Light intensity equalizing element for lighted display panel

Details Light intensity equalizing element for lighted display panel Light intensity equalizing element for lighted display panel

1996-02-16

1997-09-23

Quach, Y My

Illumination

Elongated source light unit or support

With or including transparent or translucent member

362225, 362260, F21S 300

Patent

active

056697007

ABSTRACT:
An intensity equalizing element for placement between a number of individual fluorescent tubes in a light panel and the panel image display surface. The element includes a like number of curved surfaces in axial alignment with the individual tubes to reduce variation in observed intensity due to tube spacing. Each curved surface is provided with a non-uniform opaque dot pattern thereon to reduce variation in the intensity of light at the panel display surface and enhance uniformity of light intensity throughout an overlying image display.

REFERENCES:
patent: 2334005 (1943-11-01), Hoeveller
patent: 2434049 (1948-01-01), Nordquist
patent: 3760178 (1973-09-01), Miller
patent: 5270910 (1993-12-01), Kile

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