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The problem to be solved:
Increase of luminous efficiency of fluorescence light sources.

To achieve an increase of luminous efficiency, the phosphor is put on the internal surface of a transparent biunique bulb, and on internal surface of a transparent biunique bulb and on the special designs inside a lamp. The general area surpasses the area of a biunique bulb, and on these designs the phosphor is marked.

All areas where the phosphor will be used as the light source, in particular in fluorescence lighting devices.

* Advantages:
Increase of the working area on which the phosphor is marked, that means increase of total
phosphor used in lamps of illumination, without increase in the volume of a biunique bulb.

Efficiency: the general illuminating intensity is increased.

Patent pending
First published: 2001 on

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