Optics And Night Vision

Optics is a very huge field in physics. Many inventions and discoveries are based on the optical research. Fiber optics has become one of the very important fields in the area of optics. It is, in fact, the result of advanced research of the quantum mechanics of Albert Einstein. Optics has created revolution in the field of every technological invention today. It, really, has glorified physics to a much higher level.

There is one area of optics called night vision optics. It finds practical application for hunters. It is used by the military. Many people who want to explore the unseen dark world in the night use night vision optics. Boaters, farmers, and champers also take the advantage of night vision optics. You need to keep the performance parameters in view in the area of night vision optics. It is also very important to have a complete concept of basic terms in the area of night vision optics.

If you are dealing with night vision optics, you need to take a decision. You have to think whether you want to choose monocular, binocular, or a goggle. Basically, it all depends upon the quality of image you want to have. You also have to keep in mind the intensity of the image visible in the night. The difference in the intensity of image in night vision optics is classified as per the generations.

In the generation 1 optics, photocathode tube is used. This tube gives you great performance at a very reasonable cost. In the generation 2 unit, you need to add a micro channel plate. This will decrease the distortion of the image. This will also amplify the light. In the generation 3 units, gallium arsenide is added to the intensifier tube. This produces brighter and sharp images. The generation 4 optics is based on the latest technology. This uses the gated film-less tubes. The basic advantage of these tubes is that they provide excellent low light level performance. They also triple the high light level resolution.