Design of apochromatic telescope without anomalous dispersion glasses |
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| Authors: | Qinghua Yang Baochang Zhao Renkui Zhou |
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| Affiliation: | [1]Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119; [2]Graduate University of Chinese Academy of Sciences, Beijing 100039 |
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| Abstract: | A novel lens 8vstem with correction of secondary spectrum without using anomalous glasses is presented.The lens system comprises four separated lens components,with three of them being subapertures.Two examples of apochromatic telescope are presented,both with the use of typical normal glasses,namely crown K9 and flint F5 glasses,and low-cost slightly anomalous dispersion glasses.Secondary spectrum and other chromatic aberrations of the two design examples are corrected. |
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| Keywords: | glasses anomalous dispersion telescope design corrected crown typical normal examples system four separated components novel lens correction secondary spectrum |
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