Thin high efficiency illumination system for display devices

Details Thin high efficiency illumination system for display devices Thin high efficiency illumination system for display devices

1993-02-01

1995-03-07

Husar, Stephen F.

Illumination

Illuminated scale or dial

Edge illuminated modifier or light rod/pipe

362 31, 362 84, 362231, 359 48, G01D 1128

Patent

active

053964063

ABSTRACT:
An illumination system for a display device includes an array of cylindrical lenslets for imaging an adjacent array of different color monochromatic emitting phosphor stripes onto the display device. Also included is a microcollimator reflector for each stripe which partially collimates emitted light from each phosphor stripe with respect to at least one axis of the display. An edge-irradiated energy distributor plate efficiently distributes ultra-violet energy by total internal reflection to the phosphor stripes that act as scattering and absorbing centers for the ultra-violet energy.

REFERENCES:
patent: 4799050 (1989-01-01), Prince et al.
patent: 5121233 (1992-06-01), Spencer et al.
patent: 5267062 (1993-11-01), Bottorf

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