Cathode shielding for deuterium lamps
First Claim
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1. A gas-discharge lamp comprising:
- a lamp bulb filled with gas;
an anode arranged inside the lamp bulb;
a cathode arranged spaced from the anode inside the lamp bulb;
a housing having a molded body, a housing rear wall made of a metal, and a housing base and made at least partially of a non-conductive material, wherein the housing base has a housing front, a housing intermediate wall, and a cathode space; and
a cathode shielding window, wherein the cathode shielding window is insulated relative to the molded body and housing rear wall and/or comprises an insulating material.
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Accused Products
Abstract
A gas-discharge lamp (deuterium lamp) is provided having a lamp bulb (26) filled with gas, an anode (12) disposed inside the lamp bulb, a cathode (10) spaced from the anode inside the lamp bulb, a housing having a molded body (18), a rear housing wall (24), and a housing base made at least partially of electrically nonconductive material. The housing base includes a housing front (16), an intermediate housing wall (22), a cathode space (28), and a cathode shielding window (20). The cathode shielding window is insulated from the molded body and/or is made of an insulating material. The gas-discharge lamp is particularly applicable for analytical purposes.
17 Citations
9 Claims
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1. A gas-discharge lamp comprising:
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a lamp bulb filled with gas; an anode arranged inside the lamp bulb; a cathode arranged spaced from the anode inside the lamp bulb; a housing having a molded body, a housing rear wall made of a metal, and a housing base and made at least partially of a non-conductive material, wherein the housing base has a housing front, a housing intermediate wall, and a cathode space; and a cathode shielding window, wherein the cathode shielding window is insulated relative to the molded body and housing rear wall and/or comprises an insulating material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification
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Current AssigneeHeraeus Noblelight GmbH (Heraeus Holding GMBH)
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Original AssigneeHeraeus Noblelight GmbH (Heraeus Holding GMBH)
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InventorsJenek, Torsten, Ernesti, Karsten, Malkmus, Rolf
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Primary Examiner(s)Mai, Anh
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Assistant Examiner(s)QUARTERMAN, KEVIN J
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Application NumberUS13/139,562Publication NumberTime in Patent Office1,110 DaysField of Search313/484, 313/493, 313/567, 313/634, 313/636, 313/637, 313/318.01US Class Current313/636CPC Class CodesH01J 61/10 Shields, screens, or guides...H01J 61/68 Lamps in which the main dis...
