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Signal lamp training during World War II
A signal lamp (sometimes called an Aldis lamp or a Morse lamp[1]) is a visual signaling device for optical communication by flashes of a lamp, typically using Morse code. The idea of flashing dots and dashes from a lantern was first put into practice by Captain Philip Howard Colomb, of the Royal Navy, in 1867. Colomb's design used limelight for illumination, and his original code was not the same as Morse code. During World War I, German signalers used optical Morse transmitters called Blinkgerät, with a range of up to 8 km (5 miles) at night, using red filters for undetected communications.
Modern signal lamps produce a focused pulse of light, either by opening and closing shutters mounted in front of the lamp, or by tilting a concave mirror. They continue to be used to the present day on naval vessels and for aviation light signals in air traffic control towers, as a backup device in case of a complete failure of an aircraft's radio.
A signallamp (sometimes called an Aldis lamp or a Morse lamp) is a visual signaling device for optical communication by flashes of a lamp, typically using...
injury) can be achieved with amber rear turn signallamps at a cost comparable to red rear turn signallamp configurations. This is supported by the observation...
Look up LAMP or lamp in Wiktionary, the free dictionary. Lamp, Lamps or LAMP may refer to: Oil lamp, using an oil-based fuel source Kerosene lamp, using...
regarding safety of navigation and related matters. Signals can be sent by flaghoist, signallamp ("blinker"), flag semaphore, radiotelegraphy, and radiotelephony...
A germicidal lamp (also known as disinfection lamp or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet...
PAR46 sealed-beam lamp in these "programmable visibility" signals passes through a set of two glass lenses at the back of the signal. The first lens, a...
obvious. Signallamps (such as Aldis lamps), are visual signaling devices for optical communication (typically using Morse code). Modern signallamps are a...
A lava lamp is a decorative lamp, invented in 1963 by British entrepreneur Edward Craven Walker, the founder of the lighting company Mathmos. It consists...
An LED lamp or LED light is an electric light that produces light using light-emitting diodes (LEDs). LED lamps are significantly more energy-efficient...
in the case of a deaf pilot, air traffic control may use a signallamp (called a "signal light gun" or "light gun" by the FAA) to direct the aircraft...
A halogen lamp (also called tungsten halogen, quartz-halogen, and quartz iodine lamp) is an incandescent lamp consisting of a tungsten filament sealed...
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric...
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high signal, but sometimes dwarf signals use so-called "virtual heads" to save on space and cost. This is where a dwarf signal displays multiple lamps on...
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...
signallamp is a semaphore system using a visual signaling device, often utilizing Morse code. In the 19th century, the Royal Navy began using signal...
International Code of Signals International inspection pennant List of international common standards NATO phonetic alphabet Signallamp Yellow Jack International...
automotive change of direction Railway signalling, use of signal lights to control train traffic flow Signallamp, a device for communicating between ships...
An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc...
of these lamps was adequate and could be seen at sufficient distance to serve as a warning or signal. A central-draft lamp, or Argand lamp, works in...
electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have...
A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon...
A Carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C2H2), which is created by the reaction of calcium carbide (CaC2)...
Compact fluorescent lamp (CFL) examples A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light and compact fluorescent...
confused for a distant signal at 'caution'. Later signals using electric lamps used green lenses. Some signals converted to electric lamps from oil, used a...
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