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Ott believed that the proprietary lighting technology he developed was the closest replication of the Sun's natural wavelengths. He developed several consumer products based on this technology, including altered lightbulbs and a special pair of polarized sunglasses which he believed would enhance the physical and mental fortitude of anyone wearing them.
The banker's lamp is a style of electric desk or table lamp often characterized by a brass stand, green glass lamp shade, and pull-chain switch. Such a lamp was first patented in the United States under the Emeralite brand name. These types of lamp are frequently used in libraries throughout the United States, which have made the lamp popular ...
Light therapy, also called phototherapy or bright light therapy is the exposure to direct sunlight or artificial light at controlled wavelengths in order to treat a variety of medical disorders, including seasonal affective disorder (SAD), circadian rhythm sleep-wake disorders, cancers, neonatal jaundice, and skin wound infections.
In 1915, during World War I, the Tilley company moved to Brent Street in Hendon, and began developing a kerosene pressure lamp. [12] In 1919, Tilley High-Pressure Gas Company started using kerosene as a fuel for lamps. [13] In the 1920s, Tilley company got a contract to supply lamps to railways, and made domestic lamps. [12]
1994 T5 lamps with cool tip are introduced to become the leading fluorescent lamps with up to 117 lm/W with good color rendering. These and almost all new fluorescent lamps are to be operated on electronic ballasts only. [5] 1994 The first commercial sulfur lamp is sold by Fusion Lighting.
Some human remains at Buchenwald, [1] including a lampshade made of human skin. [2]There are two notable reported instances of lampshades made from human skin.After World War II it was claimed that Nazis had made at least one lampshade from murdered concentration camp inmates: a human skin lampshade was displayed by Buchenwald concentration camp commandant Karl-Otto Koch and his wife Ilse Koch ...
A carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C 2 H 2), which is created by the reaction of calcium carbide (CaC 2) with water (H 2 O). [ 1 ] Acetylene gas lamps were used to illuminate buildings, as lighthouse beacons, and as headlights on motor-cars and bicycles.
A kerosene lamp produced by the factory of Karlskrona Lampfabrik in Sweden c. 1890s Swiss flat-wick kerosene lamp. The knob protruding to the right adjusts the wick, and hence the flame size. A kerosene lamp (also known as a paraffin lamp in some countries) is a type of lighting device that uses kerosene as a fuel.