[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 ]zU<=b@  
!>y}Xq{bm3  
High-precision prisms, having maximum angle tolerances )m8>w6"  
of 1 to 3 arcsec, find increasing application in optical metrology. yl<$yd0Zdu  
Reported interferometric techniques for measuring iT5SuIv  
the wedge angles of such prisms achieve a precision of up a<'$`z|s  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques Zk#i9[g9*  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric bM^A9BxD  
methods have made use of goniometers,2 8.Ef5-m  
spectrometers,3 master prisms,4,5 and collimators.6 However, HoE
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in the literature there are few reported methods for kQd[E-b7  
measuring the pyramidal error, and the majority rely on &NjZD4m`=  
visual observation,2,7,8 by which it is only possible to measure 8ex:OTzn|  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. *rz(}(r  
In the new arrangement presented here, one can measure $lAb6e$n  
the prism angle and the pyramidal error separately or in \G=R hx f  
combination. This is possible because the measurements c9TAV,/fF*  
are made simultaneously but with different techniques.