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Lighting |
Record 101 to 125 of 140 |
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Lamp, Hand The hand lamp is a portable lamp. ... |
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Lamp, Incandescent The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence, (a general term for heat-driven light emissions which includes the... |
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Lamp, Incandescent The incandescent lamp or globe lamp, showing carbon filament at a.... |
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Lamp, Oil "Open oil lamp commonly worn on hat. Wick is inverted in spout." -Bodmer, 1917... |
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Lamp, Pagan (Shape of Foot) "A pagan votive lamp of bronze, now in the museum at Naples." -Bodmer, 1917... |
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Lamp, Wall This wall lamp is mounted on a wall. It is designed with foliage.... |
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Lamp, Wall This wall lamp is mounted on a wall. It is designed with foliage.... |
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Lantern A parabolic reflection lantern.... |
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Light Bulb, Carbon "The carbon lamp-- the oldest form of incandescent lamp." -Bodmer, 1917... |
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Light Bulb, Edison's First "Edison's first lamp with a filament of bamboo fibre." -Bodmer, 1917... |
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Light Bulb, Mazda (Improved) "Improved Mazda lamp for lighting large areas-- the most efficient lamp ever made." -Bodmer, 1917... |
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Light Bulb, Mazda (Standard) "Standard Mazda lamp-- the highest development of the incandescent lamp." -Bodmer, 1917... |
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Light Bulb, Tantalum "The Tantalum lamp developed just before the Mazda lamp." -Bodmer, 1917... |
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Light Intensity "A card placed at point A receives normal light. At point B the card receives four times as much light, but only at 1/4 intensity. At point C nine times the area covered, but only 1/9 the intensity." ... |
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Light, Fan The fan light is intended to be placed over a doorway or window.... |
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Light, Street (First in America) "The first street light in America. Early in 1795 several large cressets were placed on the corners of Boston's most frequented street. Pine-knots were placed in these fire baskets by the night watchm... |
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Lighthouse An elevated structure or tower placed near a seaport or some headland for the purpose of protecting vessels at night by warning navigators of danger, and also serving as a general landmark.... |
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Lighting, Gas Lamps using natural gas to produce light. Uses convention make the lamp very efficient.... |
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Match A splint of wood, with one end dipped in a chemical preparation of phosphorus.... |
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Moderator Lamp "The moderator lamp, invented by M. Franchot about 1836, from the simplicity and efficiency of its arrangements rapidly superseded about all other forms of mechanical lamps. The two essential feature... |
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Oxy-calcium Lamp "A small cylinder of lime is heated to intense luminosity in the flame of a spirit lamp through which a jet of oxygen plays." —The Encyclopedia Britannica, 1903... |
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Parabolic Profile "In order strictly to equalize a fixed light over the whole horizon, which could not possibly be done with separate reflectors, Marcet proposed this ingenious instrument, which is generated by the rev... |
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Parabolic Reflector "In 1763, or at latest before 1777, parabolic reflectors were first used for lighthouse illumination by Mr. Hutchinson, dockmaster of Liverpool. In his work on Practica Scamanship, published in 1777,... |
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Parabolic Reflector "In 1763, or at latest before 1777, parabolic reflectors were first used for lighthouse illumination by Mr. Hutchinson, dockmaster of Liverpool. In his work on Practica Scamanship, published in 1777,... |
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Paraboloid "It will be seen that the parabolic mirror a is at best but a very imperfect instrument, for even if the radiant were strictly a mathematical point, the cone of rays (shown undotted) escaping past the... |
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