Light correction member, light diffusion member, display...

Details Light correction member, light diffusion member, display... Light correction member, light diffusion member, display...

2007-05-08

2007-05-08

Husar, Stephen F (Department: 2875)

Illumination

Light fiber, rod, or pipe

Illuminating or display apparatus

C362S026000, C362S560000, C362S609000, C040S546000, C040S547000, C040S552000, C385S901000

Reexamination Certificate

active

10718606

ABSTRACT:
A display includes a display lightguide, on which a shape of a display character is formed in three dimensions, a light source, emitting a light toward the display lightguide, and a light collection portion, provided between the light source and the display lightguide, and having a light reflection face formed like a parabolic face which employs a straight line perpendicular to a light receiving face of the display lightguide as an axis thereof.

REFERENCES:
patent: 2207117 (1940-07-01), Collins
patent: 3497981 (1970-03-01), Tyne
patent: 4918578 (1990-04-01), Thompson
patent: 6259713 (2001-07-01), Hwu et al.

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