| 摘要 |
To mount a discharge vessel (8) within an elongated bulb or envelope (2) while permitting thermal expansion of the discharge vessel (8) and yet maintaining the discharge vessel, free from vibration, within the tube in alignment with the longitudinal axis thereof, a flat leaf spring element (15, 15') (FIG. 2 ) is secured to a holder structure (5; 6a, 6b, 12) secured in the bulb and the respective electrode current connections (10a, 10b, 25a, 25b) to the discharge vessel, the flat leaf spring element being so located in the bulb that its major plane is oriented essentially perpendicularly to the longitudinal axis of the lamp. Preferably, the leaf spring element is an essentially flat plate, with at least one bent-over welding tab for connection to the connecting leads (6a, 6b) and cut with an essentially U-shaped punch cut to leave two outer stabilizing arms (19) and an inner part (18), which inner part is secured to the current connection from the arc tube such that the lever arm (h2) between the outer ends (20) of the two arms (19) and the longitudinal axis of the lamp is about half of the lever arm between the longitudinal axis of the lamp and the attachment of the spring element to a connecting lead (6a, 6b, 12).
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