achromatic lens
plural of Rothlisberger
Third-person singular simple present indicative form of patch
plural of gabardine
(optics) A lens generally composed of two separate lenses, one convex and one concave and generally of different materials, in such a way that the chromatic aberration produced by one is corrected by the other.
顕微鏡の色収差を補正したレンズは、凸のクラウンガラス素子と凹のフリントガラス素子を組み合わせて、より鮮明な像を得ていた。
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