摘要:
It is presented an optical component (5) a first side (30) and a refractive opposite side (14). The refractive side (14) presents a refractive surface (13) and has radially extending refractive structures (6) for refracting light mainly in the azimuth direction (27) of an inciding light beam. The optical component (5) can be used as an exit window in a luminaire (1) having at least one light source (4), whereby light inhomogeneity may be reduced.
摘要:
It is presented an optical component (5) a first side (30) and a refractive opposite side (14). The refractive side (14) presents a refractive surface (13) and has radially extending refractive structures (6) for refracting light mainly in the azimuth direction (27) of an inciding light beam. The optical component (5) can be used as an exit window in a luminaire (1) having at least one light source (4), whereby light inhomogeneity may be reduced.
摘要:
A light-output system (1), for forming a controllable pattern (10) of illuminated spots (11a-b) in a distant projection plane (3). The light-output system (1) comprises a plurality of individually controllable light-output devices (6a-c) arranged in an array (5) of light-output devices with a light-output device pitch (PLS), and an optical system (7) arranged between the array (5) of light-output devices and the projection plane (3). The optical system (1) is configured to project light emitted by the array (5) of light-output devices in the projection plane (5) as a projected array of illuminated spots (11a-c) having a projection pitch (Pspot) that is larger than the light-output device pitch (PLS). Using this light-output system, practically all of the luminous power output by the light-output devices is used for projecting the light patterns.
摘要:
Light-emitting devices (100) and methods for operating light-emitting devices are disclosed. Each of the light-emitting devices (100) comprises a plurality of light sources (112A-112F) for illuminating a target (120), wherein each of the light sources is configured to emit light within a predetermined color range. Each of the light-emitting devices comprises means (140) for automatically adjusting the spectral power distribution of light-emitted by the light-emitting device on basis of the color of the target or a region of the target illuminated by the light-emitting device, such that light emitted by the light-emitting device is made increasingly compliant or even compliant with a criteria of a predetermined color characteristics.
摘要:
It is provided a luminaire kit of parts (100) for assembling a luminaire. The luminaire kit of parts (100) comprises light sources (107a-b) and light out-coupling devices (105a-b), The luminaire kit of parts (100) further comprises a light guiding element (101), the light guiding element (101) being configured to receive at least a subset of the light sources (107a-b) and at least a subset of the light out-coupling devices (105a-b) into a first type of 5 openings (103a-c) and a second type of openings (104a-b) respectively. It is also provided a method for assembling a luminaire.
摘要:
The invention relates to a light source and an illumination system. The light source (10) comprises a light emitter (20) and a light conversion element (30). The light emitter emits visible light of a first color through the light conversion element in a direction away from the light source. The light conversion element comprises a photoluminescent material (40) for converting at least a part of the light of the first color into light of a second color different from the first color. The light source further comprises conversion material (42) for converting at least a part of ambient light impinging on the conversion material into light of a third color (Ba) different from the second color. When the light emitter emits light, the color of the light emitted is mainly a mixture of the light of the first color and light of the second color. When the light emitter does not emit light, the color of the light emitted by the light source is determined by the reflected ambient light, light of the second color and light of the third color. As such, the color of the light source can be tuned when the light emitter does not emit light and can, for example, be made substantially identical to the color of the light emitted when the light emitter emits light.
摘要:
The present invention relates to an illumination system (10, 50) for a projection display device. The system comprises an integrator arrangement (14, 58) having at least one entrance aperture (16, 64), a light source (24, 54), and means (26, 56, 61) for directing light from the light source towards the at least one entrance aperture. The illumination system is characterized by a retro-reflector (34, 66) being arranged directly adjacent to said at least one entrance aperture. One advantage offered by the invention is that the efficiency of use of lumen output from the light source is increased. The invention also relates to a projection display device (80) comprising such illumination system.
摘要:
A light collimation device comprising a wave guide plate (100) having a first surface (101), an opposing faceted second surface (102) comprising a plurality of essentially planar parallel portions (103) and a plurality of facets (104) connecting said planar parallel portions (103) and at least one surface (105) for receiving light is provided. Each facet (104) is formed at a non-right angle (β) to said planar parallel portions (103) and the device further comprises a plurality of collimating refractive elements (106), wherein each collimating refractive element (106) corresponds to a separate one of the plurality of facets (104), and is located in the beam path of at least the major part of light being reflected on the corresponding facet (104) and extracted from said wave guide plate (100).
摘要:
The invention relates to an illumination module (1) comprising a plurality of light sources (2) distributed over a light guiding plate (3) accommodating said light sources and capable of guiding light of said light sources through at least a portion of said plate. The light guiding plate has one or more out-coupling structures (4), preferably arranged around each light source, so that at least a portion of the light emitted by a first light source (2A) and at least a portion of the light emitted by a second adjacent light source (2B) mix within said light guiding plate before leaving said illumination module as a single substantially collimated mixed light beam. The invention further relates to a lamp and a display apparatus comprising such an illumination module.
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.