| 单词 | barrel distortion |
| 释义 | > as lemmasbarrel distortion barrel distortion n. Optics (see quot. 1953). ΘΚΠ the world > physical sensation > sight and vision > thing seen > optical illusion > [noun] > an optical illusion > optical distortions refraction1698 suppression1702 aerial perspective1704 irradiation1834 double image1880 barrel distortion1889 pincushion distortion1892 Poggendorff illusion1898 Ponzo illusion1942 pincushioning1947 space myopia1962 pincushion1968 Müller-Lyer1972 1889 Internat. Ann. Anthonys Photogr. Bull. 38 When the ordinary view lens, giving barrel distortion, is used. 1903 C. Beck & H. Andrews Photogr. Lenses iii. 73 These two types of distortion found in single lenses are known as ‘barrel’ and ‘pin-cushion’ distortion. 1929 G. H. Gliddon Opt. Replica Human Eye 21 At 20 degrees a trace of barrel distortion developed. 1937 A. T. Witts Television Cycl. 16 Barrel Distortion, the type of distortion produced by defective optical systems that causes a square image to have rounded (convex) sides, similar to the form of a barrel. 1953 S. W. Amos & D. C. Birkinshaw Television Engin. I. ix. 187 When distortion is present, the image of a rectangular object has sides which curve inwards (pincushion distortion) or outwards (barrel distortion), depending whether the magnification increases or decreases with distance from the centre of the image field. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。