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1. US20110266947 - CERAMIC GAS DISCHARGE METAL HALIDE LAMP

Office United States of America
Application Number 13142607
Application Date 04.12.2009
Publication Number 20110266947
Publication Date 03.11.2011
Publication Kind A1
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61
Gas-discharge or vapour-discharge lamps
02
Details
12
Selection of substances for gas fillings; Specified operating pressure or temperature
18
having a metallic vapour as the principal constituent
20
mercury vapour
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61
Gas-discharge or vapour-discharge lamps
02
Details
12
Selection of substances for gas fillings; Specified operating pressure or temperature
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61
Gas-discharge or vapour-discharge lamps
02
Details
04
Electrodes; Screens; Shields
H01J 61/20
H01J 61/12
H01J 61/04
CPC
H01J 61/125
H01J 61/26
H01J 61/827
Applicants KONINKLIJKE PHILIPS ELECTRONICS N.V.
Inventors Tu Junming
Title
(EN) CERAMIC GAS DISCHARGE METAL HALIDE LAMP
Abstract
(EN)

A ceramic gas discharge metal halide (CDM) lamp (10) capable of retrofitting into existing high pressure iodide (HPI) metal halide and high pressure mercury vapor (HP) lamp fixtures for significient energy savings, the CDM lamp (10) having a ceramic discharge vessel (12) containing a pair of discharge electrodes (17, 18), a Penning mixture of the rare gases neon and argon, and a chemical fill which includes an oxygen dispenser and which restricts strong oxygen binders to 5 mole percent or less. In a preferred embodiment, the discharge vessel (12) has an aspect ratio R of less than 2, a wall thickness t of up to 1.2 mm, a spacing d between the discharge electrodes (17, 18) of up to 14 mm, and a passive antenna (26) on the outer wall of the discharge vessel (12), with the shortest distance a between a discharge electrode (17, 18) and the floating antenna (26) of up to 7 mm.