[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 4m0^ N  
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High-precision prisms, having maximum angle tolerances `dvg5qQ  
of 1 to 3 arcsec, find increasing application in optical metrology. ,';|CGI cP  
Reported interferometric techniques for measuring P{o)Ir8Tt  
the wedge angles of such prisms achieve a precision of up K0gQr.J53  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques ^FLs_=E  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric 2{=]Pf  
methods have made use of goniometers,2 Bv<gVt  
spectrometers,3 master prisms,4,5 and collimators.6 However, L8`v  
in the literature there are few reported methods for 0ID9=:J  
measuring the pyramidal error, and the majority rely on =~;~hZj  
visual observation,2,7,8 by which it is only possible to measure 0/GBs~P  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 1B;2 ~2X  
In the new arrangement presented here, one can measure eh9?GUr5  
the prism angle and the pyramidal error separately or in ^\}qq>_  
combination. This is possible because the measurements *`H*@2  
are made simultaneously but with different techniques.