[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 nY $tp  
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High-precision prisms, having maximum angle tolerances Q:6VYONN  
of 1 to 3 arcsec, find increasing application in optical metrology. eo^/c+FG  
Reported interferometric techniques for measuring TCvSc\Q[:1  
the wedge angles of such prisms achieve a precision of up /XS&d%y  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques &Np9kIMCB  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric
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methods have made use of goniometers,2 woq)\;CK  
spectrometers,3 master prisms,4,5 and collimators.6 However, YwH./)r=  
in the literature there are few reported methods for c<+;4z  
measuring the pyramidal error, and the majority rely on 8&V_$+U  
visual observation,2,7,8 by which it is only possible to measure H(Ms^8Vs~:  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. TOLl@p]lU  
In the new arrangement presented here, one can measure VhEMk\  
the prism angle and the pyramidal error separately or in Mp\<cE  
combination. This is possible because the measurements T@^]i&  
are made simultaneously but with different techniques.