| 单词 | international candle |
| 释义 | > as lemmasinternational candle d. A standard spermaceti candle formerly used as a unit of illuminating power: hence candle power; frequently called international candle. Also, with prefixed numeral, = candle power n. at Compounds 2. Replaced as a unit of luminous intensity by the new candle (see quot. 1937) = candela n. ΘΚΠ the world > matter > light > illumination > [noun] > unit of illumination > standard candle standard candle1850 candle1866 candle power1877 the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > degree of intensity intensity1794 candle1866 Lambert1895 the world > matter > light > artificial light > an artificial light > candle > [noun] > made from animal fat > made from whale blubber > used as a unit of illuminating power candle1866 the world > matter > light > illumination > [noun] > unit of illumination > candela new candle1938 candela1950 cd1950 the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > unit of light intensity lux1889 lumen1898 L1915 Lambert1915 phot1917 new candle1938 candela1950 cd1950 rayleigh1956 1860 Act 23 & 24 Vict. c. 125 §25 The Quality of the Common Gas..shall be..such as to produce..a Light equal in Intensity to the Light produced by not less than Twelve Sperm Candles.] 1866 H. E. Roscoe Lessons Elem. Chem. ix. 84 The cannel gas is said to be equal to 34·4 candles. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) II. 553 10,500 cubic feet of 25-candle gas to the ton. 1880 J. W. Urquhart Electr. Light 279 A 2,000-candle light. 1880 J. W. Urquhart Electr. Light 282 A hundred-candle Sugg gas-burner. 1883 Harper's Mag. Feb. 482/1 One hour's light of two-thousand candle-power. 1917 Trans. Illum. Engin. Soc. 12 440 Candle, the unit of luminous intensity maintained by the national laboratories of France, Great Britain and the United States... This unit, which is used also by many other countries, has..been referred to as the international candle. 1937 Com. Internat. Poids & Mesures XVIII. 216 L'adoption d'une nouvelle définition de l'unité d'intensité lumineuse... Le Comité se rallie á la proposition d'appeler ‘bougie nouvelle’ l'unité qui vient d'être définie.] 1938 Light & Lighting XXXI. 186/1 The initiation of the new international candle, based upon..a primary standard of light (one-sixtieth of the luminous intensity of one square centimetre of a black body maintained at the temperature of solidification of platinum)... Laboratories are preparing groups of lamps to be measured in terms of the new candle, which is to come into operation in 1940. < as lemmas |
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