[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 ,]:vk|a#;  
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High-precision prisms, having maximum angle tolerances 6[b?ckvi  
of 1 to 3 arcsec, find increasing application in optical metrology. `5HFRgL`.
 
Reported interferometric techniques for measuring $A4rdhvd  
the wedge angles of such prisms achieve a precision of up _oV;Y`_  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques "PFczoRZ  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric 5g x9W\a ?  
methods have made use of goniometers,2 PpxLMe]  
spectrometers,3 master prisms,4,5 and collimators.6 However, rLk
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in the literature there are few reported methods for S_Tv Ix/7&  
measuring the pyramidal error, and the majority rely on 9+z5$  
visual observation,2,7,8 by which it is only possible to measure >DFpL$oP  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 'zRi;:UHA  
In the new arrangement presented here, one can measure `.MY"g9  
the prism angle and the pyramidal error separately or in 9/8#e+L  
combination. This is possible because the measurements uTWij4)a  
are made simultaneously but with different techniques.