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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ส่วนหนึ่งของคำพูด: noun
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อุตสาหกรรม/ขอบเขต: Lights & lighting
Category: Lighting products
Company: GE
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Lights & lighting; Lighting products

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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Lights & lighting; Lighting products

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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Lights & lighting; Lighting products

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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Lights & lighting; Lighting products

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

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Lights & lighting; Lighting products

See SPECTRAL POWER DISTRIBUTION (SPD).

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Lights & lighting; Lighting products

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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อุตสาหกรรม/ขอบเขต: Language Category: General language

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Received Pronunciation (RP), also called the Queen's (or King's) English,[1] Oxford English,[2] or BBC English, is the accent of Standard English in ...