# US 2017/0284622 A1 · Illumination device for variable illumination > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284622 A1 - Document ID: US20170284622A1 - Status: Published application - Kind: A1 - Application number: 15/508,134 - Filed: 2015-08-26 - Published: 2017-10-05 - Earliest claimed: 2014-09-02 - Assignees: OSRAM GmbH - Applicants: OSRAM GmbH - Inventors: Henning Rehn; Sergey Khrushchev - Web page: https://patentgrep.com/patent/US20170284622A1 ## CPC - H01S 5/0087: {for illuminating phosphorescent or fluorescent materials, e.g. using optical arrangements specifically adapted for guiding or shaping laser beams illuminating these materials} - F21S 41/16: Laser light sources - F21S 41/176: Light sources where the light is generated by photoluminescent material spaced from a primary light generating element - F21S 41/265: Composite lenses; Lenses with a patch-like shape - F21S 41/285: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805} - F21S 41/365: successively reflecting the light - F21S 41/675: by moving reflectors - F21V 5/008: {Combination of two or more successive refractors along an optical axis} - F21V 9/30: Elements containing photoluminescent material distinct from or spaced from the light source (shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40) - F21V 14/04: by movement of reflectors {(in vehicle head lamps F21S41/675)} - G02B 19/0014: {at least one surface having optical power} - G02B 19/0047: {for use with a light source (G02B19/009, G02B19/0095 take precedence; details of lighting devices in general F21V; non-semiconductor lasers having optical devices external to the laser cavity H01S3/005)} - F21Y 2115/10: Light-emitting diodes [LED] - F21Y 2115/30: Semiconductor lasers - H01S 5/0071: {for beam steering, e.g. using a mirror outside the cavity to change the beam direction} - H01S 5/32341: {blue laser based on GaN or GaP} - H01S 5/4025: {Array arrangements, e.g. constituted by discrete laser diodes or laser bar (H01S5/42 takes precedence)} - H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract An illumination device for variable illumination in different spatial directions is provided. The illumination device includes a pump radiation unit, which has a pump radiation source for emitting pump radiation, a luminescent element for at least partial conversion of the pump radiation into illumination light, which is emitted in response to excitation with the pump radiation on an illumination light emission surface of the luminescent element, and optics which are assigned to the luminescent element and respectively direct illumination light ray bundles, which come from different positions of the illumination light emission surface and strike the optics on a luminescent material side, into a different spatial direction of the propagation on an illumination side opposite to the luminescent material side, The pump radiation unit is configured to respectively emit a pump ray bundle adjustably in different spatial directions, which pump ray bundles are coupled in on the illumination side. ## Claims ### Claim 1 An illumination device for variable illumination in different spatial directions comprising, a pump radiation unit, which has a pump radiation source for emitting pump radiation, a luminescent element for at least partial conversion of the pump radiation into illumination light, which is emitted in response to excitation with the pump radiation on an illumination light emission surface of the luminescent element, and optics assigned to the luminescent element for and respectively directing illumination light ray bundles striking the optics on a luminescent material side thereof from different positions of the illumination light emission surface, into a different spatial direction of a the propagation on an illumination side opposite to the luminescent material side wherein the pump radiation unit is configured to respectively emit a pump ray bundle adjustably in different spatial directions, which pump ray bundles are coupled in on the illumination side wherein the optics convert the angular distribution on the illumination side into a position distribution on the illumination light emission surface to permit adjustable excitation of different positions of the luminescent element. ### Claim 2 (depends on 1) The illumination device as claimed in claim 1, wherein the arrangement of the optics and the illumination light emission surface is telecentric on one side, and the optics respectively collimate per se the illumination light ray bundles coming from the different positions of the illumination light emission surface, the pump ray bundles respectively striking the optics on the illumination side while being collimated per se. ### Claim 3 (depends on 1) The illumination device as claimed in claim 1, wherein the optics are an exclusively refractive lens system. ### Claim 4 (depends on 1) The illumination device as claimed in claim 1, wherein the pump radiation unit has an input coupling mirror, via which the pump ray bundles are coupled in and which is to this end arranged in a beam path of the illumination light ray bundles. ### Claim 5 (depends on 4) The illumination device as claimed in claim 4, wherein the pump radiation unit has a deviating mirror, which a primary ray bundle emitted by the pump radiation source strikes and is deviated therefrom as a function of a mirror setting as one of the pump ray bundles. ### Claim 6 (depends on 5) The illumination device as claimed in claim 5, wherein the deviating mirror is arranged outside the beam path of the illumination light ray bundles, and the input coupling mirror is arranged after the deviating mirror as a part fixed in position and orientation in the beam path of the illumination light ray bundles. ### Claim 7 (depends on 6) The illumination device as claimed in claim 6, wherein the pump radiation unit has a relay lens system, which is arranged between the deviating mirror and the input coupling mirror ### Claim 8 (depends on 7) The illumination device as claimed in claim 7, wherein the relay lens system has an output lens, the input coupling mirror being arranged after the output lens at the focal point of the latter. ### Claim 9 (depends on 7) The illumination device as claimed in claim 7, wherein the relay lens system has an input lens, the deviating mirror being arranged before the input lens at the focal point of the latter. ### Claim 10 (depends on 5) The illumination device as claimed in claim 5, wherein a microscanner, which can be tilted in at least one axis, is provided as the deviating mirror. ### Claim 11 (depends on 4) The illumination device as claimed in claim 4, wherein the illumination device has a plurality of pump radiation units which share at least the input coupling mirror as a common element. ### Claim 12 A motor vehicle headlamp having an illumination device comprising, a pump radiation unit, which has a pump radiation source for emitting pump radiation, a luminescent element for at least partial conversion of the pump radiation into illumination light, which is emitted in response to excitation with the pump radiation on an illumination light emission surface of the luminescent element, and optics assigned to the luminescent element for and respectively directing illumination light ray bundles striking the optics on a luminescent material side thereof from different positions of the illumination light emission surface, into a different spatial direction of a propagation on an illumination side opposite to the luminescent material side, wherein the pump radiation unit is configured to respectively emit a pump ray bundle adjustably in different spatial directions, which pump ray bundles are coupled in on the illumination side, wherein the optics convert the angular distribution on the illumination side into a position distribution on the illumination light emission surface to permit adjustable excitation of different positions of the luminescent element. ### Claim 13 (depends on 12) The motor vehicle headlamp as claimed in claim 12, further comprising a detection unit is configured to detect a region that is accessible on the illumination side to the illumination light ray bundles. ### Claim 14 A method for using an illumination device for a motor vehicle headlamp comprising, emitting pump radiation by a pump radiation source of a pump radiation unit, exciting, by the pump radiation, an illumination light emission surface of a luminescent element, converting, at least partially, the pump radiation into illumination light by said excitation of the luminescent element, assigning optics to the luminescent element, and directing into different spatial directions of a propagation on an illumination side of the optics, respectively, illumination light ray bundles striking the optics, from different positions of the illumination light emission surface on a luminescent material side of the optics opposite the illumination side, wherein the pump radiation unit is configured to respectively emit a pump ray bundle adjustably in different spatial directions, which pump ray bundles are coupled in on the illumination side, wherein the optics convert the angular distribution on the illumination side into a position distribution on the illumination light emission surface to permit adjustable excitation of different positions of the luminescent element. ### Claim 15 (depends on 14) The method as claimed in claim 14 further comprising, illuminating, selectively, different spatial directions with the illumination light ray bundles by excitation of the different positions of the illumination light emission surface. ### Claim 16 (depends on 3) The illumination device as claimed in claim 3, wherein the exclusively refractive lens system consists of a multiplicity of spherical lenses.