A light beam or beam of light is a narrow projection of light energy

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A light beam or beam of light is a narrow projection of light energy

Post by jancancook on Mon Mar 28, 2011 9:25 am

A light beam or beam of light is a narrow projection of light energy radiating from a source into a beam. Sunlight is a natural example of a light beam when filtered through various mediums (clouds, foliage, windows, etc). To artificially produce a light beam, a lamp and a parabolic reflector is used in many lighting devices such as spotlights, car headlights, PAR Cans and LED housings. Light from certain types of laser has the smallest possible beam divergence, thus producing the most parallel light beams possible.

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