[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 } 
R/  
^,5.vfES  
High-precision prisms, having maximum angle tolerances }Tef;8
d  
of 1 to 3 arcsec, find increasing application in optical metrology. 7A|jnm  
Reported interferometric techniques for measuring rN~`4mZ  
the wedge angles of such prisms achieve a precision of up -ur]k]R  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques ]xG4T>S  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric W*m[t&;  
methods have made use of goniometers,2 >dl!Ep  
spectrometers,3 master prisms,4,5 and collimators.6 However, K]oPh:E  
in the literature there are few reported methods for HlSuhbi'@  
measuring the pyramidal error, and the majority rely on Wd}mC<rv1  
visual observation,2,7,8 by which it is only possible to measure Z9D4;1  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. 8#Z5-",iw  
In the new arrangement presented here, one can measure 80EY7#r@w  
the prism angle and the pyramidal error separately or in dW`D?$(@,  
combination. This is possible because the measurements 0R]CI  
are made simultaneously but with different techniques.