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Two modern electric lamps with lampshades. A lampshade is a fixture that envelops the light bulb to redirect the light it emits. The shade is often affixed onto a light fixture to reduce the intensity of the light to observers, shield the light from a harsh environment, or for decoration by altering the color or creating shadows.
The patent calls the design "Closed Vessel with Perforated Cover", and Kopp applied for the patent on January 24, 1891. [57] A publication released in 1998 valued a rare pair of these rose shakers, with a holder, at $710 to $730 (equivalent to $1,346 in 2023). [58] In 1892, Fostoria Shade and Lamp produced a lamp shaped like Santa Claus.
The insert at lower right shows the pattern this device projects. The spacing of the gobo and the lens can be varied to alter the size and focus of the image. A gobo is an object placed inside or in front of a light source to control the shape of the emitted light and its shadow.
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation. Electric current is supplied to the filament by terminals or wires ...
Modern beaded flowers, yellow made in the French beading technique and pink in the Victorian beading technique. Today, beadwork is commonly practiced by jewelers, hobbyists, and contemporary artists; artists known for using beadwork as a medium include Liza Lou, Ran Hwang, Hew Locke, Jeffery Gibson, and Joyce J. Scott.
In the 1980s, after watching a salvage operation, Bob Rosenzweig started the reproduction and selling of his faux-antique bulbs. [9] These vintage-style light bulb reproductions were sold mostly to collectors and prop houses, and continued until the turn of the 21st century when new regulations banned low-efficiency lighting in many countries.
A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...
It involves using light to transfer a pattern onto a substrate, typically a silicon wafer. The process begins with a photosensitive material, called a photoresist, being applied to the substrate. A photomask that contains the desired pattern is then placed over the photoresist. Light is shone through the photomask, exposing the photoresist in ...