Design of CASSEGRAIN telescope baffles with honeycomb entrance |
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Authors: | Xiaodong Hu Weike Wang qiang Hu Xing Lei Qing Wei Yuanzheng Liu Jiliang Wang |
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Institution: | The Flight Automatic Control Research Institute of AVIC, Xi'an 710065, China |
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Abstract: | The stray radiation suppression in Cassegrain family optical system is presented. The design method for ultra-short outer baffle with honeycomb structure is proposed. Meanwhile the constraint formulas for designing the geometries of primary baffle and secondary baffle are deduced when basing the characteristic and taking vignette into account. According to the ray trace simulated data, the point source transmittance values of the baffle are less than 10-10when incident angles are larger than the rejection angle. The honeycomb-look front baffle guarantees a comparable performance of stray light suppression with traditional tube baffle, while reducing the size greatly. |
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Keywords: | 290 2648 350 4600 080 2720 |
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