[论文]Measuring the angles and pyramidal error of high-precision prisms [复制链接]

Measuring the angles and pyramidal error of high-precision prisms QE{;M  
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High-precision prisms, having maximum angle tolerances S\{^LVXTMd  
of 1 to 3 arcsec, find increasing application in optical metrology. jN'fm  
Reported interferometric techniques for measuring e2Kpx8kWj  
the wedge angles of such prisms achieve a precision of up thZ@BrO#  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques {KpH|

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have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric Vf,~MG  
methods have made use of goniometers,2 hiK[!9r  
spectrometers,3 master prisms,4,5 and collimators.6 However, GHgEbiY:  
in the literature there are few reported methods for xn x1`|1u  
measuring the pyramidal error, and the majority rely on 1A/c/iC  
visual observation,2,7,8 by which it is only possible to measure YL&b9e4  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. .5[LQR  
In the new arrangement presented here, one can measure /Y\E68_Fh  
the prism angle and the pyramidal error separately or in sWZtbW;)  
combination. This is possible because the measurements <*(UvOQuX  
are made simultaneously but with different techniques.