High-intensity light display device

Details High-intensity light display device High-intensity light display device

1991-06-26

1993-07-13

Hjerpe, Richard

Communications: electrical

Visual indication

Movable

34081517, 34081531, 362 31, 40546, G09G 316

Patent

active

052277739

ABSTRACT:
A display device which is especially suited for application as a center-high-mounted stop-light (CHMSL) or brake light for an automotive vehicle includes a white linear light source. A coupler panel or sheet formed of a fluorescent dye-doped material couples light from one edge therethrough to an opposite edge from the light source to a light receiving edge of a display panel. The coupler panel transmits red light therethrough, absorbs other colors of light, and re-emits the absorbed light as red light. The display panel has a first surface formed with optical quality, light reflecting grooves, which reflect and disperse the edge coupled light out a second surface which is opposite to the first surface. Each groove includes a series of laterally spaced curved light dispersing depressions. The display panel viewed from the first surface is transparent at all times. The display panel viewed from the second surface produces a red light pattern reflected from the grooves when the light source is turned on, and appears transparent when the light source is turned off.

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