Schott Ag

Volker Hagemann

Bernd Hoppe

Hubertus Russert

Jürgen Meinl

Albrecht Seidl

Yvonne Menke

Bernd Woelfing

Thomas Reichert

Michael Kluge

Bernd Wölfing

Juergen Meinl

Guenter Weidmann

Bernd Schultheis

Peter Brix

Edgar Pawlowski

Matthias Bockmeyer

Peter Nass

Hauke Esemann

Rainer Liebald

Eveline Rudigier-Voigt

Wolfram Beier

Frank Gindele

Oliver Keiper

Christian Rakobrandt

Joerg Schuhmacher

Martin Cramer

Ralf Jedamzik

Günter Weidmann

Franziska Back

Holger Werner

Ulrike Stöhr

Jonas Grimm

Peter Naß

Sylvia Biedenbender

Niko Schultz

Sebastian Leukel

Alexander Penkert

Jörg Schuhmacher

Urban Weber

Jens Vietor

Uwe Petzold

Seong-Won Kim

An illumination device includes a light source, a light conversion element with a front side, an optical element, and first and second optical interfaces, wherein (a) an outer surface of the optical element includes a first surface area extending obliquely to the front side, so that secondary light can be decoupled at the second optical interface from the optical element into the surrounding medium in a direction which has a smaller angle in relation to the normal of the front side than if the first surface area extended in parallel to the front side of the light conversion element, and/or (b) the outer surface includes a second surface area extending obliquely to the front side of the light conversion element, so that secondary light can be reflected at the second optical interface into the optical element with total reflection in a direction toward the normal of the front side.

Illumination device

A light source is provided that includes a laser operable to emit laser light at a wavelength in a range from 460 nanometers to 470 nanometers and a converter assembly arranged so as to absorb the laser light emitted by the laser and to emit photoluminescent light produced by the laser light and having a longer wavelength than the laser light. The converter assembly has a converter element with a ceramic doped with Eusuch that under irradiation of the laser light the converter assembly emits photoluminescent light in the red spectral range.

Light source with photoluminescence emitter

An imaging system includes at least one laser light source having a wavelength in the visible spectral range and a beam guidance element with high solarization resistance at high beam power densities. The invention also relates to the use of the imaging system, in particularly in projectors and in material processing.

Imaging system comprising beam guidance element with high solarization resistance in the visible spectral range

An endoscope is provided that includes a first component, a second component, a light source, an image capturing element, and a light guide. The second component has a proximal end and a distal end with proximal end coupled to the first component. The light source is integrated in the first component and includes a laser and a converter. The laser emits primary light and the converter converts the primary light at least partially into secondary light that has a different wavelength. The image capturing element is arranged at the distal end. The light guide has an optical fiber that extends through the second component. The converter is coupled to the proximal end such that the primary and secondary light is injected into the optical fiber, is conducted from the proximal end to the distal end, and emitted at the distal end.

Endoscope, disposable endoscope system and light source for endoscope

A strongly scattering optoceramic converter material having a density of less than 97% is provided, as well as a method for producing such an optoceramic material. By appropriately choosing in particular the composition, blending method, and sintering conditions, the production method permits to produce converter materials with tailored properties.

Strongly scattering ceramic converter and method for producing same

An optical converter wheel, a method of producing, and a method of using are provided. The wheel includes an inorganic converter material that converts light of a first wavelength into light of a second wavelength and a converter substrate. The converter substrate has a coefficient of thermal expansion CTEof 4 to 18&#xd7;101/K in a range from 20&#xb0; C.-300&#xb0; C. and a thermal conductivity of at least 50 W/mK at 20&#xb0; C.

Optical converter wheel

A lighting device includes: at least one laser light source configured to emit a light beam; and a light conversion element associated with the at least one laser light source and arranged in the beam path of at least one light beam generated by at least one laser light source such that at least a portion of the light beam emitted by the at least one laser light source is directed onto the light conversion element, and in such a way that a laser light spot is illuminated on a face of the light conversion element facing the incident light beam, the light conversion element comprising a material which, through scattering, absorption and conversion of the incident laser light, emits and scatters light of a larger wavelength.

Lighting device, preferably with adjustable or adjusted color location, and use thereof, and method for adjusting the color location of a lighting device

A method and device for aligning a light spot of light exiting from at least one light guide on an optical converter are provided. The device includes a light guide from which light exits and is incident on an optical converter to at least a substantial fraction, thereby forming a light spot thereon, wherein the exit surface of the fiber has an angle relative to the longitudinal axis of the fiber which is different from 0&#xb0;, and the position of the light spot on the converter is aligned by adjusting the angle. A conversion module as a part of a lighting device is also provided that is operated with excitation light of a light source using a fiber-optical light guide.

Method for aligning a light spot produced on an optical converter, device comprising a light spot and use thereof, and converter-cooling body assembly with metallic solder connection

A converter arrangement for light sources with high luminance is provided that includes an axially pivotable carrying wheel and a converter fixed on one side of the carrying wheel. The converter includes fluorescent materials that convert impinging light into light having a different wave length and emits the light having the different wavelength. The ratio of the total area of the converter arrangement to the area enclosed by the outer boundary curve of the converter is at least 3, preferably at least 3.5, particularly preferably at least 4.5.

Cooling of a converter arrangement for light sources with high luminance

An assembly is provided that includes a ceramic converter for converting light having a first wavelength into light having a second wavelength, a metal-containing reflective coating, and a cooling element. The surface of the ceramic converter is at least partly coated with the metal-containing reflective coating. The coating dissipates the heat from the converter into the cooling element. The cooling element and the metal-containing reflective coating are connected to one another by a metallic solder connection.

Converter-cooling element assembly with metallic solder connection

A fiber-optic conversion module is provided as part of a lighting device on a vehicle. The module includes optical fibers with connectors, a light exit head, and a converter mounted on a cooling element. Shorter wavelength excitation light is fed to the optical fibers that emit the excitation light towards the converter arranged at an angle relative to the beam direction, at a light spot that remits useful light in a radiation angle in form of a cone of useful light and reflects excitation light as a Fresnel reflection substantially outside the cone of useful light, where Fresnel reflection is made harmless by a light stop.

Fiber-optic conversion module

An optical converter for producing colored or white light from blue excitation light is provided. The converter has good scattering properties to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components. The optical converter includes material including one or more of a YAG ceramic, a LuAG ceramic, and a magnesium-aluminum ceramic exhibiting strong scattering.

Optical converter for high luminances

Lighting equipment for generating white light from blue or violet excitation light and converted emitted yellow light is provided. The excitation light is directed at an oblique angle towards a converter that is attached to a carrier device, without the emitted illumination light impinging on the carrier device.

Lighting equipment for generating light of high luminance

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Klein-Winternheim, Germany

Volker Hagemann