[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 n#R!`*[  
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High-precision prisms, having maximum angle tolerances dvf*w:5K!  
of 1 to 3 arcsec, find increasing application in optical metrology. 4H:WpW*r  
Reported interferometric techniques for measuring AX
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the wedge angles of such prisms achieve a precision of up c2U>89LlZ  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques l%IOdco#  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric (/Mc
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methods have made use of goniometers,2 ;Cy@TzO/|  
spectrometers,3 master prisms,4,5 and collimators.6 However, t Z%?vY~!  
in the literature there are few reported methods for jL8zH  
measuring the pyramidal error, and the majority rely on 4j*}|@x  
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!. B?M+`;  
In the new arrangement presented here, one can measure eOb`uyi  
the prism angle and the pyramidal error separately or in Cr` 0C  
combination. This is possible because the measurements BAhC-;B#R  
are made simultaneously but with different techniques.