Osram Gmbh

Osram Ag

Osram Gesellschaft MIT Beschraenkter Haftung

Osram Gesellschaft MIT Beschrankter Haftung

Matthias Morkel

Ulrich Hartwig

Henning Rehn

Nico Morgenbrod

Mathias Bruemmer

Dirk Berben

Rainer Koger

Lars Menzel

Matthias Bruemmer

A phosphor device () comprising a carrier member () having upper and lower faces; a phosphor layer () being arranged at the upper face of the carrier member (), whereby the phosphor layer () comprises at least one phosphor zone (R; G; Y); a reflective zone () being arranged adjacent to the at least one phosphor zone (R; G; Y); an optical transmitting member () having a first end face () and a second end face (), the optical transmitting member () being arranged at the top portion of the phosphor layer () and the reflective zone (), whereby wherein the first end face () of the optical transmitting member () covers at least a subarea () of each of the at least one phosphor zone (R; G; Y) and the reflective zone ().

Phosphor device and lighting apparatus comprising the same

A light guiding structure comprising a light guiding element () optically connected to a light source () and an optical element () coupled thereto, wherein the surface of the optical element () remote from the light guiding element () has the shape of a section () of a rotational ellipsoid, wherein a geometric cutting plane of the section () extends approximately at right angles to the longitudinal axis of the rotational ellipsoid.

Lighting fixture having an optical wave guide and a descartes lens or descartes reflector

A phosphor device () comprising a carrier member () having upper and lower faces; a phosphor layer () being arranged at the upper face of the carrier member (), wherein the phosphor layer () comprises at least two tiled phosphor zones (R, G, B); an optical transmitting member () having a first end face () and a second end face (), the optical transmitting member () being arranged at the top portion of the phosphor layer (), whereby the first end face () of the optical transmitting member () covers at least a subarea () of each of the at least two phosphor zones (R, G, B).

A light source unit comprising: a pump light source () for an emission of pump light (), a phosphor element () for a conversion of said pump light () into converted light (), an optical system () for transmitting at least a part of said converted light () for further use, wherein at least a part of said pump light () is coupled into said optical system () and transmitted by said optical system () to said phosphor element () for said conversion.

Light source unit with phosphor element

A phosphor device comprising a carrier member having upper and lower faces; a reflecting member having a side surface portion and a bottom portion, the reflecting member being arranged at the upper face of the carrier member; a phosphor layer being embedded in the reflecting member; a transmitting member having a first end face and a second end face, the transmitting member being arranged on the phosphor layer, wherein the first end face of the transmitting member completely covers the top portion of the phosphor layer.

A light source unit may include a cooling device; a luminescent substance; an excitation radiation source having a laser source; and an optical element arranged between the radiation source and the substance; wherein the cooling device constitutes a heat sink, wherein the substance is linked thermally to the heat sink; and wherein the optical element is designed as an integrating optical element and is coupled between the radiation source and the substance in such a manner that a part of the radiation emitted by the radiation source, entering in an acceptance angle range of the integrating optical element, is subjected to an internal reflection in the optical element before it exits the optical element and strikes the substance, and that a part of the radiation emitted by the substance enters the optical element and exits the optical element as effective radiation.

Light source unit and projector having such a light source unit

A lamp with an AC lamp burner may include two electrodes spaced apart from one another, a device configured to apply a voltage with alternating polarity to the electrodes; and a reflector, which has a first partial section, which is in the form of a partial body of a first ellipsoid, which has a first and a second focus, or is in the form of a partial body of a first paraboloid, which has a first focus, the reflector having a second partial section, which is in the form of a partial body of a second ellipsoid, which likewise has a first and a second focus or is in the form of a partial body of a second paraboloid, which has a first focus, the first foci of the two ellipsoids or paraboloids being located at different points.

AC voltage reflector lamp

The invention relates to a discharge lamp with a discharge vessel () and at least one bulb neck (I, II) connected thereto with an inner quartz bar () and a first foil arrangement (), which is arranged on the outer side () of the quartz bar () and is connected to power supply lines () for an electrode () which are arranged on both sides of the quartz bar (), wherein the bulb neck (I, II) comprises at least one second foil arrangement (), which is connected to the power supply lines () and has a greater distance with respect to the longitudinal axis (A) of the quartz bar () than the first foil arrangement (). The invention also relates to a method for producing a bulb neck of a discharge lamp.

Discharge lamp and method for producing a bulb neck for a discharge lamp

The invention relates to a discharge lamp, in particular a high-pressure discharge lamp, having a discharge vessel () which has two diametrically opposite necks () into each of which a holding rod () is fused at least in places, with an electrode () which extends into the discharge vessel () being arranged on each holding rod (), and with in each case at least one annular plate () at least partially clasping a holding rod (), with at least one of the annular plates () being arranged in the discharge vessel ().

Growing community of inventors

Berlin, Germany

Matthias Morkel