| 单词 | aperture stop |
| 释义 | > as lemmasaperture stop aperture stop n. Optics a stop (stop n.2 12) that restricts the amount of light entering a lens system; a diaphragm with a circular hole that acts in this way. ΚΠ 1856 Orr's Circle Sci.: Pract. Chem 129 In dull weather, and in copying objects indifferently illuminated, the largest size aperture stop is used. 1972 C. S. Williams & O. A. Becklund Optics viii. 188 An aperture stop located between a positive lens and the image increases pincushion distortion. 2010 R. Kingslake & R. B. Johnson Lens Design Fund. (ed. 2) xv. 465 The aperture stop of the system is located at the primary mirror. < as lemmas |
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