[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 d)o!
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High-precision prisms, having maximum angle tolerances ,Tagj`@bHc  
of 1 to 3 arcsec, find increasing application in optical metrology. <+j)P4O4  
Reported interferometric techniques for measuring {:nQl}  
the wedge angles of such prisms achieve a precision of up -Ng'<7  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques U:6W+p8  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric @wmi5oExc  
methods have made use of goniometers,2 zLw{ {|  
spectrometers,3 master prisms,4,5 and collimators.6 However, QYb33pN|  
in the literature there are few reported methods for F|bYWYED;  
measuring the pyramidal error, and the majority rely on /c2'dJ(H  
visual observation,2,7,8 by which it is only possible to measure )D-c]+yt  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. ?']h%'Q  
In the new arrangement presented here, one can measure '|>9C^E9X  
the prism angle and the pyramidal error separately or in N/QiI.V6  
combination. This is possible because the measurements CI:^\-z  
are made simultaneously but with different techniques.