NSI Class MIssel.pptx - EA Night Vision Training u2022 SGT...

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EA Night Vision Training SGT MISSEL
UNCLASSIFIED UNCLASSIFIED This Presentation is Classified: UNCLASSIFIED
UNCLASSIFIED UNCLASSIFIED Purpose The purpose of this presentation is to expand the enlisted aircrew’s knowledge of Night Vision Devices (NVD), Night Vision Goggles (NVG), human factors, as well as the night environment.
UNCLASSIFIED UNCLASSIFIED Learning Objectives Describe the characteristics of the AN/AVS-9R Night Vision Goggles Describe the AN/AVS-9R power source State the authorized methods and devices for focusing NVGs Demonstrate proper focusing procedures
UNCLASSIFIED UNCLASSIFIED Learning Objectives Describe the differences in NVG performance during high light level (HLL) and low light level (LLL) operations Describe the effects of clouds, snow, rain, fog, and dust on the NVGs Discuss the crew coordination considerations during NVG operations Discuss weapon procedures while operating with NVGs
UNCLASSIFIED UNCLASSIFIED Reference MAWTS-1 Night Vision Device (NVD) Manual 10 th Edition
UNCLASSIFIED UNCLASSIFIED Outline NVG History and Characteristics Night Environment Human Factors Weapons Considerations Summary
UNCLASSIFIED UNCLASSIFIED Night Vision History Ways to overcome darkness Searchlights These were traceable and pin pointed friendly locations Near infrared searchlights and viewer Needed a device with no traceable signature
UNCLASSIFIED UNCLASSIFIED Generation I
UNCLASSIFIED UNCLASSIFIED Generation I Image Intensifier (I²) Tube SCENE OBJECTIVE LENS PHOTOCATHODE AMPLIFICATION & IMAGE INVERSION INTENSIFIED IMAGE VIEWING SCREEN OCULAR E E E E E E E E E E E E E E E E E E P P P P P P P P P P P P P
UNCLASSIFIED UNCLASSIFIED Generation I Image
UNCLASSIFIED UNCLASSIFIED Generation II
UNCLASSIFIED UNCLASSIFIED Generation II I² Technology Development of the Microchannel Plate Reduced distance between I² components Proximity focus Little or no distortion Still blooming No saturation NVG image “halo” Service life degradation Gen I; 10,000 hours Gen II; 4,000 hours Objective Lens Photocathode Micro Channel Plate Phosphor Screen Eyepiece Lens Light and Near Infrared Energy - Electrons + Light
UNCLASSIFIED UNCLASSIFIED GEN II Image
UNCLASSIFIED UNCLASSIFIED Generation III
UNCLASSIFIED UNCLASSIFIED That’s the History. Now how it works
UNCLASSIFIED UNCLASSIFIED I² Tube Takes available light from the night sky, both visible and invisible to the naked eye and amplifies it to allow the user to see through the eyepiece Photocathode Microchannel Plate Phosphor Screen Photocathode Micro Channel Plate Phosphor Screen
UNCLASSIFIED UNCLASSIFIED Photocathode Photon to electron converter Near IR energy into electrical energy Processed or “grown” by vaporizing in a vacuum chamber Very delicate process affecting gain and sensitivity of I² tube
UNCLASSIFIED UNCLASSIFIED Microchannel Plate (MCP) Electron multiplier Very thin (1mm) wafer > 6 million glass tubes tilted at approx 5 deg.

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