Wang Wei, Xu Min, Li Hongyu, Yu Guoyu. Polishing of large-aperture mirror and analysis of power spectral density[J]. Infrared and Laser Engineering, 2013, 42(4): 982-987.
| Citation:
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Wang Wei, Xu Min, Li Hongyu, Yu Guoyu. Polishing of large-aperture mirror and analysis of power spectral density[J]. Infrared and Laser Engineering, 2013, 42(4): 982-987.
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Polishing of large-aperture mirror and analysis of power spectral density
- 1.
Department of Optical Science and Engineering,Fudan University,Shanghai 200433,China;
- 2.
Shanghai Ultra-precision Optical Manufacturing Engineering Center,Fudan University,Shanghai 200433,China;
- 3.
Research Center for Space Optical Engineering,Harbin Institute of Technology,Harbin 150001,China;
- 4.
Optic Glyndwr,Ffordd William Morgan,St Asaph,LL17 0JD UK,China
- Received Date: 2012-08-10
- Rev Recd Date:
2012-09-15
- Publish Date:
2013-04-25
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Abstract
As the development of modern optical technology, especially space optical science, more high precision mirrors with large apertures are needed. But it is difficult to manufacture high precision large aperture optical components of multi-scale processing. The method of optical polishing using an ultra-precise bonnet was based upon the technology of computer controlled optical surfacing. A bonnet filled with air was applied as a precise polishing tool which was flexible and able to adapt itself well to the shape of the part, which was superior than other polishing methods. A material removing model of bonnet processed polishing was established according to kinematic principle based on the Preston equation. The model was modified in terms of Hertz contact theory using the physical characteristics of polishing bonnet tools. A satisfactory result was obtained for one of the surfaces of a wedge mirror with a diameter of 570 mm. The result of P-V and RMS parameters are 1/8 and 1/75 respectively. The PSD curves of the part and the noise of the narrow band are analyzed, as well as the reasons.
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References
|
[1]
|
Shore P, Cunningham C, Debra D, et al. Precision engineering for astronomy and gravity science[C]//CIRP Annals-Manufacturing Technology, 2010, 59(2): 694-710. |
|
[2]
|
|
|
[3]
|
|
|
[4]
|
|
|
[5]
|
|
|
[6]
|
Bajt S, Chapman H N, Spiller E, et al. Multilayers for next generation X-ray sources[C]//SPIE, 6586: 18-24. |
|
[7]
|
|
|
[8]
|
Bingham R G, Walker D D, Kim D-H, et al. A novel automated process for aspheric surfaces[C]//SPIE, 2000, 4093: 445-450. |
|
[9]
|
|
|
[10]
|
Walker D D, Beaucamp A, Brooks D, et al. Novel CNC polishing process for control of form and texture on aspheric surfaces[C]//SPIE, 2002, 4767: 99-106 |
|
[11]
|
Walker D D, Beaucamp A, Brooks D, et al. New results from the precessions polishing process scaled to larger sizes[C]//SPIE, 2004, 5494: 71-81. |
|
[12]
|
|
|
[13]
|
|
|
[14]
|
Walker D D, Beaucamp A, Doubrovski V, et al. Automated optical fabrication-first results from the new precessions 1.2 m CNC polishing machine[C]//SPIE, 2006, 6273: 91-98. |
|
[15]
|
Fan Quantang, Zhu Jianqiang, Zhang Bao'an. Effect of the geometry of workpiece on polishing velocity in free annular polishing[J]. Chin Opt Lett, 2007, 5(5): 298-300. |
|
[16]
|
|
|
[17]
|
|
|
[18]
|
Johnson K L. Contact Mechanics[M]. Beijing: Higher Education Press, 1992: 72-77. |
|
[19]
|
Li Hongyu, Zhang Wei, Yu Guoyu. Removing characteristics of ultraprecise bonnet polishing on spatial optics elements[J]. Acta Optica Sinica, 2009, 29(3): 811-817. |
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