Information display panel

Details Information display panel Information display panel

1985-10-11

1987-09-22

Corbin, John K.

G02B 308, G02B 2722

Patent

active

046951350

ABSTRACT:
An image-magnifying element for use in a large-screen panel for assembling constituent pictures displayed on separate picture tubes (2) to form a new unitary picture (30) without discontinuities includes a Fresnel lens (6) whose surface (7, 8) has a curvature which is concentric with that of the faceplate (5) of the picture tube. The Fresnel lens is provided with curved upright side walls (11, 12) of a transparent material, whose outer surfaces (15) are reflecting and whose edges (13, 14) have a curvature corresponding to that of the picture tube.

REFERENCES:
patent: 4309073 (1982-01-01), Nishimura et al.
patent: 4309074 (1982-01-01), Granieri, Jr.

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