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%ما هو (من)٪ 1 - تعريف
ULTRAVIOLET C LIGHT-EMITTING DEVICE
Germicidal light; Germicidal lighting; Germicidal fixture; Germicidal light fixture
![A 9W germicidal lamp in a modern [[compact fluorescent lamp]] form factor](https://commons.wikimedia.org/wiki/Special:FilePath/Germicidal Lamp 1.jpg?width=200 "A 9W germicidal lamp in a modern [[compact fluorescent lamp]] form factor")
![UVC]] [[LED]] lamp with [[heatsink]] and power cable](https://commons.wikimedia.org/wiki/Special:FilePath/UV-C LED lamp.jpg?width=200 "UVC]] [[LED]] lamp with [[heatsink]] and power cable")
Grapple fixture
COMPONENT ON SPACECRAFT AND OTHER OBJECTS WHICH CAN BE GRASPED BY A ROBOTIC ARM
Power Data Grapple Fixture; Flight-Releasable Grapple Fixture; Grapple Fixture
Grapple fixtures are used on spacecraft or other objects to provide a secure connection for a robotic arm.
table lamp
![A decorative outdoor lamp at [[Leeds Town Hall]].](https://commons.wikimedia.org/wiki/Special:FilePath/Leeds Town Hall (27th May 2010) 006.jpg?width=200 "A decorative outdoor lamp at [[Leeds Town Hall]].")
.JPG?width=200 "Old table lamps at Archaeological Museum, Sri Lanka")
![Lamp and [[lampshade]] made of Tiffany glass; circa 1890-1900; [[Budapest Museum of Applied Arts]] ([[Budapest]], [[Hungary]])](https://commons.wikimedia.org/wiki/Special:FilePath/Lamp and lampshade Tiffany.jpg?width=200 "Lamp and [[lampshade]] made of Tiffany glass; circa 1890-1900; [[Budapest Museum of Applied Arts]] ([[Budapest]], [[Hungary]])")
![Lamp; 1902-1918; lead and glass; 67.9 x 52.1 cm; [[Metropolitan Museum of Art]] (New York City)](https://commons.wikimedia.org/wiki/Special:FilePath/Lamp MET DP239606.jpg?width=200 "Lamp; 1902-1918; lead and glass; 67.9 x 52.1 cm; [[Metropolitan Museum of Art]] (New York City)")
!["Daffodil" lamp; 1904–1924; leaded opalescent glass and gilt bronze; height: 67.9 cm, diameter of shape: 51.4 cm; Metropolitan Museum of Art](https://commons.wikimedia.org/wiki/Special:FilePath/"Daffodil" lamp MET DP-16377-003.jpg?width=200 "\"Daffodil\" lamp; 1904–1924; leaded opalescent glass and gilt bronze; height: 67.9 cm, diameter of shape: 51.4 cm; Metropolitan Museum of Art")
DEVICE THAT PROVIDES LIGHT
Lighting fixture; Lampstand; Luminaire; Desk lamp; Desk lamps; Lamp (fixture); Study lamp; Light fixure; Table lamp; Light fitting
(table lamps)
A table lamp is a small electric lamp which stands on a table or other piece of furniture.
N-COUNT
luminaire
DEVICE THAT PROVIDES LIGHT
Lighting fixture; Lampstand; Luminaire; Desk lamp; Desk lamps; Lamp (fixture); Study lamp; Light fixure; Table lamp; Light fitting
['lu:m?n?:, ?lu:m?'n?:]
¦ noun a complete electric light unit.
Origin
early 20th cent.: from Fr.
ويكيبيديا
Germicidal lamp
A germicidal lamp (also known as disinfection lamp or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing, causing formation of pyrimidine dimers, and leads to the inactivation of bacteria, viruses, and protozoans. It can also be used to produce ozone for water disinfection. They are used in ultraviolet germicidal irradiation (UVGI).
There are four common types available:
- Low-pressure mercury lamps
- High-pressure mercury lamps
- Excimer lamps
- LEDs
