Compact fluorescent lamp having a lamp envelope with a reflective layer applied to the ends thereof
AssigneeGeneral Electric Company
InventorsLaszlo Balazs, Emoke Abasari, Ferenc Lantos, Istvanne Cserteg, Veronika V. Bobayne
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Abstract
A single-ended low pressure mercury vapor discharge lamp including a lamp envelope having at least two tube portions being connected with each other and dosed with additive and gas, and a housing member made in a manner suitable for electrical and mechanical connection to a lamp holder on one end, and mechanically fixing and making electrical contact with the lamp envelope on the other end. The end portion of the tube portions of the lamp envelope which are set at the housing member side are externally coated with a light-reflecting layer.
Claims12
A low pressure discharge lamp comprising:
- a lamp envelope containing a gas fill and being coated along an inner surface with a phosphor layer, at least two ends of the lamp envelope having electrodes therein for selectively energizing the gas fill;
- a housing receiving the at least two ends of the lamp envelope therein, the remainder of the envelope extending outwardly of the housing;
- and
- a reflective coating disposed on the at least two ends of the envelope disposed in the housing for reflecting light emitted from the at least two ends of the lamp envelope and increasing the luminous flux emitted from the lamp envelope.
Dependencies are inferred from the claim text.