摘要:
A lighting element (100), a lighting system and a luminaire are provided. The lighting element (100) is used for obtaining a skylight appearance and comprises a white light emitting means (104) for emitting white light, a blue light emitting means 106 for emitting blue light and a Fresnel lens (102). The Fresnel lens (102) is arranged to receive light from the white light emitting means (104) and from the blue light emitting means (106). The white light emitting means (104) is arranged in a first relative position with respect to the Fresnel lens (102) to collimate at least a part of the light emitted by the white light emitting means (104) to obtain a collimated directed light beam in a specific direction. The blue light emitting means (106) is arranged in a second relative position with respect to the Fresnel lens (102) to obtain a blue light emission at least outside the collimated directed light beam.
摘要:
A light-emitting device which has a plate-shaped light guide (102) having front and rear surfaces (106, 108), being major surfaces, and edge surfaces (110, 112, 114, 116); and a light source (104) arranged at the plate-shaped light guide at such a position that the generated light is entered into the plate-shaped light guide and propagates in a substantial direction of propagation that is parallel with the front surface. At least a portion of the plate-shaped light guide includes a three-dimensional surface structure (118) arranged to provide a controlled light output through at least one of the front and rear surfaces and at least one of the edge surfaces. The controlled light output is controlled in terms of light output characteristics.
摘要:
A device (100, 200, 300, 400, 500) including an ambient image light source (110, 210, 310) and a stacked plurality of ambient imaging light guides (120, 220, 320) The ambient image light source (110, 210, 310) is arranged to couple light into the stacked light guides (120, 220, 320). The stacked light guides (120, 220, 320) are arranged to couple out corresponding ambient image light portions onto a reflective surface (130, 230). The stacked light guides (120, 220, 320) may be arranged to provide the ambient image light portions extending outward from the device (100, 200, 300, 400, 500) such that a first one of the ambient image light portions extends substantially outward from a second one of the ambient image light portions. The second one of the ambient image light portions may be projected closer to the device (100, 200, 300, 400, 500) and may be projected to reflect brighter than the first one of the ambient image light portions.
摘要:
The invention relates to an array of light generators where each light generator comprises reflecting collimation optics in the form of curved mirrors for collimating light emitted by light sources such as surface mounted Light Emitting Diodes. The collimation optics is formed to collimate light in a direction parallel with a plane, e.g. a printed circuit board, onto which the light sources are mounted. The light sources may emit light parallel with the direction of collimation or non-parallel, e.g. perpendicular, with the direction of collimation in which case the collimation optics redirects the light rays from the light source. The array of light generators can be used in combination with a television display for creating a pixelated image appearing to the viewer as an image peripherally surrounding the display.
摘要:
A device for guiding and mixing light comprising of a light guide, at least a first set of light emitting elements in a first layer and at least a second set of light emitting elements in a second layer. Each of the light emitting elements being arranged to emit light of at least a first predetermined frequency. The second layer extending in a second geometrical plane different from a first geometrical plane of the first layer for producing a uniform light output from the aggregate of the constituting frequencies.
摘要:
The invention relates to a light emitting device comprising a light emitting element (100) and a light guide (101) arranged on a textile substrate (102). The light guide has a back surface (103) facing the textile substrate, a front surface (104) facing away from the substrate, and a light receiving surface (105). The light emitting element (100) is arranged such that at least part of the light emitted by the light emitting element (100) is coupled into the light guide (101) through the light receiving surface (105), and is subject to total internal reflection in the light guide (101). Furthermore, the light guide (101) is arranged such that at least part of the light coupled into the light guide (101) exits the light guide (101) through the front surface (104) and/or the back surface (103). By arranging a light guide in conjunction with a light emitting element, the emitted light is distributed within the light guide and exits the light guide from an area that is larger than that of the light emitting element. Hence, a larger portion of the textile substrate can be made luminous without the need for using a more dense pattern of light emitting elements.
摘要:
An electronic paint for an electrophoretic display includes a lower conductive layer, a thermal addressing layer disposed on the lower conductive layer, a layer of electrophoretic ink disposed on the thermal addressing layer, and an upper conductive layer disposed on the electrophoretic ink. Activation of the electrophoretic ink is based on thermal absorption of thermal radiation in a portion of the thermal addressing layer and a bias voltage applied between the upper conductive layer and the lower conductive layer.
摘要:
A lighting element 100, a lighting system and a luminaire are provided. The lighting element 100 is used for obtaining a skylight appearance and has a white light emitting means 104 for emitting white light, a blue light emitting means 106 for emitting blue light and a Fresnel lens 102. The Fresnel lens 102 is arranged to receive light from the white light emitting means 104 and from the blue light emitting means 106. The white light emitting means 104 is arranged in a first relative position with respect to the Fresnel lens 102 to collimate at least a part of the light emitted by the white light emitting means 104 to obtain a collimated directed light beam in a specific direction. The blue light emitting means 106 is arranged in a second relative position with respect to the Fresnel lens 102 to obtain a blue light emission at least outside the collimated directed light beam.
摘要:
A device is disclosed for wireless control of color of light emitted by a lighting system. The lighting system comprises signal receiving means and means for adjusting the color of light emitted from at least one lighting element, in response to a received color control signal from the device. The device for wireless control comprises means for—generating color information data, said data being indicative of a desired color of light to be emitted by the lighting system, means for modulating a first carrier signal in accordance with the color information data, and means for transmitting said color control signal in the form of a beam of said first modulated carrier signal to the lighting system.
摘要:
A device is disclosed for wireless control of color of light emitted by a lighting system. The lighting system comprises signal receiving means and means for adjusting the color of light emitted from at least one lighting element, in response to a received color control signal from the device. The device for wireless control comprises means for—generating color information data, said data being indicative of a desired color of light to be emitted by the lighting system, means for modulating a first carrier signal in accordance with the color information data, and means for transmitting said color control signal in the form of a beam of said first modulated carrier signal to the lighting system.