[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 85:=4N%  
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High-precision prisms, having maximum angle tolerances _Xc8Yg }`  
of 1 to 3 arcsec, find increasing application in optical metrology. L-WT]&n_  
Reported interferometric techniques for measuring OJuG~euy  
the wedge angles of such prisms achieve a precision of up KNvZm;Q6  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques Uw. `7b>B  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric O7m(o:t x3  
methods have made use of goniometers,2 U0y%u  
spectrometers,3 master prisms,4,5 and collimators.6 However, rdP[<Y9  
in the literature there are few reported methods for 36Zf^cFJ  
measuring the pyramidal error, and the majority rely on E)5\i-n  
visual observation,2,7,8 by which it is only possible to measure H9`)BbR  
pyramidal errors to the order of 1 arcmin ~Ref. 8!. FEz-+X<q2  
In the new arrangement presented here, one can measure N=5a54!/  
the prism angle and the pyramidal error separately or in ]?kZni8j_  
combination. This is possible because the measurements JV^=v@Z3  
are made simultaneously but with different techniques.