Night vision technology allows users to see in dark environments. It has both biological and technical forms, with the technical using either image intensification or thermal imaging. Image intensifiers amplify available light through a vacuum tube, while thermal imaging detects infrared radiation. Night vision was originally developed for the military but is now used for hunting, wildlife observation, surveillance, security, and navigation. It has progressed through several generations with improvements in gain, resolution, and low-light performance. Common night vision equipment includes scopes, goggles, and cameras.

1. NIGHT VISION TECHNOLOGY
Presented By
Md. Shakil Hossain, ID# 21205009
Abu Sayed, ID# 21205017
Md. Ashraf Jahan Khan, ID# 21205027
Naimul Huda, ID# 21205019
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2. PRESENTATION OUTLINE
 Introduction
 Types of Night Vision
 Working of Technical Night Vision Technology
 Purpose of Using Night Vision Technology
 Generations of Development
 Technical Characteristics of Night Vision
 Characteristics of Night Vision Technology
 Night Vision Equipment
 Conclusion
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3. INTRODUCTION
Night vision is technology that provides users with some vision in
total darkness and improved vision in low-light environments.
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Figure 01: Night vision technology

4. CONTINUE
See in the dark.
 Developed for military use.
 Lightweight goggles.
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5. TYPES OF NIGHT VISION
It is classify into two types
 Biological Night Vision
 Technical Night Vision
 Image intensifier
 Thermal imaging
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6. WORKING OF NIGHT VISION
Image intensifier : An image intensifier tube is a vacuum tube device for
increasing the intensity of available light.
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Figure 02: Image intensifier

7. Thermal imaging: Thermal imaging produce an image in the darkest of nights
and can see through light fog, rain, and smoke.
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Figure 03: Thermal imaging
CONTINUE

8. PURPOSE OF USING NIGHT VISION TECHNOLOGY
 The original purpose of night vision was to locate enemy targets
at night.
 Hunting
 Wildlife observation
 Surveillance
 Security
 Navigation
 Hidden-object detection
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9. GENERATIONS OF DEVELOPMENT
 Generation 1 (Developed in 1960’s);
 Vacuum Tube Technology
 Full Moon Operation
 Generation 2 (Developed in 1970's);
 First Micro channel Plate (MCP) Application
 One-Quarter Moon Operation
 Generation 2+ (1970s)
 Development increased image tube bias voltage to improve gain
 Additionally, a glass faceplate was added to improve resolution
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10. CONTINUE
 Generation 3 (Developed in 1990's);
 Improved MCP & Photocathode
 Starlight Operation
 Generation 4 Enhanced (2000's);
 Improvements in the photocathode and MCP resulted in increased
gain and resolution.
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11. TECHNICAL CHARACTERISTICS OF NIGHT VISION
 Textures, Light and Dark
 Depth Perception
 Fog and Rain
 Honeycomb
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12. CHARACTERISTICS OF NIGHT
VISION TECHNOLOGY
 Automatic Brightness Control (ABC)
 Auto-Gated Power Supply
 Black Spots
 Binocular
 Daylight Lens Cover
 Daylight Training Filter
 Distortion
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13. NIGHT VISION EQUIPMENT
 Scopes - Normally handheld or mounted on a weapon, scopes are
monocular (one eye-piece).
 Goggles - While goggles can be handheld, they are most often worn on the
head. Goggles are binocular(two eye-pieces) and may have a single lens or
stereo lens, depending on the model.
 Cameras - Cameras with night-vision technology can send the image to a
monitor for display or to a VCR for recording.
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14. CONCLUSION
 Learn from this presentation
 Future of this technology
 Advantages of this technology
 Disadvantages of this technology
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15. Thank You
;
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16. QUESTION SESSION
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