Lighting unit

Details Lighting unit Lighting unit

2003-10-01

2009-02-24

Payne, Sharon E (Department: 2875)

Illumination

Edge lighted panel

Light modifier for edge lit light source

C362S610000, C362S614000, C362S616000

Reexamination Certificate

active

07494259

ABSTRACT:
A lighting unit including a light-reflecting reflector, a plurality of cold cathode tubes disposed inside the reflector and an optical waveguide connected with an open end of the reflector to guide the light emitted by the cold-cathode tubes. The reflector has a reflective surface that reflects the light having been emitted by the cold-cathode tubes in the direction nearly perpendicular to the wall of each tube, and only in a direction in which the light reflected does not re-enter the cold-cathode tubes. In another embodiment, the lighting unit may include a second optical waveguide disposed in the space between the cold-cathode tube and the reflector, wherein a space is formed between the cold-cathode tube and the second optical waveguide.

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