Hydrogen getter and method of manufacture

Details Hydrogen getter and method of manufacture Hydrogen getter and method of manufacture

1987-09-25

1989-05-02

Moore, David K.

Electric lamp and discharge devices

With getter

Mounted on electrode support

313558, 313560, 313561, 313562, H01J 1724, H01J 6126

Patent

active

048271888

ABSTRACT:
A hydrogen getter for use within the arc tube assembly of a gas discharge lamp e.g. a high pressure sodium discharge lamp, comprises a layer (11) of a getter material (eg Ti) sandwiched by diffusion bonding between layers (12, 13) of a hydrogen permeable material (eg Nb) there being an exposed region of getter material. Hydrogen getters in the form of disc-like washers are formed from the sandwiched layers by a stamping process.

REFERENCES:
patent: 2951172 (1960-08-01), Griffiths, Jr. et al.
patent: 3081413 (1963-03-01), Cummings
patent: 3519864 (1970-07-01), Gungle et al.
patent: 3737709 (1973-06-01), Hornmann et al.
patent: 3953755 (1976-04-01), Kuus et al.
patent: 4117369 (1978-09-01), Kuus et al.
Kuus; Selective Gettering of Hydrogen in High Pressure Metal Iodide Lamps; May/Jun. 76; (728-733).
Kuus; A Getter for Metal Iodide High Pressure Mercury Vapor Lamps; 1975; (354-355).

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