| 单词 | refracting angle |
| 释义 | > as lemmasrefracting angle refracting angle n. the angle between two faces of a prism or lens. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > lens > [noun] > qualities of lenses power1673 refracting angle1676 resolution1831 depth of focus1852 astigmatism1859 aplanatism1869 apochromatism1887 covering power1895 coverage1936 asphericity1944 parfocality1955 1676 I. Newton in Philos. Trans. (Royal Soc.) 11 698 In my answer I did not prescribe the just quantity of the refracting Angle with which I would have the Experiment repeated. 1796 H. Brougham in Philos. Trans. (Royal Soc.) 86 262 An hollow prism made of fine plate-glass,..its refracting angle being 55°. 1890 W. E. Woodbury Encycl. Photogr. 394 A divergence from the axis will take place, becoming more and more marked as the refracting angles become greater towards the edge of the lens. 2003 B. Husch et al. Forest Mensuration (ed. 4) xiv. 340 The cruising prisms that foresters have used in horizontal point sampling generally have a refracting angle of less than 6°. < as lemmas |
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