Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1993-10-12
1996-12-31
Arana, Louis M.
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313573, 313582, 313634, H01J 6130
Patent
active
055897304
ABSTRACT:
A lighting and/or indicating apparatus for a motor vehicle, of the type comprising an external light transmitting element and a base arranged behind the latter, typically consists of a lighting and indicating cluster. The light transmitting element comprises an outer panel, the base comprises an inner wall, and the two walls together constitute a thin gas-tight envelope and define at least one closed cavity. This cavity, or each cavity, contains two electrodes and a suitable gas under low pressure, the apparatus having means for applying voltage for starting and maintaining a luminescent gas discharge in the cavity, so that the envelope itself constitutes at least one light of the gas discharge type. The appearance and light output are improved, and the light beams emitted are highly homogeneous.
REFERENCES:
patent: 4430597 (1984-02-01), Thompson
patent: 4612473 (1986-09-01), Nilssen
patent: 4665341 (1987-05-01), Imamura et al.
patent: 4721875 (1988-01-01), Goudy, Jr.
patent: 4935665 (1990-06-01), Murata
patent: 5272410 (1993-12-01), Fox
Brassier Marc
Gasquet Jean-Claude
Mauroy Bernard
Segaud Daniel
Arana Louis M.
Patel Vip
Valeo Vision
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