[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 aAd1[?&  
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High-precision prisms, having maximum angle tolerances p? VDBAx  
of 1 to 3 arcsec, find increasing application in optical metrology. 0Nk!.gY  
Reported interferometric techniques for measuring !iX/Ni:  
the wedge angles of such prisms achieve a precision of up g38MF  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques 6I_4{  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric D#Mz#\
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methods have made use of goniometers,2 gCL}Ba  
spectrometers,3 master prisms,4,5 and collimators.6 However, U: <  
in the literature there are few reported methods for .UN?Ak*R  
measuring the pyramidal error, and the majority rely on ofYZ!-V  
visual observation,2,7,8 by which it is only possible to measure 'c/8|9jX  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. gHXvmR"  
In the new arrangement presented here, one can measure BOdlz#&s  
the prism angle and the pyramidal error separately or in 1Z(9<M1!M  
combination. This is possible because the measurements cs:?Wq ^  
are made simultaneously but with different techniques.