1 March 1970 Space Radiation Affects Glass Refractive Properties
One of the major considerations in designing cameras and television systems for use in outer space is the effect of the space environment on focus and picture geometry. Many navigation and guidance systems, such as star trackers, require a pointing accuracy not to exceed one second of arc. A change of two or three units in the sixth decimal place of refractive index, corresponds to a change of one second of arc in angular deflection of the light rays in these systems. Thus a careful evaluation of the refractive properties of glass components should be made when designing systems for space environments.
} "Space Radiation Affects Glass Refractive Properties," Optical Engineering 8(3), 080394 (1 March 1970). https://doi.org/10.1117/12.7971520 . Submission:

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