High-pressure discharge lamp having construction for preventing breakdown

High-pressure discharge lamp having construction for preventing breakdown

The invention relates to a high-pressure discharge lamp comprising a discharge vessel provided with a first and a second lamp electrode, an outer envelope surrounding the discharge vessel with an interspace and having a lamp cap, and a tubular UV enhancer located in the interspace and having a longi...

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Hauptverfasser: Vos, Theodorus Petrus Cornelis Maria, Kessels, Martinus Joseph Maria, Renders, Maria Louisa
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Sprache:eng
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creator Vos, Theodorus Petrus Cornelis Maria
Kessels, Martinus Joseph Maria
Renders, Maria Louisa
description The invention relates to a high-pressure discharge lamp comprising a discharge vessel provided with a first and a second lamp electrode, an outer envelope surrounding the discharge vessel with an interspace and having a lamp cap, and a tubular UV enhancer located in the interspace and having a longitudinal axis, said UV enhancer having a wall of ceramic material and being provided with an internal enhancer electrode connected to the first lamp electrode and a capacitive coupling connected to the second lamp electrode, the enhancer electrode having an extremity which is situated within the UV enhancer. The high-pressure discharge lamp comprises a discharge vessel provided with a first and a second lamp electrode, an outer envelope which surrounds the discharge vessel with space and which is provided with a lamp cap. A tube-like UV enhancer having a longitudinal axis is provided in the space having a ceramic wall and provided with an internal enhancer electrode connected to the first lamp electrode and by way of a capacitive coupling connected to the second lamp electrode, and which enhancer electrode has an end inside the enhancer. The capacitive coupling is formed by a metal curl positioned around the UV enhancer in a plane perpendicular to the longitudinal axis of the UV enhancer and close to the end of the enhancer electrode. The lamp shows on ignition with a relative small ignition voltage only a very small ignition delay.
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The high-pressure discharge lamp comprises a discharge vessel provided with a first and a second lamp electrode, an outer envelope which surrounds the discharge vessel with space and which is provided with a lamp cap. A tube-like UV enhancer having a longitudinal axis is provided in the space having a ceramic wall and provided with an internal enhancer electrode connected to the first lamp electrode and by way of a capacitive coupling connected to the second lamp electrode, and which enhancer electrode has an end inside the enhancer. The capacitive coupling is formed by a metal curl positioned around the UV enhancer in a plane perpendicular to the longitudinal axis of the UV enhancer and close to the end of the enhancer electrode. The lamp shows on ignition with a relative small ignition voltage only a very small ignition delay.</abstract><oa>free_for_read</oa></addata></record>
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title High-pressure discharge lamp having construction for preventing breakdown
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