Thermal design of retroreflective stray light fore-baffles for spaceborne optical systems

Edward Schneider

doi:10.1117/12.417355

6 March 2001 Thermal design of retroreflective stray light fore-baffles for spaceborne optical systems

Edward Schneider

Proceedings Volume 4198, Optomechanical Engineering 2000; (2001) https://doi.org/10.1117/12.417355
Event: Intelligent Systems and Smart Manufacturing, 2000, Boston, MA, United States

Abstract

The use of stray light fore-baffles in space-borne optical systems solves the problem of protecting the optical system from unwanted radiation. However, this introduces the problem of adding a large area black cavity at the system entrance aperture, and this cavity will run hot due to capture of solar, planetary albedo, and planetary emission radiation. The optical system may need to be baffled by a cool shield to keep system absolute temperatures sufficiently low. Alternately, a reflecting baffle system can be used that retro-reflects the input environment radiation. This reduces absorbed heat loads by the baffle system and reduces system absolute temperature levels.

Citation Download Citation

Edward Schneider "Thermal design of retroreflective stray light fore-baffles for spaceborne optical systems", Proc. SPIE 4198, Optomechanical Engineering 2000, (6 March 2001); https://doi.org/10.1117/12.417355

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