Night vision technology allows humans to see in low light conditions using either image intensification or thermal imaging. It has military, hunting, security, and other applications. Night vision works by either amplifying available light using an image intensifier or detecting infrared radiation using thermal imaging. It has advantages for security, military, and other uses but also has disadvantages like lack of color and high costs.

1. BY
Banda Pruthvi Raj
NIGHT VISION TECHNOLOGY

2. WHAT I WILL COVER!!!!
 What is night vision
 History
 Working of night vision device
 Applications
 Conclusion

3. WHAT IS NIGHT VISION TECHNOLOGY?????

4. INTRODUCTION
• The word ‘Night vision’ itself means the ability to
see in low light conditions.
• Humans have poor night vision compared to
many other animals.

5. (CONTD…)
• So we all might have a question in our mind that is this really
possible to see in the dark night?
• The answer is……..YES, we can see in the dark night using the
proper equipment made by using this technology.
• We can see a person standing over 183m(200 yards) away in
the dark night.

6. HISTORY
• Pre 1940’s: Spotlights were used for operations at
night.
• Due to the nature of these early night vision devices
(NVD), they gave away tactical positions.
• Military scientists began to think of ways to improve
night vision to gain a strategic advantage

7. HOW DOES IT WORKS??

8. Two technologies are used for night
vision:
(1)Thermal Imaging
(2)Image Intensification

9. IMAGE INTENSIFICATION
(LIGHT AMPLIFICATION)

10. VARIOUS STAGES …

11. THERMAL IMAGING

12. Infrared
detectors
Thermogram
Chip
Display
screen

13. NIGHT VISION DEVICES
It can be splitted in three broad categories:
Scopes
Goggles
Cameras

14. SCOPES

15. GOGGLES

16. CAMERAS

17. APPLICATIONS
 Military
 Hunting
 Wildlife observation
 Surveillance
 Security
 Hidden-object detection
 Entertainment

18. lThis is used in military
lAn increase in night time situations
for pilots
lIt permit user to see object which
cannot be seen by our aided eye
ADVANTAGES

20. .

21. SECURITY PURPOSE

24. DISADVANTAGE
• Lack of color discrimination
• High initial cost to purchase
• On going maintenance is required
• Need for current training
• Decreased field of aided view
• Used by terrorists

25. ANY QUERIES