[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 (N7O+3+G  
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High-precision prisms, having maximum angle tolerances 8+&gp$a$  
of 1 to 3 arcsec, find increasing application in optical metrology. loLKm]yV  
Reported interferometric techniques for measuring x+K gc[r  
the wedge angles of such prisms achieve a precision of up .ByU  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques f'i6QMk\&  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric N70zjy4?fL  
methods have made use of goniometers,2 y^SyhG,V[  
spectrometers,3 master prisms,4,5 and collimators.6 However, (ZS/@He  
in the literature there are few reported methods for 3hLqAj  
measuring the pyramidal error, and the majority rely on ;KL9oV!<f  
visual observation,2,7,8 by which it is only possible to measure !M,h79NM  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 2p+C%"n>  
In the new arrangement presented here, one can measure Et.j1M|g  
the prism angle and the pyramidal error separately or in !8o\.uyi  
combination. This is possible because the measurements dok)Je  
are made simultaneously but with different techniques.