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单词 aperture stop
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aperture 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.
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更新时间:2024/12/23 0:47:49