?測試配置說明： A telescope tested at the Cassegrain focus using external parallel light. The aberrations of the SH system itself are removed by taking a calibration frame, with a calibration source placed at the focus of Puntino. The incident light illuminating the system should be aberration free. In the case of an astronomical telescope, a natural star is used.
It is not necessary to use parallel light for the test. The measured aberrations will then no longer refer to those for parallel light, but to one particular optical configuration that is used for the test.
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?牛頓焦點 Newtonian focus?測試
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測試配置說明 A telescope tested at the Newtonian focus using parallel light. The aberrations of the SH system itself are removed by taking a calibration frame, with a calibration source placed at the focus of Puntino. The incident light illuminating the system should be aberration free. In the case of an astronomical telescope, a natural star is used.
It is not necessary to use parallel light for the test. The measured aberrations will then no longer refer to those for parallel light, but to one particular optical configuration that is used for the test.
通過使用Zygo GPI xp HR干涉儀和Spot-Optics公司的Optino 波前測試系統對一個硬盤上小面積(7mm)區域，進行測試對比。
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