[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 9X
eg&Z|!  
.u&GbM%Ga  
High-precision prisms, having maximum angle tolerances 2[Vs@X  
of 1 to 3 arcsec, find increasing application in optical metrology. (
-esUOB.  
Reported interferometric techniques for measuring }XIUz|  
the wedge angles of such prisms achieve a precision of up 8eZ^)9m  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques p$zj2W+sN  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric `Y.Q{5Y  
methods have made use of goniometers,2 (xlAS  
spectrometers,3 master prisms,4,5 and collimators.6 However, P|kfPohI=  
in the literature there are few reported methods for 7N I~47s|v  
measuring the pyramidal error, and the majority rely on kc}&\y  
visual observation,2,7,8 by which it is only possible to measure -`}
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pyramidal errors to the order of 1 arcmin ~Ref. 8!. A#8Dv&$Pr  
In the new arrangement presented here, one can measure +oRwXO3W  
the prism angle and the pyramidal error separately or in e$=0.GWT  
combination. This is possible because the measurements 7&{[Y^R]"  
are made simultaneously but with different techniques.