Ledvance Gmbh

Osram Gesellschaft MIT Beschraenkter Haftung

Osram Gmbh

Thomas Bittmann

Klaus Eckert

Bernd Pilhoefer

Florian Wagner

Jürgen Gräf

Patrick Kotal

Marcel Vuc

Thomas Deutscher

Richard Semba

A light fixture includes a light-permeable tube with an end cap pushed onto a free end of the tube, a light module arranged inside the tube and a driver device at least partially received in the tube for driving the light module, wherein the tube has a substantially constant external diameter over its entire longitudinal extent.

Cementing endcap onto straight glass tubes

A light fixture and a method of making a light fixture include a light-permeable tube, at least one end cap pushed onto a free end of the tube for closure, and a driver device received at least partially in the tube and held in the tube by the end cap for driving a light module arranged in the tube. The end cap is fastened on the tube by an expanded adhesive and the driver device is fastened to the end cap or to the tube by the expanded adhesive.

Driver fixation with cement for LED tubes

In various embodiments, a lighting device is provided. The lighting device may include at least one first part and at least one second part, fastened to the first part, which first and second parts are interconnected by a potting compound, the parts being positively interconnected by the potting compound.

Lighting device including interconnected parts

The elongate inner bulb () defines a longitudinal axis (A) and is sealed at mutually opposing ends by sealing parts (), an outer bulb being placed, with an adjoining tube piece, over the inner bulb and being fixed to the sealing part by means of an annular beading formed there, the end of the tube piece being radially attached to the beading, the maximum inner diameter of the beading being larger than the outer diameter of the sealing part in the region of the beading.

Electric lamp having an outer bulb

Growing community of inventors

Friedberg, Germany

Thomas Bittmann