[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 p*K #s1  

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High-precision prisms, having maximum angle tolerances PE.UNo>o  
of 1 to 3 arcsec, find increasing application in optical metrology. @l3&vt2=J  
Reported interferometric techniques for measuring e@c8Ce|0  
the wedge angles of such prisms achieve a precision of up !- [ZQ  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques ^/%o I;O{  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric ]prw=rD  
methods have made use of goniometers,2 xM{[~Kh_x  
spectrometers,3 master prisms,4,5 and collimators.6 However, eP (*.  
in the literature there are few reported methods for aP(~l_  
measuring the pyramidal error, and the majority rely on >'n[B   
visual observation,2,7,8 by which it is only possible to measure -qpvV
LR,  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 2V8"jc  
In the new arrangement presented here, one can measure qo:Zc`t(R  
the prism angle and the pyramidal error separately or in M*'8$|Z  
combination. This is possible because the measurements Dhm;K$T  
are made simultaneously but with different techniques.