[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 uqZLlP#&#  
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High-precision prisms, having maximum angle tolerances /#$bb4  
of 1 to 3 arcsec, find increasing application in optical metrology. vnz.81OR  
Reported interferometric techniques for measuring eEJ8j_G  
the wedge angles of such prisms achieve a precision of up SPsq][5eR  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques .]ZM2  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric &RXd1>|c2  
methods have made use of goniometers,2 ZP?k|sEH  
spectrometers,3 master prisms,4,5 and collimators.6 However, 9G_=)8sOV  
in the literature there are few reported methods for 1L'[DKb'  
measuring the pyramidal error, and the majority rely on oO @6c%  
visual observation,2,7,8 by which it is only possible to measure ?OKm~ Ek  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. S^)r,cC  
In the new arrangement presented here, one can measure )F? 57eh  
the prism angle and the pyramidal error separately or in H'I|tPs  
combination. This is possible because the measurements s~/]nz]"J  
are made simultaneously but with different techniques.