| 摘要 |
The arc of an alternating current discharge lamp may be magnetically straightened by including a small direct current component to the lamp current. The lamp may then be operated substantially as an alternating current lamp, but with out the need to synchronize the magnetic field with the alternating lamp current. The minor inclusion of the direct current component enables the lamp to be magnetically deflected effectively for arc straightening, optical positioning of the arc, offset positioning from the envelope wall to preserve lamp life, and other useful functions.
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