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Proceedings Paper

Alignment Of Large Aperture Optical Systems Using A Bi-Directional Telescope And A Variable Offset Periscope
Author(s): Donald G. Carson; David M. Swain; Robert A. Field
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Paper 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.

Paper Details

Date Published: 31 December 1980
PDF: 6 pages
Proc. SPIE 0251, Optical Alignment I, (31 December 1980); doi: 10.1117/12.959450
Show Author Affiliations
Donald G. Carson, Research and Development Associates (United States)
David M. Swain, Rockwell International (United States)
Robert A. Field, Rockwell International (United States)


Published in SPIE Proceedings Vol. 0251:
Optical Alignment I
Richard N. Shagam; William C. Sweatt, Editor(s)

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