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Non-achromatic objective : ウィキペディア英語版 | Non-achromatic objective A non-achromatic objective is an objective lens which is not corrected for chromatic aberration. In telescopes they can a be pre-18th century simple single element objective lenses which were used before the invention of doublet achromatic lenses. They can also be specialty monochromatic lenses used in modern research telescopes and other instruments. ==Non-achromatic telescope objectives==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Non-achromatic objective」の詳細全文を読む
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