[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 5 7t.Ud  

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High-precision prisms, having maximum angle tolerances lux g1>  
of 1 to 3 arcsec, find increasing application in optical metrology. o5 fV,BJZO  
Reported interferometric techniques for measuring vq^';<Wh.  
the wedge angles of such prisms achieve a precision of up j6Sg~nRh  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques R y#
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have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric _@!vF,Wcf  
methods have made use of goniometers,2 N0-J=2  
spectrometers,3 master prisms,4,5 and collimators.6 However, -{ 1P`&G  
in the literature there are few reported methods for @ci..::5  
measuring the pyramidal error, and the majority rely on fn=A_ i  
visual observation,2,7,8 by which it is only possible to measure e\cyiW0  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. ruvfp_:  
In the new arrangement presented here, one can measure ]W1
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the prism angle and the pyramidal error separately or in N`,\1hHMT  
combination. This is possible because the measurements `G/g/>y  
are made simultaneously but with different techniques.