Thin schaukasten

Details Thin schaukasten Thin schaukasten

1979-11-19

1981-05-12

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural load device systems

Plural discharge device loads

40361, 40367, 315210, G02B 2702

Patent

active

042674891

ABSTRACT:
A thin schaukasten which is composed of a diffusive transparent plate, a light homogenizing member, a fluorescent lamp and a reflection member and in which the light homogenizing member has a reflection pattern formed on a transparent support media to provide a distribution of transmission for preventing non-uniform luminous intensity on one surface of the diffusive transparent plate and the reflection member is disposed in such a manner as to reduce non-uniformity in luminous intensity on one surface of the light homogenizing member. A lighting circuit for the fluorescent lamp includes a frequency converter for preventing flicker when the fluorescent lamp is lit, and the lighting circuit is used in common to a plurality of fluorescent lamps.

REFERENCES:
patent: 1868521 (1932-07-01), Bucky
patent: 3796916 (1974-03-01), DeBelder et al.
patent: 4118654 (1978-10-01), Ohta et al.

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