Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1976-02-27
1977-08-02
Newsome, John H.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 64, 427215, 250492B, B05D 306
Patent
active
040396991
ABSTRACT:
A method of preparing a phosphor by injection of activator ions which become luminescent centers into crystals of a base material of the phosphor comprising the steps of generating ions of an activator, accelerating the activator ions by giving kinetic energy thereto, irradiating and injecting the accelerated activator ions into the base material, and agitating the base material.
An apparatus for preparing phosphor according to the method of the invention comprises an activator ion source section having an ion generating section for generating activator ions and an ion accelerating electrode section for accelerating and irradiating the generated activator ions into the base material of the phosphor, a base activating vessel section having an agitating means for containing the base material of the phosphor and for continuously circulating the same therein in order to uniformly irradiate the accelerated activator ions into the base material of the phosphor, and a vacuum sytem for providing a low-pressure atmosphere at least to the activator ion source section and the base activating vessel section.
REFERENCES:
patent: 3932760 (1976-01-01), Inoue
Kranik et al., "IBM Tech. Disc. Bull", vol. 17, No. 12, p. 3597, May 1975.
Donnelly et al., "Chem. Abstr.", vol. 73:50012h, 1970.
Morimoto Kiyoshi
Takagi Toshinori
Utamura Yukihiko
Futaba Denshi Kogyo K.K.
Newsome John H.
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