Phosphor heat-transfer method and apparatus therefor

Details Phosphor heat-transfer method and apparatus therefor Phosphor heat-transfer method and apparatus therefor

1995-05-11

1998-05-05

Lo, Weilun

Heating

With work cooling structure

432152, 432241, F27D 1502

Patent

active

057465894

ABSTRACT:
A phosphor heat-treating method and an apparatus therefor capable of providing a phosphor exhibiting improved crystallizability and increased in concentration of a luminous center therein. A phosphor is heated and rapidly cooled in atmosphere gas of a predetermined pressure. The pressure substantially restrains decomposition and scattering of the phosphor during heating and cooling of the phosphor.

REFERENCES:
patent: 4857228 (1989-08-01), Kabay et al.
patent: 5249960 (1993-10-01), Monoe
patent: 5273423 (1993-12-01), Shiraiwa
patent: 5288227 (1994-02-01), Righetti
patent: 5328360 (1994-07-01), Yokokawa
patent: 5421723 (1995-06-01), Katz

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