Abstract:
A radiation guide system is described for guiding radiation. The radiation guide system(10) comprises a plurality of distinct radiation guide segments (13). These are arranged for receiving radiation and for coupling out at least part of the radiation through a surface of the radiation guide segments. The radiation guide segments (13) are connected to each other so as to be moveable with respect to each other and so as to construct a single radiation guide system.
Abstract:
A method of biostimulating phototherapy is provided. The method comprises illuminating a subject's body portion (1) with light having a first wavelength in the range of 600-900 nm (17). The method further comprises the step of at least one of reducing and preventing hyperthermia of the body portion by illuminating the body portion with light having a second wavelength which is at least one of in the range of 400-600 nm and in the range of 900-2500 nm (19). Further, a phototherapy device (21) is provided which comprises a first light source (25) and a second light source (26). The first light source is configured to emit light (17) having a first wavelength which is in the range of 600-900 nm. The second light source is configured to emit light (19) having a second wavelength which is at least one of in the range of 400-600 nm and in the range of 900-2500 nm. At least a portion of the device is a patch which is formed for conforming to at least part of the body portion (1). The device further comprises a sensor (29) for sensing at least one skin property and a controller (31) configured to operate at least the second light source as a function of the determined skin property.
Abstract:
A light mixing module (3) for receiving light from a first set of light sources (4) and a second set of light sources (5), said light mixing module comprising: -an annular light guiding element (11), said annular light guiding element having an inner edge (13), a peripheral edge (12), a first intermediate surface (15) extending between said inner and peripheral edges and arranged to face said light sources, and a second intermediate surface (16) extending between said inner and peripheral edges opposite said first intermediate surface, wherein said inner edge (13) defines a cavity (18) with an opening arranged to face said light sources, wherein said opening is arranged to receive light from said first set of light sources (4) and said first intermediate surface (15) is arranged to receive light from said second set of light sources (5); and -a first reflective surface (17) arranged to close said cavity in an end opposite said opening so as to form a first mixing chamber (18), wherein said annular light guiding element (11) and said first reflective surface (17) is arranged in such a way that light entering via said opening is mixed in said first mixing chamber (18), coupled into said annular light guiding element (11) through said inner edge (13), guided through the annular light guiding element (11) in a radial direction by means of total internal reflection and coupled out through the peripheral edge (12), and light received by said first intermediate surface (15) is guided through said light guiding element (11) by means of total internal reflection and out-coupled through said second intermediate surface (16)..
Abstract:
The invention provides a multi-beam illumination system (1) for providing an illumination image (53). The multi-beam illumination system (1) has a plurality of light sources (11) with optional collimating optics (12), arranged to generate a plurality of light beams (13); a panel (30) comprising a plurality of panel segments (32) in a panel plane (35) at a first distance (dl) and arranged to contain a plurality of segment patterns (34) on the corresponding panel segments (32); and an imaging lens array (40) comprising a plurality of imaging lenses (42) in an imaging lens plane (45) parallel to the panel plane (35). Each imaging lens (42) of the imaging lens array (40) is arranged to image a corresponding segment pattern (34) of the plurality of segment patterns (34) into a respective projection image (52) of a plurality of projection images (52). The plurality of projection images (52) overlap at a predetermined image distance (Lp) and form the illumination image (53).
Abstract:
The present invention relates to a lamp unit (10), comprising: a lamp base (12); at least one first light source (16, 26, 64) adapted to emit first light having a first wavelength spectrum; and at least one second light source (14, 38, 40, 62) adapted to emit second light having a second wavelength spectrum different from the first wavelength spectrum, wherein the lamp unit is arranged so as to emit the first light in at least one certain 5 direction and the second light in at least one other direction. The present invention also relates to aluminaire (74, 78) comprising at least one such lamp unit (10).
Abstract:
The present invention relates to a compartment provided a tufted textile (100) comprising: a backing (10), and yarns (40) forming tufts extending from a first side of the backing, the compartment further comprising a light source (50; 80) and a conductor arrangement (60) for the light source, wherein the light source, the conductor arrangement and the backing are arranged so as to radiate light from the light source at least partly through the backing, the backing being substantially permeable to light. The tufted textile (100) may be a carpet.
Abstract:
The present invention relates to a lighting device (10). The device comprises a light guide plate (12), and at least one array (14) of light emitting diodes (LEDs) (16), which LEDs are accommodated in holes (20) arranged in the light guide plate. The device is characterized by an array (24) of lenses (26) arranged such that light emitted by the LEDs passing the lens array is at least partly directed towards areas (28) of the light guide plate free from holes.
Abstract:
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).
Abstract:
The invention relates to a plasma picture screen with a powder layer (8) in the plasma cells, which layer has a low dielectric constant K and thus reduces the discharge capacitance in the plasma cell. Such a plasma picture screen has an enhanced efficiency and an enhanced luminance.