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.
Read more about Light Beam: Visible Light Beams, Other Applications
Famous quotes containing the words light and/or beam:
“Poor Casey Jones he was all right,
He stuck by his duty both day an’ night,”
—Unknown. Casey Jones. . .
Oxford Book of Light Verse, The. W. H. Auden, ed. (1938)
“Why beholdest thou the mote that is in thy brother’s eye, but considerest not the beam that is in thine own eye?”
—Bible: New Testament Jesus, in Matthew, 7:3.
From the Sermon on the Mount.