Arc Lamps

Arc Lamps

Arc lamps are a type of electric lamp that produces light by creating an electric arc between two electrodes. The light is emitted from the arc itself, rather than from a filament as in incandescent bulbs. Arc lamps were first developed in the late 19th century and were widely used for street lighting, searchlights, and even in early movie projectors. The basic design of an arc lamp consists of two electrodes, typically made of carbon or tungsten, that are separated by a small gap. When a high voltage is applied across the electrodes, an electric arc is created, which produces an intense, bright light. The arc is typically enclosed in a glass or quartz bulb filled with a gas, such as xenon, which helps to stabilize the arc and improve the efficiency of the lamp. Arc lamps are known for their high brightness and long life, making them ideal for applications where a lot of light is needed for an extended period of time. They are also highly efficient, converting a large percentage of the electrical energy into visible light. However, they can be expensive to operate and maintain, as they require high voltages and specialized equipment to operate. Despite their high cost, arc lamps continue to be used in a variety of applications, including stage lighting, film production, and scientific research. They are also used in some industrial processes, such as welding and cutting, where their intense heat and light can be used to melt and shape metal.

electric lamp, electric arc, electrodes, tungsten, xenon

— William Martin