[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 ,)mqd2)+"  
*_d+cG  
High-precision prisms, having maximum angle tolerances kR%bdN  
of 1 to 3 arcsec, find increasing application in optical metrology. )&di c6r  
Reported interferometric techniques for measuring wH1E7LY|R  
the wedge angles of such prisms achieve a precision of up %Kd&A*  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques dzDh
 V{  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric i:`ur  
methods have made use of goniometers,2 lcgT9m#  
spectrometers,3 master prisms,4,5 and collimators.6 However, MdK!Y  
in the literature there are few reported methods for .+3= H@8h  
measuring the pyramidal error, and the majority rely on GSg|Gz""J0  
visual observation,2,7,8 by which it is only possible to measure Z qX U  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. FUzIuz 6  
In the new arrangement presented here, one can measure wsp&U .z  
the prism angle and the pyramidal error separately or in v{Cts3?Br  
combination. This is possible because the measurements >E^?<}E~.  
are made simultaneously but with different techniques.