[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 "&
1h<>  
R![4|
FR  
High-precision prisms, having maximum angle tolerances 8 J;\Z  
of 1 to 3 arcsec, find increasing application in optical metrology. qt4^e7o  
Reported interferometric techniques for measuring K)9+3(?  
the wedge angles of such prisms achieve a precision of up 7q'T,'[  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques vJ0Zv> n-  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric L~e{Vv8UR  
methods have made use of goniometers,2 Fps:6~gD  
spectrometers,3 master prisms,4,5 and collimators.6 However, FP9FE `x  
in the literature there are few reported methods for XcM.<Dn3  
measuring the pyramidal error, and the majority rely on ::2(pgH  
visual observation,2,7,8 by which it is only possible to measure >PONu]^  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. |oV_7%mlu  
In the new arrangement presented here, one can measure $gysy!2}.  
the prism angle and the pyramidal error separately or in #w&N) c>  
combination. This is possible because the measurements =
JfSg'7  
are made simultaneously but with different techniques.