[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 kvs^*X''Ep  
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High-precision prisms, having maximum angle tolerances q@;WXHO0  
of 1 to 3 arcsec, find increasing application in optical metrology. ^7v}wpwX\  
Reported interferometric techniques for measuring lZCvH1&"  
the wedge angles of such prisms achieve a precision of up \{J gjd  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques i'J.c4  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric Ixm<wKwW#  
methods have made use of goniometers,2 Sr~zN:wn  
spectrometers,3 master prisms,4,5 and collimators.6 However, CYrVP%xRA  
in the literature there are few reported methods for i_ws*7B<  
measuring the pyramidal error, and the majority rely on zR h1  
visual observation,2,7,8 by which it is only possible to measure [P)'LY6F  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. eKn&`\j6  
In the new arrangement presented here, one can measure bTZ/$7pp9  
the prism angle and the pyramidal error separately or in I_.(&hMn  
combination. This is possible because the measurements E&V"z^qs_  
are made simultaneously but with different techniques.