Measuring the angles and pyramidal error of high-precision prisms 3Jk[/.h  
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High-precision prisms, having maximum angle tolerances )2xE z  
of 1 to 3 arcsec, find increasing application in optical metrology. GL1'Zo
 
Reported interferometric techniques for measuring kw*)/$5]  
the wedge angles of such prisms achieve a precision of up P?kx  
to 0.1 arcsec ~Ref. 1!, while noninterferometric techniques &5?G-mn  
have a precision of up to 2 arcsec ~Ref. 2!. Reported noninterferometric AXs=1 e  
methods have made use of goniometers,2 >R!"P[*  
spectrometers,3 master prisms,4,5 and collimators.6 However, 3UdU"d[75  
in the literature there are few reported methods for Q]@c&*