[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 nrCr9#  
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High-precision prisms, having maximum angle tolerances Z1oUAzpj4  
of 1 to 3 arcsec, find increasing application in optical metrology. 8J8@0  
Reported interferometric techniques for measuring =Y-mc#{8  
the wedge angles of such prisms achieve a precision of up jU=n\o=?  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques 1D)=q^\I  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric nmUMg  
methods have made use of goniometers,2 QP!0I01  
spectrometers,3 master prisms,4,5 and collimators.6 However, ,\D*=5  
in the literature there are few reported methods for pFwhvw  
measuring the pyramidal error, and the majority rely on SsQg8d  
visual observation,2,7,8 by which it is only possible to measure "%K[kA6  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 4_h?E:sBb  
In the new arrangement presented here, one can measure `r*bG=  
the prism angle and the pyramidal error separately or in "[\),7&03  
combination. This is possible because the measurements OLyl.#J  
are made simultaneously but with different techniques.