Fluorescent lamp with improved phosphor coating and related proc

Details Fluorescent lamp with improved phosphor coating and related proc Fluorescent lamp with improved phosphor coating and related proc

1991-07-12

1993-10-26

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

427 67, 445 58, H01J 922

Patent

active

052560961

ABSTRACT:
A fluorescent lamp including a lamp bulb which has been coated with phosphor powder which has been ground in an attritor to reduce the powder weight without loss in light output and light maintenance. A process to produce such a fluorescent lamp utilizes a particular sequence of steps including firing, milling, attritor milling, and washing to produce an improved stir-in alkaline earth halophosphate.

REFERENCES:
patent: 2987414 (1961-06-01), Martyny
patent: 3023340 (1962-02-01), Repsher
patent: 4208448 (1980-06-01), Panaccione
patent: 4401276 (1983-08-01), Arbie
patent: 4826622 (1989-05-01), Gingerich et al.
patent: 4897217 (1990-01-01), Jackson
patent: 5045008 (1991-09-01), Lagos
Szegvari and Yang, "Attritor Grinding and Dispersing Equipment," Union Process Inc., Akron Ohio. Date unknown.

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