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Feasibility Study And Design Of A Self-Attenuating Light Valve: Supersedes WADC TR 59-81

Report Number: WADD TR 60-827
Author: Dreyer, John F.
Corporate Author: Polacoat Incorporated
Laboratory: Life Support Systems Laboratory
Date of Publication: 1961-02
Pages: 24
Contract: AF 33(616)-6715
Project: 7165
Task: 71839
AD Number: AD0265431

The use of phototropic materials as self-attenuating light valves has been re-evaluated in the light of additional information. Sunglass application still appears to be feasible. As eye-protective devices to prevent flashblindness and retinal burns from nuclear detonations, phototropic filters appear to be feasible. However, it is impossible to state that they will provide complete eye protection under all operational conditions until more information is available on: (1) the absorption coefficients of the materials and (2) the tolerance of the human retina to short-duration, high-intensity radiation.

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