Abstract: A light emitting module (150) emits light through a light exit window (104) and comprises a base (110), a solid state light emitter (154, 158) and a partially diffusive reflective layer (102). The base (110) has a light reflective surface (112) which faces towards the light exit window (104). The light reflective surface (112) has a base reflection coefficient Rbase which is defined by a ratio between the amount of light that is reflected by the light reflective surface and the amount of light that impinges on the light reflective surface. The solid state light emitter (154, 158) emits light of a first color range (114), comprises a top surface (152, 158) and has a solid state light emitter reflection coefficient R_SSL which is defined by a ratio between the amount of light that is reflected by the solid state emitter (154,156) and the amount of light that impinges on the top surface (152, 158) of the solid state light emitter (1154, 156).

Abstract: A LED circuit comprises an array of LEDs is arranged in a matrix. The matrix is connected to at least three power rail lines. The LEDs are formed as a first LED arrangement (34) between a first power rail line (30) and a second power rail line (32) and a second LED arrangement (36) between the second power rail line (32) and a third power rail line (30) of the same voltage as the first power rail line. This means there are alternating power rail lines interspersed with the matrix of LEDs. This enables the driving voltages to be kept low and it improves scalability of the design.

Abstract: A display device (40) comprising: a display panel (41) comprising a set of pixels (41R, 41L) the pixels being spatially distributed over the display panel, and each pixel being for providing a light output, the set of pixels comprising a plurality of different subsets (411) of pixels, each subset of pixels comprising one or more pixels of the set of pixels, an imaging unit (42) arranged for imaging the one or more pixels of a subset of pixels to form pixel images on a plurality of view areas on an imaginary plane located at a first distance in front of the display, the plurality of view areas not overlapping each other, with at least one pixel image of each one of the different subsets of pixels overlapping on a same one of the plurality of view areas, the imaginary plane comprising an imaginary circle having the diameter of the pupil of an eye, and the imaginary circle enclosing at least a part of at least two of the plurality of view areas, where the at least two of the plurality of view areas at least part

Abstract: 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.

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 (d1) 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: An autostereoscopic display device comprising a view forming module in registration with an image forming means. The image forming means has an orthogonal array of display pixels spatially defined by an opaque matrix. The view forming module provides at least two optical functions, namely a view forming function and a brightness non-uniformity reducing function. The view forming function modifies the direction of outputs of the display pixels such that the outputs of groups of the display pixels are projected in respective different directions as a plurality of views. The brightness non-uniformity reducing function spreads the outputs of the display pixels.

Abstract: 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.

Abstract: A light output device and manufacturing method in which an array of LEDs (34) is embedded in an encapsulation layer (32). An array of cavities (30) (or regions of different refractive index) is formed in the encapsulation layer (32). The cavities/regions (30) have a density or size that is dependent on their proximity to the light emitting diode (34) locations, in order to reduce hot spots (local high light intensity areas) and thereby render the light output more uniform over the area of the device.

Abstract: 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.

Abstract: A multi-view autostereoscopic display device comprises: a backlight having a plurality of backlight areas arranged in a width direction of the display device; a spatial light modulator arranged over and in registration with the backlight, the spatial light modulator having an array of display forming elements arranged in rows and columns for modulating light received from the backlight; and a view forming layer arranged over and in registration with the spatial light modulator, the view forming layer having a plurality of view forming elements arranged in the width direction of the display device, each view forming element being configured to focus modulated light from adjacent groups of the display forming elements into a plurality of views for projection towards a user in different directions.

Abstract: 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).

Abstract: A method for controlling an angular distribution of a light-beam emitted by a light-output device (102, 200) comprising a first set of light-sources (105, 211) comprising at least one light-source configured to emit light within a first angular range (221, 231, 241) and second set of light-sources (107, 210) comprising at least one light-source configured to emit light within a second angular range (222, 232, 242), wherein the first angular range is different from the second angular range. The method comprises the steps of: receiving (401) a dimmer setting (VDS) from a dimmer (101); controlling (404), if the dimmer setting is within a first predetermined range, the first set of light-sources to emit light within the first angular range; and controlling (405), if the dimmer setting is within a second predetermined range, the second set of light-sources to emit light within the second angular range.

Abstract: The invention provides a autostereoscopic display device with a particular design of lenticular lens array (lens pitch and slant angle) to optimize the quality of the views provided to the user, when a multi -primary pixel layout is used, with at least four sub-pixels of at least three different colors. The slant angle and lens pitch is related to the pixel pitch (in the row and colunm directions) as well as the number of different color sub-pixels.

Abstract: 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.

Abstract: A light emitting module 150 emits light through a light exit window 104 and comprises a base 110, a solid state light emitter 154, 156 and a partially diffusive reflective layer 102. The base 110 has a light reflective surface 112 which faces towards the light exit window 104. The light reflective surface 112 has a base reflection coefficient Rbase which i defined by a ratio between the amount of light that is reflected by the light reflective surface and the amount of light that impinges on the light reflective surface. The solid state light emitter 154, 156 emits light of a first color range 114, comprises a top surface 152, 158 and has a solid state light emitter reflection coefficient R_SSL which is defined by a ratio between the amount of light that is reflected by the solid state emitter 154, 156 and the amount of light that impinges on the top surface 152, 158 of the solid state light emitter 154, 156. The light exit window 104 comprises at least a part of the partially diffusive reflective layer 102.

Abstract: A beam steering device (300) for deflecting a beam of light is provided. The beam steering device comprises a first deflecting member (310), a rotating member (320), and a second deflecting member (330). For an incoming beam of light having components (303, 302) with their polarization parallel (303?) and perpendicular (302?), respectively, to an optic axis (314, 334) of the beam steering device, the parallel component (303) is deflected by a first angle (304) when passing the first deflecting member. When passing the rotating member, the polarization (303?, 302?) of the beam of light is rotated by 90 degrees (303?, 302?). When passing the second deflecting member, the perpendicular component (302) is deflected by a second angle (305).

Abstract: The invention relates to an array of light generators where each light generator comprises reflecting collimation optics in the form of curved mirrors for collimating light emitted by light sources such as surface mounted Light Emitting Diodes. The collimation optics is formed to collimate light in a direction parallel with a plane, e.g. a printed circuit board, onto which the light sources are mounted. The light sources may emit light parallel with the direction of collimation or non-parallel, e.g. perpendicular, with the direction of collimation in which case the collimation optics redirects the light rays from the light source. The array of light generators can be used in combination with a television display for creating a pixelated image appearing to the viewer as an image peripherally surrounding the display.

Abstract: A switchable display device (100) which is arranged to switch between a two-dimensional view mode and a three-dimensional view mode is disclosed. The switchable display device (100) comprises: a structure (104) of light generating elements (105-108) for generating light on basis of respective driving values; and optical directory means (110) for directing the generated light in dependence of an actual view mode, the actual view mode being either the two-dimensional view mode or the three-dimensional view mode. The switchable display device (100) is arranged to alternately display two-dimensional image data and three-dimensional image data, while the optical directory means (110) are switched synchronously; the 2D/3D switching is performed at a predetermined frequency, sufficiently high so that the observer can perceive a 2D window and a 3D window simultaneously.

Abstract: A 2D-3D switchable autostereoscopic display device has an imaging arrangement (109) electrically switchable between a 2D mode and a 3D mode, which comprises in-plane switching electrodes comprising coplanar parallel electrode lines. The electrode lines are arranged as a plurality of sets of parallel lines, each set defining a lenticular lens area. Each set comprises first electrode lines at the opposite boundaries between the lens area and adjacent lens areas, and at least a first pair of electrode lines disposed between the opposite boundaries and symmetrical about the centre of the lens area, wherein each set comprises at most six electrode lines between the opposite boundaries. This provides an electrode layout which is simple to manufacture and yet has been found to provide good optical lens quality.

Abstract: A switchable autostereoscopic display device comprises a display panel having an array of display pixels for producing a display, the display pixels being arranged in rows and columns; and an imaging arrangement for directing the output from different pixels to different spatial positions to enable a stereoscopic image to be viewed. The imaging arrangement is electrically switchable between at least three modes comprising a 2D mode and two 3D modes. The imaging arrangement comprises an electrically configurable graded index lens array. The display can be switched between a number of modes to enable the display to be adapted or to adapt itself to the image content to be displayed and/or the display device orientation.