Light having a non-uniform light emission
AssigneeSiteco Beleuchtungatechnik GmbH
InventorPeter Prodell
Life of this patent
Estimating the term…
Abstract
A lighting fixture that has a plurality of differently fashioned regions wherein different light emission properties occur. The fixture includes at least one hollow light guide having a cavity, one or more bulbs that emit light into the cavity of the hollow light guide, and at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face. The light output device forms at least a part of the wall of the hollow light guide and the light of at least one bulb that directs light into the hollow light guide is beamed out in different regions of the lighting fixture that have different light emission properties.
Claims37
A lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device comprising a plurality of components having different light-refractive structures and forming at least a part of a wall of the hollow light guide and the fixture having a plurality of differently fashioned regions having different light emission properties.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide, and light of the at least one lamp being directed into the hollow light guide and being directed out of the different regions of the lighting fixture having the different light emission properties, said lighting fixture comprising at least two wall regions being positioned along a lamp axis and extending opposite the light output device and each of said wall regions having a reflective wall with a different structure, so that the reflective wall of one of the at least two wall regions reflects the light of the lamp onto the output device differently than the reflective wall of the other of the at least two wall regions.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and light of the at least one lamp being directed into the hollow light guide and being directed out of the different regions of the lighting fixture having the different light emission properties and comprising at least two regions having a reflective wall extending opposite the light output device, in a first region, the reflective wall being directed relative to the lamp so that the light incident onto the reflective wall from the lamp is incident essentially at a surface facing toward the cavity and is reflected into the cavity, and, in a second region, the light of the same lamp incident onto the reflective wall of the second region is reflected at least partially onto a side facing away from the cavity and is reflected away from the cavity for output as an indirect light part.
A lighting fixture have a plurality of differently fashioned regions having different light emission properties, said lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide, and the light exit face comprising a first region having a first average luminous intensity and a second region adjoining the first region and having a second average luminous intensity that is lower than the first average luminous intensity.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide, the light exit face having a first region and a second region adjoining the first region, and coloring means so that the emerging light of the second region has a different color than that in the first region and the light of the at least one lamp is directed out of the different regions of the lighting fixture.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide, the lighting fixture having a plurality of regions having different light emission properties, wherein the longitudinal axis of said lamp is transverse to said regions.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp the emits light into the cavity of the hollow light guide, the at least one lamp being a straight lamp, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and the light output device including a first region having first light-refractive structure and a second region having a second light refractive structure different from the first light refractive structure, said first region at least partly surrounding the second region so that light of the at least one lamp is directed out of the different regions of the lighting fixture.
A lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and the fixture having a plurality of differently fashioned regions having different light emission properties, said plurality of differently fashioned regions of said fixture comprising a plurality of differently fashioned regions of the hollow light guide so that light being directed out of different regions of the lighting fixture have different light emission properties and the light emitted at the light exit face of the lighting fixture in a first region has a symmetrical light intensity distribution curve and in a second region has an asymmetrical light intensity distribution curve.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and light of the at least one lamp being directed into the hollow light guide and being directed out of the different regions of the lighting fixture having different light emission properties, wherein the longitudinal axis of said lamp is transverse to said regions.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and light of the at least one lamp being directed into the hollow light guide and being directed out of the different regions of the lighting fixture having different light emission properties, wherein said light output device comprises a sub-region having no light-refractive structure that deflects the passing light in a directed fashion so that an element that limits one of the luminous intensity or color is effective.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and light of the at least one lamp being directed into the hollow light guide and being directed out of the different regions of the lighting fixture having different light emission properties, and a reflective wall extending opposite the light output device, said wall having wall regions positioned along a direction extending along an axis of the lamp, said wall regions having different inclinations relative to each other, wherein the lamp directs light only at part of the wall regions of the reflective wall.
A lighting fixture having a plurality of differently fashioned regions having different light emission properties, said fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide and light of the at least one lamp being directed into the hollow light guide and being directed out of the different regions of the lighting fixture having different light emission properties, wherein said plurality of differently fashioned regions of said fixture comprises a plurality of differently fashioned regions of the hollow light guide and the light being emitted through the light output device has different properties in different regions.
A lighting fixture comprising at least one hollow light guide having a cavity, at least one lamp that emits light into the cavity of the hollow light guide, at least one light output device having a light-refractive structure for outputting light from the cavity of the hollow light guide to a light exit face, the light output device forming at least a part of a wall of the hollow light guide, said hollow light guide and said light output device forming a plurality of differently fashioned regions having different light emission properties for directing light of the at least one lamp out of said fixture having different lighting characteristics when observed from different locations relative to said fixture.
Dependencies are inferred from the claim text.