Measuring the angles and pyramidal error of high-precision prisms

Alberto Jaramillo-Nunez; Carlos I. Robledo-Sanchez

doi:10.1117/1.601516

1 October 1997 Measuring the angles and pyramidal error of high-precision prisms

Alberto Jaramillo-Nunez, Carlos I. Robledo-Sanchez

Optical Engineering, Vol. 36, Issue 10, (October 1997). https://doi.org/10.1117/1.601516

The use of a Twyman-Green interferometer to measure the wedge angles and pyramidal error of high-precision optical prisms is described. The method allows these parameters to be determined independently or in combination. Prism angles are measured with the aid of a reference flat attached to a goniometer mounting. The pyramidal error is obtained by measuring the period of interferogram fringe pattern. Prism angles up to 25 deg have been measured with a standard deviation of 3 arcsec.

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Alberto Jaramillo-Nunez and Carlos I. Robledo-Sanchez "Measuring the angles and pyramidal error of high-precision prisms," Optical Engineering 36(10), (1 October 1997). https://doi.org/10.1117/1.601516

Published: 1 October 1997

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