Alignment Of Large Aperture Optical Systems Using A Bi-Directional Telescope And A Variable Offset Periscope

Donald G. Carson; David M. Swain; Robert A. Field

doi:10.1117/12.959450

31 December 1980 Alignment Of Large Aperture Optical Systems Using A Bi-Directional Telescope And A Variable Offset Periscope

Donald G. Carson, David M. Swain, Robert A. Field

Author Affiliations +

Proceedings Volume 0251, Optical Alignment I; (1980) https://doi.org/10.1117/12.959450
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

Two instruments have been developed, the Bi-Directional Telescope (BDT) and the Variable Offset Periscope, that will aid the alignment of large aperture, long pathlength optical systems. The BDT has been designed to view two ends of a complex long pathlength optical system along a common optical axis. The BDT provides a beam whose maximum offset between beams approaches .001" and maximum angular misalipment approaches 6.0 microradians. The other instrument, the Variable Offset Periscope, has been developed to align multiple mirror or annular optical systems to a com-mon axis, where the optical axis is obscured. The periscope is capable of offsetting a beam over most of a 23.0" diameter aperture with an angular error of less than 2.0 microradians between input and output beams.

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Donald G. Carson, David M. Swain, and Robert A. Field "Alignment Of Large Aperture Optical Systems Using A Bi-Directional Telescope And A Variable Offset Periscope", Proc. SPIE 0251, Optical Alignment I, (31 December 1980); https://doi.org/10.1117/12.959450

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