High pressure discharge lamp having a simplified mount construct

Details High pressure discharge lamp having a simplified mount construct High pressure discharge lamp having a simplified mount construct

1990-12-13

1992-04-28

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 47, 315 71, 315 73, 315 74, 313 25, 313573, 313570, 313634, H01J 744, H01J 1346, H01J 1734

Patent

active

051091836

ABSTRACT:
A high pressure sodium discharge lamp having an arc tube mounted within a lamp envelope and having a resistor connected electrically in series with the arc tube. An insulative body is provided between the arc tube feed-through closest to the stem and a rigid conductor for axially supporting the arc tube and electrically insulating the feed-through from the rigid conductor. The series flicker-elimination resistor is mounted adjacent the lamp stem and electrically shunts the insulative body. An integral thick film resistor which includes the series resistor and a starting resistor for a starting circuit has optimized terminal placement for simplifying mount construction.

REFERENCES:
patent: 3353136 (1967-11-01), Umantsev
patent: 3947799 (1976-03-01), Epaneshnikova et al.
patent: 4258288 (1981-03-01), Michael et al.
patent: 4599543 (1986-07-01), Strok
patent: 4792782 (1988-12-01), Hammond
patent: 4901051 (1990-02-01), Murata et al.
patent: 5008583 (1991-04-01), Carleton

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