Invention Grant
US09030099B2 High pressure discharge lamp with multiple arc tubes 有权
高压放电灯带多个电弧管

High pressure discharge lamp with multiple arc tubes
Abstract:
A long life high pressure arc discharge lamp configuration is disclosed. In some embodiments, the lamp includes a first non-cycling high pressure arc tube having a first ignition aid and a second arc tube electrically connected in parallel to the first arc tube. A lamp envelope is provided about the first and second arc tubes. In some cases, each of the first and second arc tubes is a non-cycling high pressure sodium arc tube, and each is configured with an ignition aid strip running lengthwise down the corresponding arc tube. In some cases, the first and second arc tubes are oriented such that their respective ignition aid strips are effectively 180 degrees+/−90 degrees away from each other, or so that their respective ignition aid strips are effectively 180 degrees+/−5 degrees away from each other. In some such, the second arc tube is a low-pressure arc tube.
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