Osram Gmbh

Osram Ag

Mathias Bruemmer

Ulrich Hartwig

Nico Morgenbrod

Matthias Morkel

Henning Rehn

Dirk Berben

Markus Stange

Tobias Gleitsmann

Werner Stolzenberg

Thorsten Klebba

Rainer Quandt

A lamellar arrangement for shielding radiation acting on a fluid which flows through an interior of a device, comprises two or more lamellae aligned substantially parallel to one another and respectively defining an intermediate space between them, wherein at least one subset of the lamellae is respectively subdivided into at least three lamella sections comprising a first lamella section, a second lamella section next to the first lamella section and a third lamella section next to the second lamella section. The first lamella section and the second lamella section in this case enclose a first angle between them, and the second lamella section and the third lamella section enclose a second angle between them. The first angle has a magnitude in a range of from 20° to 45° and the second angle has a magnitude in a range of from 20° to 45°.

Lamellar arrangement and device for sterilizing a fluid by means of UV radiation comprising such a lamellar arrangement

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 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 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

Growing community of inventors

Wusterwitz, Germany

Mathias Bruemmer