[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 $v #  
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High-precision prisms, having maximum angle tolerances CAC%lp  
of 1 to 3 arcsec, find increasing application in optical metrology. 4\5i}MIS0  
Reported interferometric techniques for measuring Cf9{lhE8  
the wedge angles of such prisms achieve a precision of up PpKjjA<  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques Hi$R"O (  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric v0VQ4>  
methods have made use of goniometers,2 l5.k2{'  
spectrometers,3 master prisms,4,5 and collimators.6 However, c?e-2Dp(  
in the literature there are few reported methods for n~]"sTC}&  
measuring the pyramidal error, and the majority rely on g'b|[ q  
visual observation,2,7,8 by which it is only possible to measure /,\U*'-  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. tjt^R$[@  
In the new arrangement presented here, one can measure kmX9)TMVO  
the prism angle and the pyramidal error separately or in )obgEJ7Y`l  
combination. This is possible because the measurements &
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are made simultaneously but with different techniques.