[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 ;?-AFd\i
 
yBIlwN`kB  
High-precision prisms, having maximum angle tolerances u2V-V#jS  
of 1 to 3 arcsec, find increasing application in optical metrology. 9(CvGzco<  
Reported interferometric techniques for measuring kIrrbD  
the wedge angles of such prisms achieve a precision of up g*|j+<:7  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques 5Wt){rG0Z  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric f-=\qSo  
methods have made use of goniometers,2 m7 =$*1k  
spectrometers,3 master prisms,4,5 and collimators.6 However, IUcL*  
in the literature there are few reported methods for iHK~?qd}  
measuring the pyramidal error, and the majority rely on Nkdv'e\  
visual observation,2,7,8 by which it is only possible to measure CT|+?  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. e%4?-{(  
In the new arrangement presented here, one can measure fCl}eXg6w  
the prism angle and the pyramidal error separately or in )*|/5wW1  
combination. This is possible because the measurements Q=\ Oa(I  
are made simultaneously but with different techniques.