www.tricksworld.net.tc ABSTRACT Night Vision technologies encompass techniques of image conversion, image intensification and thermal imaging. Each has distinct characteristics and capabilities. The current image intensification technology -- utilizing photocathode, phosphor screens and micro channel plates -- illustrates the technology of light amplification and image resolution. INTRODUCTION CONTENTS WHAT IS NIGHT VISION HISTORY BASICS HOW IT WORKS IMAGE ENHANCEMENT THERMAL IMAGING TYPES OF THERMAL IMAGING DEVICES EQUIPMENTS APPLICATIONS ADVANTAGES CONCLUSION INTRODUCTION Till now, Visualizing objects at night has been a herculous task for human eye without having sufficient light sources. But now in this century, we have overcome this problem with a greater solution for this problem. NIGHT VISION TECHNOLOGY – Which gives us the ability to see in conditions that are too dark for a naked eye. What is Night Vision? Night Vision is an optical device consisting of high- quality image intensifier tubes and optics that amplify existing light. It has an Infrared Illuminator, which provides a light source for the system to amplify the images. It can give you the enhanced images in very low light conditions, such as caves, where no ambient light is available for amplification of the objects inside. HISTORY NVDs have been around for more than 40 years. They are categorized by generations. Each substantial change in NVD technology establishes a new generation. GENERATION 0 GENERATION 1 GENERATION 2 GENERATION 3 GENERATION 4 Infrared Light: Infrared light is a small part of the light spectrum Atom: An atom has a nucleus and an electron cloud. TECHNOLOGIES With the proper night-vision equipment, you can see a person standing over 200 yards (183 m) away on a moonless, cloudy night. Night vision can work in two very different ways, depending on the technology used. Image Enhancement Thermal imaging IMAGE ENHANCEMENT THERMAL IMAGING TYPES OF THERMAL IMAGING DEVICES During the day time During the Night Time Types: •Un-Cooled • Cryogenically Cooled Thermal imaging lets you see again. EQUIPMENTS 1. SCOPES DARK INVADER Multi-purpose Pocket scope 2. GOGGLES DARK INVADER Night-vision Goggles 4501 3. CAMERAS APPLICATIONS Common Applications for Night Vision include: Military Law enforcement Hunting Wildlife observation Surveillance Soldier using DARK INVADER Security, Navigation night-vision goggles. Hidden-object detection Entertainment ADVANTAGES With the proper night-vision equipment, we can see a person standing over 200 yards (183 m) away on a moonless. More flexible in Locating enemy targets in Military. Most useful for the experiments carried out in the Darkness. CONCLUSION Although the term “Night Vision” currently encompasses three distinct technologies, it is the evolution of image intensification technology that first made devices practical and widely used. Their success was the result of advancements in light amplification and resolution techniques. ANY QUESTIONS ?
Pages to are hidden for
"NIGHT VISION TECHNOLOGY seminar presentation"Please download to view full document