出典:Wikipedia
出典:『Wikipedia』 (2011/04/07 11:29 UTC 版)
Solid-state lighting (SSL) refers to a type of lighting that uses semiconductor light-emitting diodes (LEDs), organic light-emitting diodes (OLED), or polymer light-emitting diodes (PLED) as sources of illumination rather than electrical filaments, plasma (used in arc lamps such as fluorescent lamps), or gas.
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間接照明.
直接照明.
光度.
散光.
a light with a stand that stands on the floor
the light produced by an electric light
the lamp-lighting charge
the condition of keeping the light turned off