Illumination device

Illumination – Modifier mountable on light source envelope – With additional modifier

Patent

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Details

362307, 362343, F21M 314

Patent

active

050382594

ABSTRACT:
An illumination device comprising a reflecting plate, a single or a plural number of linear light source(s) arranged over said reflecting plate and a diffusing plate arranged over said light source(s), a light quantity adjusting means being arranged on the surface of the linear light source on between said light source(s) and said diffusing plate, and said illumination device being so adapted as to uniformalize luminance distribution on the diffusing plate by selecting shape and size of light-transmitting portions of the light quantity adjusting means.

REFERENCES:
patent: 3351409 (1967-11-01), McQuire
patent: 4391847 (1983-07-01), Brown
patent: 4418378 (1983-11-01), Johnson
patent: 4443834 (1984-04-01), Schafer et al.

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