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Title:
Some methods for the fabrication of large diameter off-axis paraboloids
Author: Li, DePei(李德培) ; Chen Xiaolian
Issued Date: 2010-10-13
Conference Date: 2010-4-26
Conference Place: Dalian, China
Keyword: off-axis parabolic surface ; the best fit sphere ; the greatest volume of non-sphere ; sagittal depth
Subject: 天文技术与方法::天文镜面(材料、加工、检测)
English Abstract:
Off-axis paraboloid is commonly used in optical systems and collimator, its greatest advantage is that no central shelter. Difficulties of manufacture depend on the processing precision of mirror, focal length, aperture size and off-axis. As an asymmetry surface, it is really a hard work to manufacture a surface with an amount of large off-axis, large- diameter, large volume of non-sphere. Here, some of the techniques such as “the way of cutting from master mirrors”, “the way of filling up with sub mirrors”, “the way of polishing sub mirrors directly”, “the way of stretch deformations with stress” are discussed. Finally, some manufactures and results of master mirrors with diameter from 500 millimeters to 2000 millimeters are reported.
Sponsorship: The International Society for Optical Engineering
Source: Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Publisher: SPIE
Content Type: 会议论文
URI: http://ir.niaot.ac.cn/handle/114a32/599
Appears in Collections:中科院南京天光所知识成果_会议论文

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Recommended Citation:
Li Depei,Chen Xiaolian. Some methods for the fabrication of large diameter off-axis paraboloids[C]. 见:. Dalian, China. 2010-4-26.
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