Multiple-input fiber optic imaging system

Carlton S. Faller Jr.; Mark W. Ehrhardt; Stanley E. Monroe Jr.; Richard D. Juday

doi:10.1117/12.156577

15 September 1993 Multiple-input fiber optic imaging system

Carlton S. Faller Jr., Mark W. Ehrhardt, Stanley E. Monroe Jr., Richard D. Juday

Proceedings Volume 1953, Photonics for Space Environments; (1993) https://doi.org/10.1117/12.156577
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Fiber optic imaging bundles have been used for a number of years in medical and industrial remote sensing applications. Several NASA applications (such as Orbiter payload alignment for berthing/unberthing operations and Space Station Freedom construction) requiring multiple views have been identified. This paper reports on some of the proposed systems and on an optical switch which can connect any one of multiple imaging bundles to a single camera. The switch uses a rotating offset prism and collimated optics to relay the image to the camera. The offset prism merely displaces the image without dispersing, thereby acting as a periscope. By operating the prism in collimated light any one of several imaging bundles can be selected with negligible sensitivity to rotational precision. Located in the Orbiter payload bay, the input view would be selected by driving motors to rotate the prism. The same motors, used in a feedback mode, would be used to `stop-down' the input optics. Detailed mechanical and optical designs are presented as well as results from developmental studies.

Citation Download Citation

Carlton S. Faller Jr., Mark W. Ehrhardt, Stanley E. Monroe Jr., and Richard D. Juday "Multiple-input fiber optic imaging system", Proc. SPIE 1953, Photonics for Space Environments, (15 September 1993); https://doi.org/10.1117/12.156577

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