刻苦读书
发表于 2025-3-26 21:27:42
Schmidt Correctors and Diffraction Gratings Aspherized by Active Optics,ure of these methods is the inherent . of the aspherized surface that is obtained directly from spherical or plane surfaces. This avoids the high spatial frequency errors which are a signature of the classical zonal retouch process. Active optics methods allow obtaining telescopes and astronomical instruments of the highest . image quality.
scrape
发表于 2025-3-27 04:38:03
Marlen Niederberger,Emily Finne)..The next problems for the primary mirror of large telescopes were to minimize their elastic deflection under . – or . – and also that resulting from . gradients. This latter problem was appropriately solved by the inventions and developments of low expansion materials such as Pyrex, Sitall, fused silica, vitrocerams, and silicon carbide.
Cocker
发表于 2025-3-27 07:53:38
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Tartar
发表于 2025-3-27 09:40:03
https://doi.org/10.1007/978-3-662-66673-9replaced by an on-axis refractive element. Kellner who patented in 1910 several designs using a corrector lens, locates the plate in a wrong position for wide-field compensations. Schmidt placed the aspherical plate at the mirror center of curvature and emphasized the importance of this locatio
金盘是高原
发表于 2025-3-27 16:47:22
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Analogy
发表于 2025-3-27 20:29:54
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prediabetes
发表于 2025-3-27 23:31:36
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Synthesize
发表于 2025-3-28 05:47:26
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控诉
发表于 2025-3-28 08:31:29
Active Optics with Multimode Deformable Mirrors (MDM) Vase and Meniscus Forms,
beta-carotene
发表于 2025-3-28 11:12:47
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