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When laid flat, it may be called a light table. Generally, a lightbox uses light similar to daylight (5,000–6,000 kelvins (K)) and has uniform light strength on the glass pane. [3] In the form of vertical panels, they can also be found mounted on the walls of hospitals and medical offices to review X-ray images (X-ray illuminator). [4]
By the 1920s, battery holders used twin metal clips (like fuse holders) to hold the battery in place while making electrical contact. Patent no. 1439429 was granted in Dec. 1922 for an assembly with two spring arm clips, a small switch, and a lamp assembly on the end of connected wires.
A lightbulb socket, lightbulb holder, light socket, lamp socket or lamp holder is a device which mechanically supports and provides electrical connections for a compatible electric lamp base. [1] Sockets allow lamps to be safely and conveniently replaced (re-lamping).
Animation showing how a Faraday cage (box) works. When an external electrical field (arrows) is applied, the electrons (little balls) in the metal move to the left side of the cage, giving it a negative charge, while the remaining unbalanced charge of the nuclei give the right side a positive charge. These induced charges create an opposing ...
April 28, 2009: An Energizer inductive charging station for the Wii remote was reported on IGN. [28] At CES in January 2009, Palm, Inc. announced its new Pre smartphone would be available with an optional inductive charger accessory, the "Touchstone". The charger came with a required special backplate that became standard on the subsequent Pre ...
It featured the luxury utility segment's first factory-installed 20-inch chrome wheels, a chrome grille, a slightly lowered suspension, and an interior with an ebony-and-shale dashboard, shale leather upholstery, pleated door panel bolsters, heated and cooled seats (front and back), heated and cooled cup holders, moon roof, and second- and ...
LightInTheBox was founded in June 2007. The company started with a registered capital of US$3 million. [2] It operated as Light In The Box Limited until March 2008, when it was restructured and incorporated as LightInTheBox Holding Co., Ltd., acting as the ultimate holding company.
A softbox can be used with either flash or continuous light sources such as fluorescent lamps or "hot lights" such as quartz halogen bulbs or tungsten bulbs. If softbox lights are used with "hot" light sources, the photographer must be sure the softbox is heat rated for the wattage of the light to which it is attached in order to avoid fire hazard.
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