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A lamp shade's surfaces have varying proximity to the light bulb or light source itself, depending on the size and shape of the shade. With larger shades this is less of a problem, since the shade provides an ample funnel for the movement of air up through the shade, whereby heat from the bulb leaves the top of the shade through the opening.
By the summer of 1892, a report in a trade journal mentioned the company's wide variety of colors, shapes, sizes, and styles for lamps—and was also complimentary of the lamp shades. [52] [Note 7] The Fostoria Shade and Lamp company was the largest manufacturer of lamp shades in the United States. [54]
Mogul-base lamps are available for industrial use in larger power ratings (250–1500) and in halogen, mercury vapor, high-pressure sodium and metal-halide lamp configurations. Compact fluorescent mogul-base bulbs are also available, as are adaptors to allow medium-base bulbs to be used in mogul sockets.
In photography, a lens hood or lens shade is a device used on the front end of a lens to block the Sun or other light source(s) to prevent glare and lens flare. [1] Lens hoods may also be used to protect the lens from scratches and the elements without having to put on a lens cover .
Table lamp fixtures, standard lamp fixtures, and office task light luminaires. Balanced-arm lamp is a spot light with an adjustable arm such as anglepoise, RAMUN or Luxo L1. Gooseneck (fixture) Nightlight; Floor Lamp Torch lamp or torchières are floor lamps with an upward-facing shade. They provide general lighting to the rest of the room.
MR lamps are designated by symbols such as MR16 where the diameter is represented by numerals indicating units of eighths of an inch. Common sizes for general lighting are MR11 (11 ⁄ 8 inches, 35 mm) and MR16 (16 ⁄ 8 inches, 51 mm), with MR8 (8 ⁄ 8 inch, 25 mm) and MR20 (20 ⁄ 8 inches, 64 mm) used in
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