7628 Optoelectronics

Series:	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Type:	Incandescent
Moisture Sensitivity Level (MSL):	--
Color:	Clear
Voltage Rating:	6V
MSCP (Mean Spherical Candle Power):	0.63
Lens Style:	Round with Domed Top
Lens Size:	RT-1 1/4
Lead Style:	Radial - Bi-Pin

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Incandescent Lamps

Incandescent lamps are one of the oldest type of electric lamps, used commercially since the 19th century. They are based on the principle of electrical resistance causing a heat-producing emission of light. Incandescent lamps are used for both lighting and decorative purposes, and come in many shapes and sizes. The light they produce is yellowish and relatively low-intensity.

Construction and Working Principle

The construction of an incandescent lamp is fairly simple. It consists of a heated filament suspended in an evacuated glass bulb. A protective coating on the inside of the glass bulb prevents air from entering and damaging the filament. The filament is usually made of tungsten because of its high melting point and resistance to oxidation.When an electrical current is passed through the filament, it heats up until it begins to glow. The electrons within the filament vibrate and produce electromagnetic radiation in the form of visible light. The light produced by the filament is a combination of infrared radiation along with some visible light emission. As the temperature of the filament rises, the light emitted increases.

Applications

Incandescent lamps are typically used for general lighting applications, as well as some decorative purposes. They are usually used in homes, offices, shops, and restaurants. They are also used in non-traditional applications such as medical and scientific lamps for medical and dental treatments.

Neon Lamps

Neon lamps are a type of low-pressure, cathode-based electric sign lamp. They use an electrically charged gas, or neon, to generate light in a tube. They produce a distinct, mostly colored light. Neon lamps are one of the most popular and longest-used types of electric lamps.

Construction and Working Principle

Neon lamps are usually constructed of a cylindrical glass tube with electrodes at either end. They are then filled with a mixture of neon and argon gases at a low pressure. When electric current is passed through the tube, the electrons emitted from the cathode, the negative electrode, collide with the neon atoms and cause the atoms to emit photons of light. The light produced is in the form of a glow discharge. This glow discharge is different from the yellowish light produced by the traditional incandescent lamp. The light produced by a neon lamp has a distinctive color, typically red, green, or blue.

Applications

Neon lamps have many applications, from advertising and theatrical purposes to decorative lighting applications. They can be used to create signs and original works of art, such as the neon signs popularized in the 20th century. In addition, they are used in television and film sets, as well as in nightclubs and other establishments where colored lighting is desired. Neon lamps can also be used in a variety of medical and scientific applications.

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