摘要:
The present invention relates to lighting device (10). The lighting device comprises a light guide plate (12), and at least one array of light emitting diodes (LEDs) (14), which LEDs are accommodated in holes arranged in the light guide plate, wherein each hole has: at least two side facets (18) through which light from the LEDs is to be laterally coupled into the light guide plate, and at least one corner (20) formed by two converging side facets of the at least two side facets. This promotes TIR at adjacent light sources and therefore diminishes losses due to absorption or scattering at adjacent holes.
摘要:
The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat light guide (200), arranged to collimate light source light (111). The light guide (200) has an entrance window (210), an edge window (220), a first light guide surface (201), a second light guide surface (202), a first side edge (230) and a second side edge (240). One or more of the first light guide surface (201) and the second light guide surface (202) comprise a plurality of grooves (300). In this way, latitudinal collimation is obtained.
摘要:
The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat collimator (200), arranged to collimate light source light (111). The collimator (200) has an entrance window (210), an edge window (220), a top collimator surface (201), a bottom collimator surface (202), a first collimating side edge (230) and a second collimating side edge (240). The lighting unit has an optical axis (O). One or more of the top collimator surface (201), the bottom collimator surface (202), the first collimating side edge (230) and the second collimating side edge (240) comprise n*½ grooves (300), wherein n is a positive integer number, and wherein the grooves (300) independently have a longitudinal axis (301) having a groove direction angle (ω) with the optical axis (O) ≧0° and & and
摘要:
The invention provides a method of illuminating a 3D object 10 with a modified 2D image of the 3D object 10. Further, the invention provides a dedicated projector 40 for performing this method. This projector 40 further comprises an image sensor 60 to capture a 2D image of the object, which may, after modification into the modified 2D image, be projected by the projector 40 on the 3D object 10.
摘要:
A luminaire comprises a light guiding layer (2) and a plurality of LEDs (7), which LEDs (7) are accommodated in at least one hole (10) arranged in the light guiding layer (2), for emitting light into the light guiding layer (2). The light guiding layer (2) further comprises at least one out-coupling structure (5; 6), for coupling the light out of the light guiding layer (2).
摘要:
The present invention relates to lighting device (10). The lighting device comprises a light guide plate (12), and at least one array of light emitting diodes (LEDs) (14), which LEDs are accommodated in holes arranged in the light guide plate, wherein each hole has: at least two side facets (18) through which light from the LEDs is to be laterally coupled into the light guide plate, and at least one corner (20) formed by two converging side facets of the at least two side facets. This promotes TIR at adjacent light sources and therefore diminishes losses due to absorption or scattering at adjacent holes.
摘要:
The invention describes a method of controlling the colour of the light output of a lamp (1), which method comprises electronically collecting colour data pertaining to a first colour (C1) to obtain a first colour description (D1), electronically collecting colour data pertaining to a second colour (C2) to obtain a second colour description (D2), and combining the first colour description (D1) with the second colour description (D2) to obtain a target colour description (DT). The target colour description (DT) is transferred to a control unit (4) of the lamp (1), and the lamp (1) is driven according to the target colour description (DT) to give a target colour light output. The invention also relates to a system (3) for controlling the colour of the light output of a lamp. Furthermore, the invention relates to a colour data collection device (2) for use in a system (3) for controlling the colour of the light output of a lamp (1), which colour data collection device (2) comprises a colour detector (20) for electronically converting captured light (Lr, Lsp) into colour data pertaining to a colour (C1, C2), a conversion unit (21) for translating the colour data pertaining to a colour (C1, C2) into a corresponding colour description (D1, D2), a combining unit (22) for combining a first colour description (D1) with a second colour description (D2) to obtain a target colour description (DT), and a transfer interface (23) for transferring the target colour description (DT) to a control unit (4) of the lamp (1).
摘要:
The present invention relates to a lighting system (1) with a user interface (3) for controlling the lighting color and/or intensity of a lighting unit (2) determining the lighting conditions in a room. The user interface (3) is based on a system comprising a detection device (4) and transponders (6). Bringing the transponders (6) within the detection device (4) so that they will be detected causes the transponders (6) to send a response signal, which signal controls the lighting color and/or intensity of the lighting unit (2). Each transponder (6) is programmed to control a particular color or a specific light intensity.
摘要:
An optical separating filter separates impinging light into a first and a second part having different properties. The separating filter comprises reflective filters (FR) arranged in funnel shaped structures (F1). Each one of the structures (F1) have an inlet area (IA1) to receive the impinging light (IL) and an outlet area (OA1) smaller than the inlet area. (IA1) to converge reflected impinging light (RL) towards the outlet area (OA1). The structures (F1) comprise a first group of funnel shaped structures (F1) constructed to reflect light which has a first property (C1) towards their respective first outlet areas (OA1) and for transmitting light which has a second property (C2) towards respective second outlet areas (OA2).
摘要:
Projection system comprising at least two light sources, a projection lens and a spatial light modulator located between the light sources and the projection lens, which light modulator comprises a plurality of light-deflection devices each provided with an element which is tiltable about a tilt axis. The light sources are arranged with respect to the spatial light modulator in such a way that, in operation, the centers of the light beams coming from the light sources and projected on each element are located on a projection line which extends substantially parallel to the tilt axis of the element.