| 单词 | refractive power |
| 释义 | > as lemmasrefractive power refractive power n. now chiefly Ophthalmology the relative ability of a substance, object, etc., to refract the light passing through it. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > refraction > [noun] > refractive power refraction1664 refractive power1665 power1738 refrangibility1774 1665 R. Hooke Micrographia 50 The greater or less refractive power of the pellucid body. 1771 Philos. Trans. 1770 (Royal Soc.) 60 131 The very great refractive power of the air in these parts. 1831 D. Brewster Treat. Optics iii. xxxi. 255 Great local heats or local colds will produce great changes of refractive power, and give rise to optical phenomena of a very interesting kind. 1964 S. Duke-Elder Parsons' Dis. Eye (ed. 14) v. 51 A lens with a focal length of half a metre will be twice as strong as one with a focal length of 1 metre: the refractive power of such a lens is therefore 2 dioptres. 2001 L. D. Bores Refractive Eye Surg. (ed. 2) v. 116/1 The refractive power of the cornea..depends on a number of factors, some of which are constant and some variable. < as lemmas |
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