Ornge Considers Night-vision Goggles For Its Aircraft

Light-emitting diode (LEDs) Used in Night Vision Imaging System (NVIS) Compatible Lighting – Global Market Forecast

That was determined to be the cause of an earlier air ambulance accident in 2008, when a Sikorsky S-76A hit trees during a landing at a helipad in Temagami. Three of the four crew on board were seriously injured. That accident should have been the catalyst for the agency to introduce night vision equipment in its helicopter fleet, one former air ambulance pilot told the Star. I believe that if the pilots had been using (night vision goggles) that they would have been able to see that they were low on the approach path and been able to correct for it, preventing the accident, the pilot said. He worried that it was only a matter of time before ORNGE suffered an accident. It only makes sense that if pilots can see something they will not fly into it, he said. Now that (night vision goggles) are commonly available, there is no good reason for them to not be used by ORNGE. McCallum, who joined ORNGE in January, agrees that the 2008 crash should have prompted consideration of night-vision goggles.
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Where all-glass filters might fracture, lightweight plastic material survives the most demanding real-world environments. Quantitative Analysis LEDs face the challenge of creating definitive positions in the NVIS illumination market, as competing lighting solutions (technologies) are readily available and accepted. While this does not limit the potential success of LEDs, it does create some challenges.
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High Sensitivity Spectroscopy for Characterization of Night Vision Compatibility (NVC) Filters

Night vision devices employed in vehicles are quite sensitive to NIR light which is produced by lighting and displays within the vehicles. Ambient NIR light, if not appropriately filtered, can reduce the sensitivity of night vision devices to objects outside the vehicle. When night vision compatibility (NVC) filters are integrated as a window on light sources or displays, they help in minimizing the NIR produced from these devices by as high as 105x in the 600-930 nm range. Additionally, in order to maintain visibility for users who are not wearing NVDs, transmissions at shorter wavelengths should be at the maximum. Experimental Conditions Using Ocean Optics QE65000-ABS , two NVC filters were determined over the 350-950 nm range.
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