Exact optics : V. Null tests for the mirrors of Schwarzschild's spectrograph camera
作者： R. V. Willstrop
DOI: 10.1111/J.1365-2966.2007.12396.X
关键词: Schwarzschild radius 、 Null (radio) 、 Spectrograph 、 Field of view 、 Focal length 、 Scale (ratio) 、 Edge (geometry) 、 Aperture 、 Optics 、 Physics
摘要: Null tests are described for the strongly curved and highly aspheric mirrors of a set ‘exact optics’ spectrograph cameras based on design Schwarzschild. For f/1.0 f/1.333 having focal length 100 mm each mirror well within Rayleigh limit would permit construction larger scale. The ray-theoretical image diameters at edge field view these two under 10 μm unless they scaled up to an aperture greater than 450 mm.
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