Single-based high-pressure discharge lamp particularly for automotive-type headlights

Single base, high-pressure discharge lamp having

• a base (8) including
• a base sleeve portion (8a), and
• an adjustable holder portion (8b) located within the base sleeve portion, and which is adjustable with respect to the base sleeve portion (8a);
• a double-ended discharge vessel (1) defining a discharge bulb portion (1a), a proximate end portion (1b), and a distal end portion (1c);
• an outer envelope (11) which is formed with a tubular extension (11a) surrounding at least the discharge bulb portion (1a) of the discharge vessel, said outer envelope being melt-connected (111) to the discharge vessel so that the discharge vessel (1) and the envelope (11) form a single structural unit (1, 11),
• and comprising
• a melt connection (20) between the envelope (11) of the single structural unit (1, 11) and the holder portion (8b) of the base (8), securely connecting and securing the single structural unit (1, 11) to the base (8);
• wherein the holder portion (8b) of the base (8) is formed with a reception region for the outer envelope (11);
• the reception region of the holder portion (8b) is formed of a meltable plastic material;
• the melt connection being formed between the tubular extension (11a) of the outer envelope (11) and the holder portion (8b) of the base;
• and
• wherein the reception region of the holder portion (8b) includes means (12) subject to high-frequency induced heating from melting the holder portion (8b) of the base (8) and the outer envelope (11) together and form said melt connection.