[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 ap;UxWq
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High-precision prisms, having maximum angle tolerances +;;fw |/  
of 1 to 3 arcsec, find increasing application in optical metrology. c1:op@t  
Reported interferometric techniques for measuring Y|B/(  
the wedge angles of such prisms achieve a precision of up T<!`~#kM  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques _f34p:B%s  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric n,Ux>L  
methods have made use of goniometers,2 ?0_i{BvN  
spectrometers,3 master prisms,4,5 and collimators.6 However, = b)q.2'#  
in the literature there are few reported methods for SB \ptF  
measuring the pyramidal error, and the majority rely on xR1g  
visual observation,2,7,8 by which it is only possible to measure 8,kbGlSD  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. aG=Y 6j G  
In the new arrangement presented here, one can measure (G$m}ng  
the prism angle and the pyramidal error separately or in SAo"+%  
combination. This is possible because the measurements K90Zf  
are made simultaneously but with different techniques.