[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 Y6|8;2E  
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High-precision prisms, having maximum angle tolerances qc*z`Wz:  
of 1 to 3 arcsec, find increasing application in optical metrology. uqhNi!;  
Reported interferometric techniques for measuring -NG`mfu  
the wedge angles of such prisms achieve a precision of up Lh%>> Ht{  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques F+Qp mVU  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric PD$gW`V  
methods have made use of goniometers,2 !,mv 7Yj  
spectrometers,3 master prisms,4,5 and collimators.6 However, `YDe<@6'  
in the literature there are few reported methods for o;+J3\  
measuring the pyramidal error, and the majority rely on @ (UacFO  
visual observation,2,7,8 by which it is only possible to measure `&.]>H)N*  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. cG|ihG5)  
In the new arrangement presented here, one can measure ,FvBZ.4c3=  
the prism angle and the pyramidal error separately or in !N4?>[E  
combination. This is possible because the measurements A6APU><dm^  
are made simultaneously but with different techniques.