Light conductive plate and plane illuminating apparatus using th

Details Light conductive plate and plane illuminating apparatus using th Light conductive plate and plane illuminating apparatus using th

1995-02-10

1997-09-09

Husar, Stephen F.

Illumination

Revolving

362 27, 362330, 362800, F21V 704

Patent

active

056648618

ABSTRACT:
A light conductive plate used in a side light source type plane illuminating apparatus having a light source arranged on one side portion of a transparent light conductive plate, has a dimming pattern composed of a plurality of curves provided on the back of said light conductive plate. Portions of each of the curves of the dimming pattern located nearer the edge near a light source extend substantially perpendicular to the edge and portions of each of the curves of the dimming pattern located farther from the edge near a light source extend substantially parallel to the edge.

REFERENCES:
patent: 5130898 (1992-07-01), Akahane
patent: 5450292 (1995-09-01), Yokoyama et al.

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