Sunlight readable illuminated indicia display devices

Details Sunlight readable illuminated indicia display devices Sunlight readable illuminated indicia display devices

1984-08-20

1985-08-13

Walsh, Donald P.

Illumination

Light source and modifier

Including selected wavelength modifier

40541, 40547, 362 27, 362 29, 362268, 362311, F21V 900

Patent

active

045353964

ABSTRACT:
Disclosed are indicia display devices that are sunlight readable and which comprise a lens system having one or more body portions each of which provides a transparent internal light reflecting medium interposed between a light receiving surface and a light transmitting surface; a legend plate disposed to receive light from the light transmitting surface, with the legend plate being a laminate made up of mutually bonded elements including one or more filters; and a light source disposed to supply light to the light receiving surface. Various specific configurations of the legend plate are disclosed.

REFERENCES:
patent: 2168221 (1939-08-01), Land
patent: 2420270 (1947-05-01), Thomas
patent: 2904662 (1959-09-01), Spring
patent: 3107350 (1963-10-01), Arrasmith
patent: 3188437 (1965-06-01), Lauren
patent: 3226864 (1966-01-01), Renler
patent: 3511560 (1970-05-01), Hamilton
patent: 3682531 (1972-08-01), Jeffers
patent: 3805004 (1974-04-01), Kondo
patent: 3957351 (1976-05-01), Stockwell
Goldsmith, T. T., "Filters Aid Television", Radio-Craft, Jan. 1948, pp. 28-29.
"Micromesh Filter", Kaiser Aerospace & Electronics Publication.
Mancini, R. H., "High Contrast Filter System", IBM Tech. Disc. Bull., vol. 13, No. 5, Oct. 1970, pp. 1391-1392.
Yeukin, A. Ye., "Method of Reducing . . . Elements"; Soviet J. of Opt. Tech., Feb. 1972, p. 115.

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