Essay On Night Vision Goggles

How can the military track down civilians in pitch black? A gadget called Night Vision Goggles. These were first invented by Kalman Tihanyi, a physicist who developed the idea for the Hungarian military in the 1930’s.They were originally thought of so tank drivers could see heir surroundings in the night so they could continue fighting. Night Vision Goggles help you see in the dark by using one of three ways. The first technology that is used in Night Vision goggles is called image enhancement. This kind of technology takes all possible light and makes it visible. As you may know, not all light is visible to the raw eye. In fact, the only wave of light humans can actually see is visible light. In order to see all other light, we need assistance. A great source of assistance to humans is called Night vision. Night vision helps us see all light, which includes many different types of light.Visible light excludes gamma rays, radio waves, micro-waves, x-ray waves, human eye transfers it through layers of the googles to make it visible to the human eye. The way this is possible is by transferring non-visible light and pushing it through multiple lenses of night vision goggle and applying a green glow to the now visible light. The reason there is a green glow is because humans are most sensitive

This applies a blue/grey tint to the final image collecting a measure of temperatures called a thermogram of the surroundings and turning it into visible light. It also collects all light in the upper portion of the electromagnetic spectrum. This light includes gamma rays, infrared waves, and x-rays. Thermal imaging captures and reads infrared rays from plants and humans and about everything in your surroundings. This technology can sense things far away or close. Helicopters use this way of night vision a lot. This type of technology is commonly used in helicopter radar and wildlife