фосфор

фосфор

An inorganic chemical compound processed into a powder and deposited on the inner glass surface of fluorescent tubes and some mercury and metal-halide lamp bulbs. Phosphors are designed to absorb short wavelength ultraviolet radiation and to transform and emit it as visible light (See FLOURESCENCE).

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Industri / Domain: Lampu & pencahayaan
Kategori: Produk-produk pencahayaan
Company: GE
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Lampu & pencahayaan; Produk-produk pencahayaan

For electrical discharge lamps, this is the voltage measured across the discharge when the lamp is operating. It is governed by the contents of the chamber and is somewhat ...

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Lampu & pencahayaan; Produk-produk pencahayaan

Measurement of the relationship between the AC source voltage and current. High power factor ballasts require less AC operating current at the same wattage than an equivalent low ...

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Lampu & pencahayaan; Produk-produk pencahayaan

A general term for the release of energy in a "wave" or "ray" form. All light is radiant energy or radiation, as is heat, UV, microwaves, radio waves, etc.

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Lampu & pencahayaan; Produk-produk pencahayaan

The ratio of light reflected from a surface to that incident upon it.

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Lampu & pencahayaan; Produk-produk pencahayaan

See SPECTRAL POWER DISTRIBUTION (SPD).

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Lampu & pencahayaan; Produk-produk pencahayaan

Radiant energy in the range of about 100-380 nanometers (nm). For practical applications, the UV band is broken down further as follows: Ozone-producing - 180-220 nm; Bactericidal ...

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Industri / Domain: Olahraga Kategori: Sepak bola

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The championship game of the NFL (National Football League,) played between the champions of the AFC and NFC at a neutral site late January or early ...