наизменична струја (НС)

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 ...

фосфор

Luci ed illuminazione; Prodotti per l'illuminazione

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 ...

фактор снаге

Luci ed illuminazione; Prodotti per l'illuminazione

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 ...

зрачење

Luci ed illuminazione; Prodotti per l'illuminazione

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.

рефлексија

Luci ed illuminazione; Prodotti per l'illuminazione

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

спектар

Luci ed illuminazione; Prodotti per l'illuminazione

See SPECTRAL POWER DISTRIBUTION (SPD).

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Settore/Dominio: Festival Categoria: Halloween

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Also known as All Hallow's Eve, Halloween is an annual holiday celebrated on October 31st in America, Canada, and the UK. It is supposedly the one day ...