Osram Gesellschaft MIT Beschraenkter Haftung

Osram Gmbh

Florian Bedynek

Frank Werner

Kilian Klages

Thomas Reiners

Karsten Pietsch

Dirk Grundmann

Matthias Protsch

Conrad Schimke

Michael Bönigk

Jürgen Becker

Matthias Bruchhausen

Grigorios Tsilimis

Johannes Kahsche

A mercury-free discharge lamp with an electrical power consumption of less than 35 Watts may include a translucent discharge vessel which has a discharge space into which electrodes protrude for generating a gas discharge, wherein metal halides and ignition gas are contained in the discharge space, wherein the metal halides are present in a quantity in the range from 5 milligrams to 15 milligrams per 1 milliliter of discharge space volume in the discharge space.

Mercury-free discharge lamp having a translucent discharge vessel

A high-pressure discharge lamp having a single socket, comprising: a discharge vessel () having two opposite sealed ends () and a discharge chamber () arranged between the sealed ends (), a first sealed end () extending into a lamp base () and the second sealed end () protruding out of the lamp base (), a first electrode () which is fixed in the first sealed end () of the discharge vessel () and has an end on the discharge side extending into the discharge chamber (), a second electrode () which is fixed in the second sealed end () of the discharge vessel () and has an end on the discharge side extending into the discharge chamber; and (), a base flange () arranged on the lamp base () and defining a plane () which is usable for adjusting the high-pressure discharge lamp in an optical system wherein for the distance A from the end of the first electrode () on the discharge side to the plane () of the base flange () and for the distance B from the end of the second electrode () on the discharge side to the plane () of the base flange (), the following relation applies: 

High-pressure discharge lamp having a single socket

The invention relates to a high-pressure discharge lamp having a transparent discharge vessel, an ionizable filling which is arranged in the discharge space of the discharge vessel and electrodes, which extend into the discharge space of the discharge vessel, for the purpose of producing a gas discharge, as well as power supply lines, which are passed out of the discharge vessel, for the purpose of supplying energy to the electrodes, the discharge vessel of the high-pressure discharge lamp being provided partially with an electrically conductive coating, with the result that a capacitive coupling is produced between the coating and at least one electrode and/or power supply line. As a result, the starting properties and the luminous efficiency of the lamp are improved.

High-pressure discharge lamp having electrically conductive transparent coating

Growing community of inventors

Berlin, Germany

Florian Bedynek