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127 Application Field and Working Principle

Lamps - Incandescents

Incandescent lamps are the most common type of lamp used in households and commercial or industrial facilities. In simple terms, they work by passing electric current through a thin filament wire suspended inside a glass bulb containing an inert gas, usually argon or nitrogen. This in turn produces light due to the heating of the filament wire.

The filament is heated until it is glowing white hot. The wire is usually drawn or ‘torn’ into a thread-like shape, which is then coiled or pinched into a variety of different shapes and sizes. The filaments are surrounded by a highly evacuated glass or quartz bulb to form an airtight seal and filled with an inert gas.

When the current is applied to the filament, it heats up rapidly due to the high resistance of the wire. This produces heat, which in turn emits a bright light. The filament eventually deteriorates over time due to the repeated heating and cooling, causing the light to diminish gradually and eventually burn out.

Incandescent lamps are typically available in various shapes and sizes, ranging from small standard bulbs to large floodlights. They are also available in several wattages to suit different applications. The most common incandescent bulbs are A-shape (also known as A-lamp) and globe (also known as G-shape).

Incandescent lamps are generally the most energy-inefficient and shortest life type of lighting, but are still used today due to their low cost and wide range of sizes and applications.

Lamps - Neons

Neon lamps are gas-filled tubes consisting of one or more materials such as neon, argon, xenon, krypton, or helium. The tubes are sealed at each end and electrodes are attached to each end in order to introduce electricity. When current flows through the tube, the gas inside the tube is ionized, causing it to glow in different colors.

The most common application for neon lamps is signs, as they can be configured into a variety of shapes and sizes. Neon is also used in some domestic applications such as night lights and decorations. Neon is also used in scientific and industrial applications, such as in laser systems or in laboratory experiments.

One of the biggest advantages of neon lamps is their extremely long life. Some can last upwards of 10,000 hours or more, making them much more efficient than incandescent bulbs. They also have a low power draw and are available in a wide range of colors and sizes.

Neon lamps are commonly used for many different applications, including signs, scientific and laboratory experiments, domestic lights, and even lasers. They are also extremely long-lasting and energy-efficient, making them a great choice for many different applications.

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