[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 HxMsH5;  
r9Z/y*q  
High-precision prisms, having maximum angle tolerances XJzXxhk2  
of 1 to 3 arcsec, find increasing application in optical metrology. 0c5_L6_z  
Reported interferometric techniques for measuring \$C4H  
the wedge angles of such prisms achieve a precision of up .HBvs=i  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques RrHnDO'  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric 'mcJ/9)v  
methods have made use of goniometers,2 1pb;A;F,A  
spectrometers,3 master prisms,4,5 and collimators.6 However, S2R[vB4).  
in the literature there are few reported methods for CP#79
=1  
measuring the pyramidal error, and the majority rely on rxK0<pWJhx  
visual observation,2,7,8 by which it is only possible to measure 9^ r  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. *jK))|%  
In the new arrangement presented here, one can measure >>$|,Q-.  
the prism angle and the pyramidal error separately or in QP B"EW  
combination. This is possible because the measurements $P(nh'\  
are made simultaneously but with different techniques.