摘要:
There is provided a lighting device (100) comprising at least one light source for providing light, a envelope encompassing said light source, a base to which said envelope is engaged, and a control means for adjusting the lighting settings of said lighting device. The control means are arranged for detecting a position in relation to the base of a point of reference being movably arranged on the lighting device. The lighting settings are adjusted in response to the detected position.
摘要:
The present invention relates to alight-emitting panel (1) comprising: a first panel sheet (11), the first panel sheet being optically transparent; a second panel sheet (12); and a cellular support panel (10) sandwiched between the first panel sheet and the second panel sheet. The cellular support panel comprises optically transparent cell walls (13) defining a plurality of tubular channels (14) extending from the first panel sheet towards the second panel sheet. The light-emitting panel (1) further comprises a two-dimensional light-source array (15;16;24;27) comprising a plurality of light-sources (18a-b;19a-b) each being arranged to emit light into at least one of the tubular channels of the cellular support panel. Various embodiments of the present invention provide a cost-efficient light-emitting panel with advantageous light-emission and mechanical properties.
摘要:
An optical element (100) for use in front of a light source (102) for obtaining a skylight appearance, a lighting system and a luminaire are provided. The optical element (100) comprises a light transmitting cell which comprises a light transmitting channel (116), a light input window (106), a light exit window (110) and a wall (108). The light transmitting channel (116) collimates a part of light (104) emitted by the light source (102). The light input window (106) is arranged at a first side of the light transmitting channel (116) and receives light (104) from the light source (102). The light exit window (110) emits light with the skylight appearance. At least a part of the light exit window (110) is arranged at a second side of the light transmitting channel (116) opposite to the first side. The wall (108) is interposed between the light input window (106) and the part of the light exit window (110). The wall (108) encloses the light transmitting channel (116). At least a part of the wall (108) is reflective and/or transmissive in a predefined spectral range to obtain a blue light emission at relatively large light emission angles with respect to a normal to the part of the light exit window (110).
摘要:
The invention relates to a light-guide (100), an illumination system (200), a luminaire (400), a scanning backlight system (200) and a display device. The light-guide comprises a plurality of light-guide segments (10), each light-guide segment being substantially optically separated from a neighboring light-guide segment. Each light-guide segment comprises light-extraction means (40) for extracting at least part of the distributed light via a front wall (20) to illuminate in operation a light output window (220). A distance (D) between the front wall and the light output window being smaller at a center (C) of the front wall compared to a predefined edge (50) of the front wall. The predefined edge of the front wall is an edge at which the light-guide segment is arranged adjacent to the neighboring light-guide segment. An effect of the light-guide according to the invention is that the increased distance at the predefined edge of the front wall between the front wall and the light output window reduces local variations in intensity and/or color and/or distribution of the light due to mixing of the light before the light impinges on the light-output window.
摘要:
The present invention relates to alight-emitting panel (1) comprising: a first panel sheet (11), the first panel sheet being optically transparent; a second panel sheet (12); and a cellular support panel (10) sandwiched between the first panel sheet and the second panel sheet. The cellular support panel comprises optically transparent cell walls (13) defining a plurality of tubular channels (14) extending from the first panel sheet towards the second panel sheet. The light-emitting panel (1) further comprises a two-dimensional light-source array (15;16;24;27) comprising a plurality of light-sources (18a-b;19a-b) each being arranged to emit light into at least one of the tubular channels of the cellular support panel. Various embodiments of the present invention provide a cost-efficient light-emitting panel with advantageous light-emission and mechanical properties.
摘要:
There is provided a lighting device (100) comprising at least one light source for providing light, a envelope encompassing said light source, a base to which said envelope is engaged, and a control means for adjusting the lighting settings of said lighting device. The control means are arranged for detecting a position in relation to the base of a point of reference being movably arranged on the lighting device. The lighting settings are adjusted in response to the detected position.
摘要:
An optical element for use in front of a light source for obtaining a skylight appearance, a lighting system and a luminaire are provided. The optical element comprises a light transmitting cell which comprises a light transmitting channel, a light input window, a light exit window and a wall. The light transmitting channel collimates a part of light emitted by the light source. The light exit window emits light with the skylight appearance. At least a part of the light exit window is arranged at a second side of the light transmitting channel opposite to the first side. The wall is interposed between the light input window and the part of the light exit window. The wall encloses the light transmitting channel. At least a part of the wall is reflective and/or transmissive in a predefined spectral range to obtain a blue light emission at relatively large light emission angles with respect to a normal to the part of the light exit window.
摘要:
An optical element, a lighting system and a luminaire is provided. The optical element comprises a plate 100 and a plurality of collimating means. The optical element is to be used in front of a light source comprising a light emitting surface 106, and the optical element is configured to obtain a skylight appearance. The plate 100 is to be arranged parallel to the light emitting surface 106. The plate 100 is opaque and comprises a plurality of holes 104. The plate 100 further comprises a reflective surface 102 which is to be arranged parallel to the light emitting surface 106. The reflective surface 102 is light reflective in a predetermined spectral range to obtain a blue light emission 100. The plurality of collimating means collimate a part of the light received from the light source to obtain a collimated light beam 112 in a specific direction. Each one of the collimating means comprises one of the plurality of holes of the plate 104.
摘要:
A lighting system for providing a daylight appearance and a luminaire are provided. The lighting system comprises a plurality of light emitters and a plurality of optical elements. Said plurality of light emitters emit a wide light beam. Each optical element of at least a subset of the plurality of optical elements is related to a light emitter of the plurality of light emitters, thereby forming a pair. For each pair it applies that if a light emitter of a pair is arranged in a first relative position with respect to the optical element of said pair, the light emitter and the optical element are configured to emit the wide light beam, and if the light emitter of the pair is arranged in a second relative position with respect to the optical element of said pair, the optical element is configured to collimate a portion of the wide light beam to obtain a collimated light beam, and the optical element is configured to absorb another portion of light of the wide light beam in a predefined spectral range to obtain a blue light emission at light emission angles at least outside the collimated light beam.
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.