[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 %x}&=zx0*1  
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High-precision prisms, having maximum angle tolerances [.j]V-61  
of 1 to 3 arcsec, find increasing application in optical metrology. 8pk#sJ51  
Reported interferometric techniques for measuring lH)em.#  
the wedge angles of such prisms achieve a precision of up
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to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques Q^lQi\[  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric x*h`VS(?6  
methods have made use of goniometers,2 _}zo /kDA  
spectrometers,3 master prisms,4,5 and collimators.6 However, UW hn1N  
in the literature there are few reported methods for hD6JW-  
measuring the pyramidal error, and the majority rely on c.(Ud`jc  
visual observation,2,7,8 by which it is only possible to measure >v1 y0zx  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 4@v1jJj  
In the new arrangement presented here, one can measure Jh$"fr3  
the prism angle and the pyramidal error separately or in j,=*WG  
combination. This is possible because the measurements X a"XB  
are made simultaneously but with different techniques.