摘要:
The invention relates to an illumination device (10) for illuminating a surface, with a lighting element (20) and an illuminating body (30), wherein the lighting element (20) emits an artificial light (21,21'), a housing element (40) comprises the lighting element (20) and supports the illuminating body (30), the illuminating body (30) comprises a transparent light conductive material and is generally overlying the surface, being illuminated. The invention discloses, that the illuminating body (30) comprises a light extraction layer (50), configured to receive and to deflect the artificial light (21,21') from the lighting element (20) onto the surface.
摘要:
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. The backlight is switchable to activate different ones of the backlight areas in different portions of a driving cycle of the display device so that, in the different portions of the driving cycle, modulated light from the active backlight areas is incident on each view forming element with respective different angles of incidence. In this way, the overall viewing angle or the effective three dimensional display resolution may be increased.
摘要:
The invention describes a light sensor (1) comprising a filter arrangement (11), which filter arrangement (11) comprises a number of spectral filters (F 1 , F 2 ,..., F n ) for filtering incident light (L), wherein a spectral filter (F 1 , F 2 ,..., F n ) is realized to pass a distinct component of the incident light (L), an aperture arrangement (12) for admitting a fraction of the incident light (L), and a sensor arrangement (13) realized to collect the admitted filtered light (L'), which sensor arrangement (13) comprises an array of sensor elements (130) for generating image-related signals (S, S 1 , S 2 ,..., S n ) and which sensor array is sub-divided into a number of regions (R 1 , R 2 ,..., R n ), wherein a region (R 1 , R 2 ,..., R n ) of the sensor array is allocated to a corresponding spectral filter (Fi, F2,..., Fn) such that an image-related signal (S) generated by a sensor element (130) of a particular region (R 1 , R 2 ,..., R n ) comprises information pertaining to the direction of origin and/or the spectral composition of the light passed by the corresponding spectral filter (F 1 , F 2 ,..., F n ). The invention further describes a light sensor device (10) for determining the direction of origin and/or the spectral composition of light (L) incident at the light sensor device (10), a method of collecting incident light (L), and a method of determining the direction of origin and/or the spectral composition of incident light (L).
摘要:
There is disclosed a lighting device (300b) of which the light sources (302) and/or optical elements are hidden in a first cover state associated with a first light state. This enables an unobtrusive lighting system in the first cover state. In a second cover state associated with a second light state, optical elements (304), e.g. shutters or beam shaping elements, are switched, induced by the heat or the light flux generated by the light sources, such that the lighting system can function properly.
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 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.
摘要:
A configurable multi-view display device ( 100 ) is disclosed. The multi-view display device ( 100 ) comprises: a structure ( 104 ) of light modulating elements ( 105 - 108 ) being located in a first plane, which are arranged to provide respective light beams to; optical directory means ( 110 ) being located in a second plane which is substantially parallel to the first plane, for directing the respective light beams into one or more predetermined directions relative to the first plane, depending on an actual view configuration of the multi-view display device; and optical configuration means ( 120 ) for optically setting the multi-view display device in the actual view configuration, by means of the structure ( 104 ) of light modulating elements ( 105 - 108 ).
摘要:
A waveguide (40; 51 ; 61), arranged to guide light from at least one light source (53a-c), the waveguide comprising at least one guiding edge (43; 50a-c; 60) adapted to contain the light in the waveguide (40; 51 ; 61), and an extraction edge (44; 50d) adapted to enable extraction of the light from the waveguide (40; 51; 61), wherein the guiding edge (43; 50a-c; 60) is configured to reflect the light on its way towards the extraction edge (44; 50d). The guiding edge (43; 50a-c; 60) is further configured such that a direction (xrl, Xr2) of reflection of a ray of light impinging on the guiding edge (43; 50a-c; 60), in a given direction (xi) of incidence relative to a general direction (X0) of extension of the guiding edge (43; 50a-c; 60), is dependent on a position (P1, P2) of incidence along the guiding edge (43; 50a-c; 60). The waveguide may be configured such that virtually no light is lost through back-scattering or unintentional extraction or outcoupling through the at least one guiding edge.
摘要:
A light source, includes a component (6) for emitting light, arranged to emit a major part of light generated within the component through a face (8) of the component (6), and at least one structure (7;18) for coupling out light, having a base (11;19) in contact with the face (8) of the component (6) and arranged to emit light through an aperture (12;20) opposite the base (11;19). An interface between the component (6) and an environment surrounding the base (7;18) is arranged to keep at least part of the light generated in the component confined to at least a layer of the component (6) adjoining the base (11;19). The base (11; 19) is in contact with the face (8) over an area (A2) smaller than the area (A0) of the face (8).
摘要:
The invention relates to a projection display device (10, 40, 60, 70) for casting an image onto a projection screen (26, 56, 86). The device comprises a spatial light modulator (16, 46, 62, 76) including an array of light modulating elements (18, 48, 78), and a light source (12, 42, 72) arranged to illuminate the modulator. The device is characterized in that each light modulating element of the modulator is illuminated by light diverging in a least one dimension, which light is spatially modulated by the modulator and cast onto the projection screen. An advantage with the projection display device according to the invention is that it can be realized in a very compact fashion. The invention further relates to a hand held device comprising such projection display device.