1974-12-09
1976-07-20
Corbin, John K.
350 96LM, G02B 524, G02B 514
Patent
active
039703754
ABSTRACT:
A light equalizer having an output aperture across which each area element exhibits substantially the same emission intensity regardless of the distribution of light into the input aperture of the equalizer. The equalizer is embodied in a stack of a plurality of transmissive elements, a number of which provide a multiplicity of light scattering centers. The exterior surface of the equalizer is covered with an internally reflective coating except for the input and output apertures.
REFERENCES:
patent: 1880414 (1932-10-01), Capstaff
patent: 2443918 (1944-06-01), Lahousse et al.
patent: 3227044 (1966-01-01), Hunt et al.
patent: 3587424 (1971-06-01), Pane et al.
Blau, Jr. Henry H.
Kebabian Paul L.
Corbin John K.
Environmental Research & Technology, Inc.
Henry Jon W.
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