Lumen
At Lumen (ütspreegen: luumen, latiinsk för laacht) as det SI-ianhaid för di laachtstruum.
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Füsikaalisk ianhaid | |
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Nööm | Lumen |
Ianhaidentiaken | |
Füsikaalisk grate | Laachtstruum |
Formeltiaken | |
Dimension | |
Süsteem | SI |
Uun SI-ianhaiden | |
Näämd efter | latiinsk lumen, „Laacht“ |
Bereegnang
1 Lumen as di laachtstruum faan 1 Candela (laachtmäächt) mool 1 Steradiant (sr).
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