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Photonics Handbook
A unique collection of technical design and applications articles, as well as technology primers presenting the basics of the photonics technology.
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ARTICLE OF THE HOUR Image Intensification
The Technology of Night Vision
Through succeeding generations, image intensifying devices have brought vision to the dark of night. Image intensification, the basis of night vision, is a complex conversion of energy particles that occurs within a vacuum tube. An image-intensifier system works by collecting photons through an objective lens, converting them to electrons via a photocathode, increasing the electrical energy with a microchannel plate (MCP), converting the electrical energy back to light using a phosphor screen...