Abstract: A light-emitting device (100) is disclosed. The light-emitting device (100) comprises a plurality of light-emitting elements (135) or light sources and a power module (120) adapted to selectively convey, supply or provide electrical power to the light-emitting elements (135). The power module (120) may be dimensioned such as to be able to power only a proper subset of the light-emitting elements (135) of the light-emitting device (100) at a given time, the subset having a maximum number of light-emitting elements (135) included therein with respect to the number of light-emitting elements (135) included in the all subsets of the light-emitting elements (135) of the light-emitting device (100).

Abstract: A light-emitting device (100) is disclosed. The light-emitting device (100) comprises a plurality of light-emitting elements (135) or light sources and a power module (120) adapted to selectively convey, supply or provide electrical power to the light-emitting elements (135). The power module (120) may be dimensioned such as to be able to power only a proper subset of the light-emitting elements (135) of the light-emitting device (100) at a given time, the subset having a maximum number of light-emitting elements (135) included therein with respect to the number of light-emitting elements (135) included in the all subsets of the light-emitting elements (135) of the light-emitting device (100).

Abstract: A method of biostimulating phototherapy is provided. The method comprises illuminating a subject's body portion with light having a first wavelength in the range of 600-900 nm. 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. Further, a phototherapy device is provided which comprises a first light source and a second light source. The first light source is configured to emit light having a first wavelength which is in the range of 600-900 nm. The second light source is configured to emit 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. At least a portion of the device is a patch which is formed for conforming to at least part of the body portion.

Abstract: A light-emitting device (100) is disclosed. The light-emitting device (100) comprises a plurality of light-emitting elements (135) or light sources and a power module (120) adapted to selectively convey, supply or provide electrical power to the light-emitting elements (135). The power module (120) may be dimensioned such as to be able to power only a proper subset of the light-emitting elements (135) of the light-emitting device (100) at a given time, the subset having a maximum number of light-emitting elements (135) included therein with respect to the number of light-emitting elements (135) included in the all subsets of the light-emitting elements (135) of the light-emitting device (100).

Abstract: A light-emitting device (100) is disclosed. The light-emitting device (100) comprises a plurality of light-emitting elements (135) or light sources and a power module (120) adapted to selectively convey, supply or provide electrical power to the light-emitting elements (135). The power module (120) may be dimensioned such as to be able to power only a proper subset of the light-emitting elements (135) of the light-emitting device (100) at a given time, the subset having a maximum number of light-emitting elements (135) included therein with respect to the number of light-emitting elements (135) included in the all subsets of the light-emitting elements (135) of the light-emitting device (100).

Abstract: A light emitting device for application near mammal tissue includes a flexible body having a front surface for facing the mammal tissue and an opposing back surface. The flexible body accommodates at least one light source which is arranged for irradiating an irradiation area of the mammal tissue. A thermally insulating layer covers the back surface of the flexible body. The thermally insulating layer has a larger surface area than the flexible body.

Abstract: A method of biostimulating phototherapy is provided. The method comprises illuminating a subject's body portion with light having a first wavelength in the range of 600-900 nm. 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. Further, a phototherapy device is provided which comprises a first light source and a second light source. The first light source is configured to emit light having a first wavelength which is in the range of 600-900 nm. The second light source is configured to emit 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. At least a portion of the device is a patch which is formed for conforming to at least part of the body portion.

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) and 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.

Abstract: The invention relates to alight emitting device (1) for application near mammal tissue (2), e.g. for the relief of pain, comprising: a flexible body (3) having a front surface (4) for facing the mammal tissue and an opposing back surface (5), said flexible body accommodating at least one light source (6), said at least one light source (6) is arranged for irradiating an irradiation area of said mammal tissue (2). A thermally insulating layer (7) covers the back surface (5) of the flexible body (3). The thermally insulating layer (7) has a larger surface area than the flexible body (3). The invention further relates to a kit of parts for such a light emitting device and to a method for assembling such a light emitting device.

Abstract: An appearance-modifying device for modifying the visual appearance of a surface covered thereby, the device comprising a first substrate, a second substrate, a spacer structure spacing apart the first and second substrates in such a way that a space between the first and second-substrates is divided into a plurality of cells wherein in each cell, an optically transparent fluid having a plurality of particles is dispersed therein, wherein each of the cells is configured such that a distribution state of the particles is controllable in a first distribution state and an appearance of the surface covered by the appearance-modifying device is determined by optical properties of the particles and a second distribution state in which the particles are concentrated onto one of a first particle concentration site and a second particle concentration site.

Abstract: It is disclosed an appearance-modifying device (10), for modifying the visual appearance of a surface covered thereby. The appearance-modifying device (10) comprises two oppositely arranged substrates (11, 12), which are spaced apart by a spacer structure (13). The spacer structure (13) spaces apart the two substrates (11, 12) in such a way that a space between the two substrates (11, 12) is divided into a plurality of cells (15, 16), the shapes of the individual cells (15, 16) being such that an aperiodic cell pattern (14) is formed by the cells (15, 16). Each cell (15, 16) may comprise an optically transparent fluid having a plurality of particles dispersed therein. The particles are moveable in the fluid through application of an electric field. An appliance at least partly covered by the appearance-modifying device (10) is also disclosed. Furthermore, it is disclosed a method for manufacturing the appearance-modifying device.

Abstract: A light-emitting device (100) is disclosed. The light-emitting device (100) comprises a plurality of light-emitting elements (135) or light sources and a power module (120) adapted to selectively convey, supply or provide electrical power to the light-emitting elements (135). The power module (120) may be dimensioned such as to be able to power only a proper subset of the light-emitting elements (135) of the light-emitting device (100) at a given time, the subset having a maximum number of light-emitting elements (135) included therein with respect to the number of light-emitting elements (135) included in the all subsets of the light-emitting elements (135) of the light-emitting device (100).

Abstract: An appearance-modifying device (10; 30), for modifying the visual appearance of a surface covered thereby, comprising: first (11) and second (12) oppositely arranged optically transparent substrates; a spacer structure (13; 32) spacing apart the first (11) and second (12) substrates in such a way that a space between the first (11) and second (12) substrates is divided into a plurality of cells (15, 16; 31a-c).

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).

Abstract: An image display apparatus including a display device for displaying an image by emission of display light in a first direction; a scattering layer disposed in front of the display device, for scattering at least a portion of ambient light; a transparent plate-shaped light source, arranged parallel to the scattering layer and being optically coupled to the scattering layer. The plate-shaped light source may be a passive light source, in which case at least one light source is arranged along an edge of the plate-shaped light source. When the display device is ON, the scattering layer and the plate-shaped light source are transparent. When the display device is OFF, the scattering layer is scattering and the plate-shaped light source is ON.

Abstract: The invention relates to a luminous window which can function both as a broad area light source and as a transparent window. The broad area light source is achieved by coupling light into a plate-shaped light guide, e.g. via the edges of the light guide, and extracting light from the light guide using geometric protrusions or diffraction gratings into a scattering layer which outputs the broad area light. The transparent window is achieved by switching the scattering layer into a non-scattering state, and possibly switching off the light source, so that light can propagate freely through the light guide and the scattering layer.

Abstract: An appearance-modifying device (10; 30; 80; 100), for modifying the visual appearance of a surface covered thereby, comprising a first substrate (11) having a first electrode (17a, 18a; 33) arranged on a first side thereof; a second substrate (12) arranged opposite the first side of the first substrate (11), the second substrate (12) having a second electrode (18a, 18b; 35) arranged on a side thereof facing the first substrate (11); a spacer structure (13; 32) spacing apart the first (11) and second (12) substrates in such a way that a space between the first (11) and second (12) substrates is divided into a plurality of cells (15, 16; 31a-c; 81a-c; 101).

Abstract: It is disclosed an appearance-modifying device (10), for modifying the visual appearance of a surface covered thereby. The appearance-modifying device (10) comprises two oppositely arranged substrates (11, 12), which are spaced apart by a spacer structure (13). The spacer structure (13) spaces apart the two substrates (11, 12) in such a way that a space between the two substrates (11, 12) is divided into a plurality of cells (15, 16), the shapes of the individual cells (15, 16) being such that an aperiodic cell pattern (14) is formed by the cells (15, 16). Each cell (15, 16) may comprise an optically transparent fluid having a plurality of particles dispersed therein. The particles are moveable in the fluid through application of an electric field. An appliance at least partly covered by the appearance-modifying device (10) is also disclosed. Furthermore, it is disclosed a method for manufacturing the appearance-modifying device.

Abstract: An appearance-modifying device (10; 30), for modifying the visual appearance of a surface covered thereby, comprising: first (11) and second (12) oppositely arranged optically transparent substrates; a spacer structure (13; 32) spacing apart en the first (11) and second (12) substrates in such a way that a space between the first (11) and second (12) substrates is divided into a plurality of cells (15, 16; 31a-c).

Abstract: A method for manufacturing an appearance-modifying device (2, 6, 9; 10; 30), for modifying the visual appearance of a surface covered thereby is disclosed. The method comprises the steps of: providing a first substrate (11) having, on a first side thereof, a first electrode layer (17) covered by a dielectric layer (21); providing a second substrate (12) opposite the first side of the first substrate (11); arranging a spacer structure (13) between the first (11) and second (12) substrates to form a plurality of-cells (15, 16; 31) in such a way that an area occupied by each cell includes a portion of the first electrode layer (17); providing a second electrode (18) spaced apart from the first electrode layer (17) at least by the dielectric layer (21), forming, in each of the cells (15, 16; 31), a recess in the dielectric layer (21); and providing, in each of the cells(15, 16; 31), an optically transparent fluid (19) having a plurality of particles (20) dispersed therein.