| 单词 | pincushion distortion |
| 释义 | > as lemmaspincushion distortion pincushion distortion n. a form of optical distortion in which straight lines along the edge of a screen, lens, etc., bulge towards the centre; cf. barrel distortion n. at barrel n. Compounds 2. 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 1886 J. H. Dallmeyer Choice & Use Photogr. Lenses 22 If the stop is placed at the same distance behind the lens..the result is the opposite kind, or ‘pincushion’-shaped distortion.] 1892 A. Brothers Photogr. i. iii. 48 The effect consists..in the curvature of the images of straight lines produced by marginal rays causing barrel-shaped or ‘pincushion distortion’. 1990 PIC July 74/4 I check for faults through the viewfinder. As I zoom, can I see barrel or pincushion distortion? < as lemmas |
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