[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 ;LcZ`1  
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High-precision prisms, having maximum angle tolerances A\4D79>x  
of 1 to 3 arcsec, find increasing application in optical metrology. 1eS&&J5  
Reported interferometric techniques for measuring 3{'Ne}5%I  
the wedge angles of such prisms achieve a precision of up >_[9t  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques 4!Fo$9  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric GeyvId03H  
methods have made use of goniometers,2 ]{3)^axW;  
spectrometers,3 master prisms,4,5 and collimators.6 However, }AB,8n`  
in the literature there are few reported methods for \UPjf]&  
measuring the pyramidal error, and the majority rely on nV"~-On  
visual observation,2,7,8 by which it is only possible to measure ns9U/:L  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. th  
In the new arrangement presented here, one can measure Q_"]+i]s@  
the prism angle and the pyramidal error separately or in uGwm r  
combination. This is possible because the measurements n&$j0k  
are made simultaneously but with different techniques.