night vision applications.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe tube uses a \u003cstrong\u003eP45 black-and-white phosphor screen\u003c\/strong\u003e to produce a monochrome night vision image and incorporates \u003cstrong\u003eAUTOGATED\u003c\/strong\u003e operation together with external gain control through a third contact. Its fiber optic inverter output and ANVIS-type inverting image intensifier architecture make it suitable for compatible night vision systems designed around this interface.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eWith a maximum mass of only \u003cstrong\u003e78g\u003c\/strong\u003e, a useful photocathode diameter of 17.5mm and operation across a specified temperature range of -55°C to +55°C, the HD-1520U combines high optical performance with environmental durability.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGeneration III 18mm image intensifier assembly\u003c\/li\u003e\n  \u003cli\u003eMinimum FOM: 2600\u003c\/li\u003e\n  \u003cli\u003eMinimum centre resolution: 72 lp\/mm\u003c\/li\u003e\n  \u003cli\u003eMinimum signal-to-noise ratio: 34\u003c\/li\u003e\n  \u003cli\u003eGaAs photocathode\u003c\/li\u003e\n  \u003cli\u003eP45 black-and-white phosphor screen\u003c\/li\u003e\n  \u003cli\u003eAUTOGATED operation\u003c\/li\u003e\n  \u003cli\u003eExternal gain control via 3rd contact\u003c\/li\u003e\n  \u003cli\u003eFiber optic inverter output window\u003c\/li\u003e\n  \u003cli\u003eAVG glass input window\u003c\/li\u003e\n  \u003cli\u003eMinimum photocathode sensitivity: 2200 µA\/lm\u003c\/li\u003e\n  \u003cli\u003eLuminous gain: 50,000–80,000 fl\/fc\u003c\/li\u003e\n  \u003cli\u003eMinimum peripheral resolution: 57 lp\/mm\u003c\/li\u003e\n  \u003cli\u003eMinimum highlight resolution: 45 lp\/mm at 20 fc\u003c\/li\u003e\n  \u003cli\u003eUseful photocathode diameter: 17.5mm\u003c\/li\u003e\n  \u003cli\u003eMaximum mass: 78g\u003c\/li\u003e\n  \u003cli\u003eSpecified operating temperature: -55°C to +55°C\u003c\/li\u003e\n  \u003cli\u003eSpecified MTBF: minimum 10,000 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGeneration III GaAs Image Intensifier\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe HD-1520U-AUG-EGC-BW is specified by Harder Digital as a \u003cstrong\u003eGeneration III, 18mm microchannel wafer, ANVIS-type inverting image intensifier assembly\u003c\/strong\u003e. Its input stage uses an AVG glass window and a \u003cstrong\u003eGaAs photocathode\u003c\/strong\u003e, while the output uses a fiber optic inverter.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe supplied performance specification defines a minimum photocathode sensitivity of \u003cstrong\u003e2200 µA\/lm at 2856 K\u003c\/strong\u003e, alongside minimum radiant sensitivity values of 210 mA\/W at 830nm and 90 mA\/W at 880nm.\u003c\/p\u003e\n\n\u003ch2\u003eFOM 2600 Performance\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThis HD-1520U specification establishes a minimum \u003cstrong\u003eFigure of Merit (FOM) of 2600\u003c\/strong\u003e. FOM is derived from the relationship between image intensifier resolution and signal-to-noise performance and is commonly used as a reference point when comparing image intensifier tube specifications.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eHarder Digital specifies a minimum \u003cstrong\u003esignal-to-noise ratio of 34\u003c\/strong\u003e at 108 µlux together with a minimum limiting resolution of \u003cstrong\u003e72 lp\/mm at the centre\u003c\/strong\u003e. Minimum peripheral limiting resolution is 57 lp\/mm.\u003c\/p\u003e\n\n\u003ch2\u003eP45 Black \u0026amp; White Phosphor\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe tube incorporates a \u003cstrong\u003eP45 phosphor screen\u003c\/strong\u003e, producing the black-and-white scenery image specified by Harder Digital. This configuration is commonly described as white phosphor in night vision applications.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eMaximum output brightness at 1 and 20 foot-candles is specified between \u003cstrong\u003e3.0 and 4.5 foot-lamberts\u003c\/strong\u003e, while output brightness uniformity across a 17.0mm diameter is specified from 2:1 to a maximum of 3:1.\u003c\/p\u003e\n\n\u003ch2\u003eAutogating \u0026amp; External Gain Control\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe HD-1520U-AUG-EGC-BW features \u003cstrong\u003eAUTOGATED operation\u003c\/strong\u003e and \u003cstrong\u003eexternal gain control through a third contact\u003c\/strong\u003e. This provides the electrical architecture required for compatible night vision systems supporting external manual gain control.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe electrical specification lists a continuous input supply voltage from \u003cstrong\u003e2V to 3.7V\u003c\/strong\u003e, with a maximum input current of 35mA at ambient temperature and 50mA across the specified operational temperature range.\u003c\/p\u003e\n\n\u003ch2\u003eOptical Performance\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eOptical Specification\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003ePerformance\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003ePhotocathode Sensitivity @ 2856 K\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2200 µA\/lm minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eRadiant Sensitivity @ 830nm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e210 mA\/W minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eRadiant Sensitivity @ 880nm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e90 mA\/W minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eSignal-to-Noise Ratio @ 108 µlux\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e34 minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eLuminous Gain @ 2 × 10⁻⁶ fc\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e50,000–80,000 fl\/fc\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eFOM\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2600 minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eLimiting Resolution – Centre\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e72 lp\/mm minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eLimiting Resolution – Peripheral\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e57 lp\/mm minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eHighlight Resolution @ 20 fc\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e45 lp\/mm minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eUseful Photocathode Diameter\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e17.5mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eHALO\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e1.0mm maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eImage Alignment\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e0.3mm maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eModulation Transfer Function\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe supplied Harder Digital specification defines the following minimum \u003cstrong\u003eMTF (Modulation Transfer Function)\u003c\/strong\u003e performance:\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eSpatial Frequency\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eMinimum MTF\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2.5 lp\/mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e92%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e7.5 lp\/mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e80%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e15 lp\/mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e61%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e25 lp\/mm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e38%\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTube Spot Specification\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eHarder Digital specifies allowable opaque spots according to their diameter and position across three defined image zones. \u003cstrong\u003eBright spots are not allowed\u003c\/strong\u003e under the supplied performance specification.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eOpaque Spot Diameter\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eZone 1\u003cbr\u003eØ 5.6mm\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eZone 2\u003cbr\u003eØ 5.6–14.7mm\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eZone 3\u003cbr\u003eØ 14.7–18.0mm\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e228–300 µm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e0\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e0\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e0\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e152–228 µm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e0\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e1\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e76–152 µm\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e1\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eBright Spots\u003c\/td\u003e\n      \u003ctd colspan=\"3\" style=\"padding:8px;border:1px solid #333;\"\u003eNot Allowed\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eElectrical Characteristics\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003ePerformance\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eContinuous Input Supply Voltage\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2–3.7V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eInput Current – Ambient\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e35mA maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eInput Current – Operational Temperature Range\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e50mA maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eReverse Polarity – No Damage\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e60 seconds minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eBSP\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e60 seconds minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eEnvironmental Characteristics\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003ePerformance\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e-55°C to +55°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eStorage Temperature – 4 Hours\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e-57°C to +71°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eStorage Temperature – Long Term\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e-35°C to +55°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eShock\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e75g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eVibration\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e2.5g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eMean Time Between Failure\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e10,000 hours minimum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eForce on Bearing Surface\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e200N maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"text-align:left;padding:10px;border:1px solid #333;\"\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eManufacturer\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eHarder Digital\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eModel\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eHD-1520U-AUG-EGC-BW\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eGeneration\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eGeneration III\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eFormat\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e18mm Microchannel Wafer, ANVIS Type, Inverting\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eInput Window\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eAVG Glass\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003ePhotocathode\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eGaAs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eOutput Window\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eFiber Optic Inverter\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eScreen Phosphor\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eP45 – Black \u0026amp; White\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eImage Inversion\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eGating\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eAUTOGATED\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eExternal Gain Control\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e3rd Contact\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003eMass\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;border:1px solid #333;\"\u003e78g Maximum\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Choose the Harder Digital HD-1520U Gen III?\u003c\/h2\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe \u003cstrong\u003eHarder Digital HD-1520U-AUG-EGC-BW\u003c\/strong\u003e combines a minimum FOM of 2600 with 72 lp\/mm centre resolution, SNR 34, a high-sensitivity GaAs photocathode and P45 black-and-white output. AUTOGATED operation, external gain control and an 18mm ANVIS-type architecture make this specification a high-performance image intensifier option for compatible night vision systems requiring demanding optical and environmental performance.\u003c\/p\u003e","brand":"Harder Digital Gen3","offers":[{"title":"White Phosphors \/ MX10160 Manual Gain-Auto Gated (3pins) \/ Random","offer_id":55718962135331,"sku":null,"price":13450.0,"currency_code":"NZD","in_stock":true},{"title":"Green Phosphors \/ MX10160 Manual Gain-Auto Gated (3pins) \/ Random","offer_id":55718962168099,"sku":null,"price":13250.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/0632\/6051\/files\/Harder-1_c8c3e558-8bfd-49fd-a5a2-e35c327ec7a5.avif?v=1791635147","url":"https:\/\/nightraider.co.nz\/products\/harder-digital-2600-fom","provider":"Night Raider ","version":"1.0","type":"link"}