Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1979-09-06
1981-04-21
Trafton, David L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340765, 340784, 340366B, 3403782, 340380, 340383, 350345, G08B 536
Patent
active
042635942
ABSTRACT:
An electro-optical display device having an assembly of individual, electrically addressable display elements arrayed in a plurality of rows and columns, and a corresponding array of lenses, each of these display elements aligned with and on the optical axis of a respective one of the lenses with its reflective display surface facing the lens, and a screen for receiving the image projected along the plurality of optical axes, the elements displaying the images in accordance with illumination reflected therefrom, wherein the improvement comprises introduction of illumination from the non-reflective side of the display elements into the assembly, and wherein illumination-directing means outside of the optical axes are provided for reflecting the illumination onto the respective reflective display surfaces of each respective display element.
REFERENCES:
patent: 3331277 (1967-07-01), Wehde
patent: 3768887 (1973-10-01), Portmann
patent: 3899786 (1975-08-01), Greubel et al.
patent: 3909823 (1975-09-01), Knowlton
patent: 3966303 (1976-06-01), Yamamoto
patent: 4118924 (1978-10-01), Foellner
Izon Corporation
Rosen Daniel M.
Trafton David L.
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