[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 _1E c54D  
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High-precision prisms, having maximum angle tolerances ^ 34Ng  
of 1 to 3 arcsec, find increasing application in optical metrology. dlfjx  
Reported interferometric techniques for measuring B,%6sa~I  
the wedge angles of such prisms achieve a precision of up &2u |7U.  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques J@/4CSCR]  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric <J+Oh\8tad  
methods have made use of goniometers,2 ~_JfI7={Jn  
spectrometers,3 master prisms,4,5 and collimators.6 However, ")MHP~ ?  
in the literature there are few reported methods for t'eu>a1D  
measuring the pyramidal error, and the majority rely on w>f.@luO4  
visual observation,2,7,8 by which it is only possible to measure ;&J>a8B$  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. ,V 52Fj  
In the new arrangement presented here, one can measure N}U+K  
the prism angle and the pyramidal error separately or in VC/n}7p  
combination. This is possible because the measurements GYQ:G=  
are made simultaneously but with different techniques.