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lumen |
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lumen: see photometry photometry (fōtŏm`ətrē) ..... Click the link for more information. . lumenA unit of measurement of the amount of brightness that comes from a light source. Lumens define "luminous flux," which is energy within the range of frequencies we perceive as light. For example, a wax candle generates 13 lumens; a 100 watt bulb generates 1,200 lumens. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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They fancy some foul, obscure den, some horrible Tartarus "informis, ingens, cui lumen ademptum. - And afterwards, Non cui profundum Cæcitas lumen dedit Dircæus augur vidit hunc alto sinu, &c. Above him was the throat of the balloon bunched and tied together, but with an open lumen through which,Bert could peer up into a vast, empty, quiet interior, and out of which descended two fine cords of unknown import, one white, one crimson, to pockets below the ring. |
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