Fluorescent suntanning lamps

Details Fluorescent suntanning lamps Fluorescent suntanning lamps

1991-12-13

1993-08-10

Bell, Janyce

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

B65D 506

Patent

active

052347109

ABSTRACT:
A skin tanning fluorescent lamp having a coating of a uniform and homogeneous deflocculated physical mixture of a first and second phosphor where the first phosphor has a desired emission in the spectral region from about 320 to about 400 nanometers and the second phosphor has a desired emission in the spectral region from about 280 to about 320 nanometers, said first phosphor has a first isoelectric point at a first pH and the second phosphor has a second isoelectric point at a second pH. The first and said second pH form a range. The deflocculated coating is stabilized by deflocculating the first and second phosphors at a third pH sufficiently outside of range to produce a resulting coating consistently having desirable emission during production.

REFERENCES:
patent: 4055781 (1977-10-01), Schreurs
patent: 4499403 (1985-02-01), Leppelmeier et al.

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