Patent application number | Description | Published |
20110115404 | METHOD AND DEVICE FOR DETERMINING CALIBRATION DATA FOR AN LED LIGHT SOURCE WHILE TAKING INTO CONSIDERATION THE BARRIER LAYER TEMPERATURE - In various embodiments, a method for determining calibration data for a light source is provided. The method may include determining at least one of a photometric quantity and a colorimetric quantity of the light source; determining a color stimulus specification using at least one of the photometric quantity and the colorimetric quantity; and determining the calibration data as a function of the color stimulus specification and a temperature of the light source. | 05-19-2011 |
20120316397 | Light Source unit and projector having such a light source unit - 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 mariner 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. | 12-13-2012 |
20130094182 | Light Source Unit with Phosphor Element - A light source unit comprising: a pump light source ( | 04-18-2013 |
20130100643 | Light source unit, an illuminating device equipped with the light source unit and medical equipment - The present invention relates to a light source unit having at least one LED sub light source unit. Each LED sub light source unit includes three types of LEDs: phosphor converted green LED, orange-red LED with a wavelength of 614 nm-622 nm, and blue LED with a wavelength of 460 nm-476 nm. Light generated by the three types of LEDs is mixed to generate white light. | 04-25-2013 |
20130155379 | Projection Device and Method for Operating a Projection Device - A projection device ( | 06-20-2013 |
20130155648 | COLOUR-TUNABLE LIGHT SOURCE UNIT WITH PHOSPHOR ELEMENT - The invention concerns a light source unit of tunable spectral properties, having a pump light source and a phosphor element for a conversion of pump light into converted light intended for illuminating a target, wherein the phosphor element has at least two phosphor element sections interacting differently with pump light, and wherein the light source unit further comprises a deflecting unit, such as a zoom lens or a variable diffraction grating, for deflecting the pump light so as to vary a distribution of pump light incident onto the phosphor element with respect to the different phosphor element sections, in order to vary spectral properties of the combined converted light beam emanating from the light source unit. | 06-20-2013 |
20130155649 | Phosphor Device and Lighting Apparatus Comprising the Same - A phosphor device ( | 06-20-2013 |
20130294045 | SOLAR SIMULATOR AND METHOD FOR OPERATING A SOLAR SIMULATOR - A solar simulator with at least one lamp module, where the luminous module contains multiple light generating units is disclosed. Each of the light generating units contain at least one semiconductor light source, which generate light in a plurality of separately controllable wavelength ranges. Disposed downstream from the light generating units is a light-concentrating primary optical unit. A light-homogenizing secondary optical unit is likewise disposed downstream of the light generating units. And an imaging tertiary optical unit is disposed downstream of the secondary optical unit. A method for operating the solar simulator and the light generating units in such a way that the solar simulator generates light radiation that alters over time is also disclosed. | 11-07-2013 |
20130301237 | INTERNALLY COOLED FLUORESCENT DEVICE AND REFLECTOR LAMP ARRANGEMENT COMPRISING SAID FLUORESCENT DEVICE - A dual fluorescent wheel with two disk-shaped carrier elements which are interconnected by wing-type cooling ribs is disclosed. When the dual fluorescent wheel rotates, air flows in through an axial opening in one of the carrier elements, the air flows radially through the interspace between the carrier elements or the wing-type cooling ribs and flows out at the edge. This airflow improves the dissipation of heat which is produced when an excitation laser irradiates the annular fluorescent strips located on the two exterior faces. | 11-14-2013 |
20140126179 | METHOD FOR MANUFACTURING A PHOSPOR DEVICE AND LIGHTING APPARATUS COMPRISING SUCH PHOSPHOR DEVICE - A method for manufacturing a phosphor device may include: providing an optical transmitting member having a first end face and a second end face, whereby the optical transmitting member is designed for guiding exciting light entering through the first end face onto a phosphor layer arranged on the second end face, whereby at least a part of the exciting light is being wavelength-converted by the phosphor layer, and whereby the optical transmitting member is further designed for at least partially collecting and guiding the light converted by the phosphor layer; attaching an optically transparent electrode on the second end face of the optical transmitting member; providing a phosphor and a counter-electrode designed for electrophoretic deposition of the phosphor; and depositing a phosphor layer on the optically transparent electrode by means of electrophoretic deposition, thereby using the optically transparent electrode as a coating electrode. | 05-08-2014 |
20140153214 | Phosphor Device and Lighting Apparatus Comprising the Same - A phosphor device ( | 06-05-2014 |
20140166902 | Wavelength Conversion Body And Method For Manufacturing Same - A wavelength conversion body ( | 06-19-2014 |
20140177663 | Semiconductor Emitter and Method for Producing Useful Light from Laser Light - A semiconductor emitter ( | 06-26-2014 |