[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 v=0G&x=/  
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High-precision prisms, having maximum angle tolerances Qni`k)4  
of 1 to 3 arcsec, find increasing application in optical metrology. Up'#OkTx  
Reported interferometric techniques for measuring
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the wedge angles of such prisms achieve a precision of up S\<i`q  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques 3NDddrL9  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric jBOl:l,+  
methods have made use of goniometers,2 (.V),NKG  
spectrometers,3 master prisms,4,5 and collimators.6 However, jVQ89vf ~  
in the literature there are few reported methods for Iia.`"S  
measuring the pyramidal error, and the majority rely on X!^|Tass  
visual observation,2,7,8 by which it is only possible to measure UO@K:n  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. J-,ocO  
In the new arrangement presented here, one can measure 0kOwA%m  
the prism angle and the pyramidal error separately or in ,!^5w,P:   
combination. This is possible because the measurements xlu4  
are made simultaneously but with different techniques.