[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 7&w[h4Lw  
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High-precision prisms, having maximum angle tolerances myd:"u,}9  
of 1 to 3 arcsec, find increasing application in optical metrology. tbfwgK
 
Reported interferometric techniques for measuring S0LaQ<9.  
the wedge angles of such prisms achieve a precision of up m& D#5C  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques sWKdqs  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric I SdB5Va  
methods have made use of goniometers,2 +=nWB=iCb  
spectrometers,3 master prisms,4,5 and collimators.6 However, ,,Ivey!kL  
in the literature there are few reported methods for m,}GP^<1i  
measuring the pyramidal error, and the majority rely on u%=2g'+)_  
visual observation,2,7,8 by which it is only possible to measure Qv]rj]%  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. KYl!Iw67d  
In the new arrangement presented here, one can measure ~8-xj6^  
the prism angle and the pyramidal error separately or in glBS|b$\:  
combination. This is possible because the measurements GNHWbC6_m  
are made simultaneously but with different techniques.