Alignment of off-axis conic aspheric mirrors in stigmatic null test

作者：Chen Qinfang^*; Li Yingcai; Ma Zhen; Li Xuyang; Liang Shitong

来源：Acta Optica Sinica, 2011, 31(2): 0222001.

DOI：10.3788/AOS201131.0222001

• Alignment error
• Aspheric mirrors
• Aspheric testing
• Error separation
• Interferometric testing
• Key factors
• Mathematic model
• Null test
• Off-axis
• Off-axis aspheric
• Optical fabrication
• Surface information
• Test efficiency
• Test pieces
• Test results
• Wavefront aberrations

During interferometric testing, an accurate evaluation of the surface information is one of the key factors in realizing deterministic manufacturing of off-axis aspheric mirrors. The method used in the analysis of wavefront aberration due to centring error in optical system is valid for test piece misalignment in an interferometric setting as well. The mathematic model of error separation is developed. In experiment, the test result of an off-axis aspheric mirror after alignment is 0.037 λ(RMS, λ=0.6328 mu;m), the test efficiency is improved effectively.

• 出版日期2011
• 单位中国科学院大学