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A flashlight or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb , but these have been displaced by light-emitting diodes (LEDs) since the early 2000s.
Persian fallow deer in Dasht-e Naz Wildlife Refuge.. Spotlighting or lamping (also known as jacklighting, [1] shining, [2] illuminating, pit-lamping, and the killing lamp) is a method of hunting nocturnal animals using off-road vehicles and high-powered lights, spotlights, lamps or flashlights, that makes special use of the eyeshine revealed by many animal species.
A mechanically powered flashlight (UK: mechanically powered torch) is a flashlight that is powered by electricity generated by the muscle power of the user, so it does not need replacement of batteries, or recharging from an electrical source. There are several types which use different operating mechanisms.
The company used Seoul Semiconductor and Cree XR-E LEDs in flashlights introduced in 2007. [11] [12] More recently, flashlights with a strobe function, used for signalling or to disorientate were introduced. [13] A more notable product is the SureFire M6 Guardian, a flashlight with a 250 or 500 lumen beam from a xenon bulb. [14]
A typical problem with cameras using built-in flash units is the low intensity of the flash; the level of light produced will often not suffice for good pictures at distances of over 3 metres (10 ft) or so. Dark, murky pictures with excessive image noise or "grain" will result. In order to get good flash pictures with simple cameras, it is ...
Maglite 2 D cell flashlight. Maglite (also spelled Mag-Lite, stylized as MAG-LITE) is a brand of flashlight manufactured in the United States by Mag Instrument, Inc. located in Ontario, California, and founded by Anthony Maglica. It was introduced in 1979. [1] [2] Constructed principally of anodized 6061 aluminum, they have a variable-focus ...
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However, it is unclear whether this really created the illusion of motion or whether the account was an interpretation of the spatial movement of the pictures of animals. [3] Possibly the same device was referred to as "umbrella lamp" and mentioned as "a variety of zoetrope" which "may well have originated in China" by historian of Chinese ...