# US 7,465,070 B2 · Illumination device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,465,070 B2 - Document ID: US7465070B2 - Status: Granted - Kind: B2 - Application number: 10/584,706 - Filed: 2004-11-26 - Published: 2008-01-31 - Granted: 2008-12-16 - Earliest claimed: 2003-12-23 - Inventors: Hartmut S. Engel - Web page: https://patentgrep.com/patent/US7465070B2 ## CPC - F21V 9/08: for producing coloured light, e.g. monochromatic; for reducing intensity of light (with provision for controlling the colour F21V9/40) - F21S 2/00: Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction - F21V 3/00: Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) - F21V 7/0016: {on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes} - F21V 7/0025: {Combination of two or more reflectors for a single light source (array of reflectors for a cluster of light sources F21V7/0083)} - F21V 7/005: {with an elongated shape to cooperate with linear light sources} - F21V 14/04: by movement of reflectors {(in vehicle head lamps F21S41/675)} - F21V 17/02: with provision for adjustment (F21V17/04 - F21V17/08 take precedence) - F21S 8/02: of recess-mounted type, e.g. downlighters (specially adapted for vehicle exteriors F21S41/00-F21S45/00) - F21V 21/30: Pivoted housings or frames - F21Y 2103/00: Elongate light sources, e.g. fluorescent tubes - F21Y 2103/37: U-shaped - F21Y 2113/00: Combination of light sources - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 The invention relates to an illumination device which comprises a plurality of downlight reflectors (1) that are impinged upon by illumination means and that have respective front reflector openings (2) pointing in the direction of illumination. The invention is characterized in that at least two downlight reflectors can be impinged upon by a common illumination means (5) via respective rear reflector openings. ## Claims ### Claim 1 A lighting device comprising a plurality of downlight reflectors (1) which are illuminated by an illuminant and which each have a front reflector opening disposed in the direction of illumination, wherein at least two downlight reflectors (1) can be illuminated by a common illuminant (5, 5″) via a respective rear reflector opening, wherein the front reflector openings (2) define direct light discharge regions (8), which are surrounded at least regionally by at least one diffuse light discharge region (7), and wherein the diffuse light discharge regions (7) can be illuminated directly by sections of the common illuminant (5, 5″) disposed outside the rear reflector openings (3). ### Claim 2 (depends on 1) A lighting device in accordance with claim 1, wherein the downlight reflectors (1) illuminated by the common illuminant (5, 5″) in each case represent separate units not directly connected to one another. ### Claim 3 (depends on 1) A lighting device in accordance with claim 1, wherein the reflector openings (2) of the front downlight reflectors (1) disposed in the direction of illumination have an at least substantially point-symmetrical shape, in particular a circular shape, to the center of the opening (2). ### Claim 4 (depends on 1) A lighting device in accordance with claim 1, wherein the downlight reflectors (1) each have a dome or cupola shape open at both sides. ### Claim 5 (depends on 1) A lighting device in accordance with claim 1, wherein the downlight reflectors (1) illuminated by the common illuminant (5, 5″) are arranged, including the illuminant (5, 5″), in a common housing (14). ### Claim 6 (depends on 1) A lighting device in accordance with claim 1, wherein at least two downlight reflectors (1) are illuminated by a plurality of common illuminants (5″). ### Claim 7 (depends on 6) A lighting device in accordance with claim 6, wherein the plurality of common illuminants (5″) have color shades different from one another. ### Claim 8 (depends on 7) A lighting device in accordance with claim 7, wherein three common illuminants (5″) are provided which have the color shades red, green and blue. ### Claim 9 (depends on 6) A lighting device in accordance with claim 6, wherein the illuminants (5, 5″) are made as fluorescent tubes. ### Claim 10 (depends on 1) A lighting device in accordance with claim 1, wherein the downlight reflectors (1) are held pivotally, in particular jointly pivotally, in a housing (14). ### Claim 11 (depends on 10) A lighting device in accordance with claim 10, wherein the downlight reflectors (1) are held pivotally in the housing (14) together with the illuminant (5, 5″) illuminating them, with additional wall elements (9, 10, 12) through which scattered light passes in particular becoming visible with outwardly pivoted downlight reflectors (1). ### Claim 12 (depends on 1) A lighting device in accordance with claim 1, wherein the reflector openings (2) defining the direct light discharge regions (8) are each associated with direct light reflectors (1) on whose side remote from the respective direct light discharge region (8) an additional reflector or background reflector is provided. ### Claim 13 (depends on 12) A lighting device in accordance with claim 12, wherein a light passage region is formed between the additional reflector (15) and the direct light reflector (1). ### Claim 14 (depends on 12) A lighting device in accordance with claim 12, wherein the additional reflector (15) is formed at least partly by at least one planar reflector surface or one presettably—in particular rotationally symmetrically—curved reflector surface or one kinked reflector surface which ensures a presettable division of the portion of the reflected light guided to the direct light discharge region (8) and to the diffuse light discharge region (7). ### Claim 15 (depends on 1) A lighting device in accordance with claim 1, wherein the illuminant (5, 5″) and the direct light reflectors (1) are arranged in a housing (14) which is in particular lightproof and/or dust-proof and whose inner surface is made at least regionally as an additional reflector (15). ### Claim 16 (depends on 1) A lighting device in accordance with claim 1, wherein the direct light reflectors (1) are made specularly reflecting or diffusely reflecting at their outer sides. ### Claim 17 (depends on 1) A lighting device in accordance with claim 1, wherein a housing is terminated in an at least largely dustproof manner by a scattering plate in the region of the diffuse light discharge region (7) and by an in particular transparent plate (6) in the region of the direct light discharge regions (8). ### Claim 18 (depends on 1) A lighting device in accordance with claim 1, further comprising a common housing (14) that is made to be covered by one of a scattering plate and an element having openings, in particular a perforated plate, in the region of the diffuse light discharge region (7) and is made to be open in the region of the direct light discharge region (8). ### Claim 19 (depends on 1) A lighting device in accordance with claim 1, wherein the diffuse light discharge regions (7) of a plurality of downlight reflectors (1)are formed by a common rectangular scattering plate. ### Claim 20 (depends on 19) A lighting device in accordance with claim 19, wherein the common rectangular scattering plate is made integrally with a transparent plate (6) terminating the front reflector openings.