[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 kyf(V)APPu  
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High-precision prisms, having maximum angle tolerances Ckhwd  
of 1 to 3 arcsec, find increasing application in optical metrology. O&Y22mu  
Reported interferometric techniques for measuring 69 J4p=c,  
the wedge angles of such prisms achieve a precision of up C'PHbo:  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques b?/Su<q  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric v}=pxWhm  
methods have made use of goniometers,2 Ym#io]  
spectrometers,3 master prisms,4,5 and collimators.6 However, *, R ~[g  
in the literature there are few reported methods for _ucixM#  
measuring the pyramidal error, and the majority rely on OI:T#uk5  
visual observation,2,7,8 by which it is only possible to measure ,=2)1I]  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. hVdGxT]6  
In the new arrangement presented here, one can measure 4'.]-u  
the prism angle and the pyramidal error separately or in jX,A.  
combination. This is possible because the measurements MfraTUxIo/  
are made simultaneously but with different techniques.