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1.发明申请OPTICAL COUPLING IN TOUCH-SENSING SYSTEMS USING DIFFUSIVELY REFLECTING ELEMENT 审中-公开使用差分反射元件的触摸感应系统中的光耦合
公开(公告)号：WO2013191638A1
公开(公告)日：2013-12-27
申请号：PCT/SE2013/050735
申请日：2013-06-19
CPC分类号： G06F3/0421 , G02B5/0284 , G06F2203/04109
摘要： A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) with a front surface and a rear surface. Light emitters (2) and light detectors (3) optically face the rear surface along a perimeter of a touch-sensitive region (4) on the panel (1). At least one diffusively reflecting element (40) is arranged on the front surface (5) along the perimeter of the touch-sensitive region (4). The light emitters (2) are arranged to emit a respective beam of light onto the diffusively reflecting element (40), so as to generate propagating light that propagates by total internal reflection inside the panel (1) across the touch-sensitive region (4), and the light detectors (3) are arranged to receive detection light generated as the propagating light impinges on the diffusively reflecting element (40), so as to define a grid of propagation paths (D) across the touch-sensitive region (4) between pairs of light emitters (2) and light detectors (3).
摘要翻译： 触感设备通过光沮丧（FTIR）操作，并且包括具有前表面和后表面的透光面板（1）。 光发射器（2）和光检测器（3）沿着面板（1）上的触敏区域（4）的周边光学地面对后表面。 至少一个扩散反射元件（40）沿着触敏区域（4）的周边布置在前表面（5）上。 光发射器（2）被布置成将相应的光束发射到漫射反射元件（40）上，以便产生通过面板（1）内的全内反射传播的传播光穿过触敏区域（4） ），并且光检测器（3）被布置成接收当传播光照射在漫反射元件（40）上时产生的检测光，以便在触敏区域（4）上限定传播路径（D）的网格 ）在光发射器（2）和光检测器（3）之间。
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2.发明申请OPTICAL TOUCH SYSTEM COMPRISING MEANS FOR PROJECTING AND DETECTING LIGHT BEAMS ABOVE AND INSIDE A TRANSMISSIVE PANEL 审中-公开光学触控系统，包括用于投影和检测上面和内部的光束的传输手段
公开(公告)号：WO2016130074A1
公开(公告)日：2016-08-18
申请号：PCT/SE2016/050098
申请日：2016-02-09
IPC分类号： G06F3/042
CPC分类号： G06F3/0428 , G06F3/0421 , G06F2203/04104 , G06F2203/04109
摘要： An embodiment of the invention provides a touch sensing apparatus, comprising: a light transmissive element (10) that defines a touch surface; a set of emitters (30a) arranged around the periphery of the touch surface to emit beams of light into the light transmissive element, wherein a first portion of the beams (50) of light propagate inside the light transmissive element while illuminating the touch surface such that an object touching the touch surface causes an attenuation of the propagating light, and wherein a second portion of the beams (90) of light pass out of the light transmissive element and are reflected to travel above the touch surface, a set of light detectors (30b) arranged around the periphery of the touch surface to receive light from the set of emitters from the transmissive element and from above the touch surface, wherein each light detector is arranged to receive light from more than one emitter.
摘要翻译： 本发明的实施例提供了一种触摸感测装置，包括：限定触摸表面的透光元件（10）; 一组发射器（30a），布置在触摸表面的周边周围以将光束发射到透光元件中，其中光束的第一部分（50）在透光元件内部传播，同时照亮触摸表面， 接触触摸表面的物体导致传播光的衰减，并且其中光束（90）的第二部分从光透射元件通过并被反射以在触摸表面上方行进，一组光检测器 （30b），其布置在所述触摸表面的周边周围以从所述透射元件和所述触摸表面上方接收来自所述一组发射器的光，其中每个光检测器布置成接收来自多于一个发射器的光。
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公开(公告)号：WO2014098743A1
公开(公告)日：2014-06-26
申请号：PCT/SE2013/051535
申请日：2013-12-17
发明人： BERGSTRÖM, Håkan , WASSVIK, Ola , CRAVEN-BARTLE, Thomas , VON HOFSTEN, Olov , LE NORMAND, Björn , EK, Leif
CPC分类号： G06F3/0421 , G02B6/0013 , G02B6/0023 , G02B6/0088 , G06F3/0416 , G06F3/0428 , G06F2203/04103 , G06F2203/04109
摘要： A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) with a front surface (5) and a rear surface (6). Light emitters (2) are optically coupled to the panel (1) at entry ports along a periphery region of the panel (1), and light detectors (3) are optically coupled to the panel (1) at exit ports along the periphery region for detecting light transmitted inside the panel (1). At least one optical sheet (20) is provided on the rear surface (6) in the periphery region. In an outcoupling installation, the light detectors (3) are arranged at the respective optical sheet (20) to receive, on a respective light-sensitive surface (3A), light from the optical sheet (20), and each light detector (3) is arranged with the light-sensitive surface (3A) essentially perpendicular to the rear surface (6). In an incoupling installation, each light emitter (2) is arranged at the respective optical sheet (20) to emit diverging light with a main direction that is essentially parallel to the rear surface (6) such that a portion of the diverging light impinges on the optical sheet (20) so as to define a respective entry port.
摘要翻译： 触摸敏感设备通过光挫败（FTIR）操作，并且包括具有前表面（5）和后表面（6）的透光面板（1）。 光发射器（2）沿着面板（1）的外围区域的进入端口光学耦合到面板（1），并且光检测器（3）沿着周边区域的出口端口光耦合到面板（1） 用于检测在面板（1）内部透射的光。 至少一个光学片（20）设置在周边区域的后表面（6）上。 在外耦合装置中，光检测器（3）布置在相应的光学片（20）处，以在相应的感光表面（3A）上接收来自光学片（20）的光和每个光检测器（3） ）与感光表面（3A）布置成基本上垂直于后表面（6）。 在接合装置中，每个光发射器（2）布置在相应的光学片（20）处以发射具有基本上平行于后表面（6）的主方向的发散光，使得发散光的一部分撞击 光学片（20），以限定相应的入口。
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公开(公告)号：WO2016140612A1
公开(公告)日：2016-09-09
申请号：PCT/SE2016/050155
申请日：2016-02-29
CPC分类号： G02B6/0025 , G02B5/045 , G02B6/00 , G02B6/0053 , G06F3/042 , G06F3/0428
摘要： The invention provides an optical component for transferring light between an opto-electronic device and a light transmissive panel which defines two opposing boundary surfaces, the optical component having a shape formed from a geometric shape having a base surface, a lateral front surface and an axis, wherein the geometric shape is truncated by a plane intersecting the front surface, the base surface, and the axis, forming a back surface. The base surface is configured for mounting the optical component to the light transmissive panel and for coupling light into the light transmissive panel. The front surface being configured for coupling light from the front surface, through the base surface, and into the light transmissive panel for the light to propagate by total internal reflection within the light transmissive panel.
摘要翻译： 本发明提供了一种用于在光电器件和限定两个相对的边界表面的透光面板之间传送光的光学部件，该光学部件具有由几何形状形成的形状，该几何形状具有基面，横向前表面和轴线 其特征在于，所述几何形状由与所述前表面，所述基面和所述轴相交的平面截断，形成背面。 基部表面被配置用于将光学部件安装到透光面板上并将光耦合到透光面板中。 前表面被配置用于将来自前表面的光，穿过基底表面，以及光透射面板耦合，以使光通过光透射面板内的全内反射传播。
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5.发明申请OPTICAL COUPLING IN TOUCH-SENSING SYSTEMS USING DIFFUSIVELY TRANSMITTING ELEMENT 审中-公开使用差分传输元件的触摸感应系统中的光耦合
公开(公告)号：WO2014017973A1
公开(公告)日：2014-01-30
申请号：PCT/SE2013/050922
申请日：2013-07-22
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G02B6/43 , G06F1/16 , G06F2203/04109
摘要： A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) with a front surface and a rear surface. Light emitters (2) and light detectors (3) optically face the rear surface along a perimeter of a touch- sensitive region (4) on the panel (1). At least one non-imaging, diffusively transmitting optical element (40) is arranged on the rear surface (6) along the perimeter of the touch- sensitive region (4). The light emitters (2) are arranged to emit a respective beam of light onto the non-imaging optical element (40) so as to generate, by diffuse transmission, propagating light that propagates by total internal reflection inside the panel (1) across the touch-sensitive region (4), and the light detectors (3) are arranged to receive detection light generated, by diffuse transmission, as the propagating light impinges on the non-imaging optical element (40), so as to define a grid of propagation paths (D) across the touch-sensitive region (4) between pairs of light emitters (2) and light detectors (3).
摘要翻译： 触感设备通过光沮丧（FTIR）操作，并且包括具有前表面和后表面的透光面板（1）。 光发射器（2）和光检测器（3）沿着面板（1）上的触敏区域（4）的周边光学地面对后表面。 沿着触敏区域（4）的周边在后表面（6）上布置至少一个非成像的，扩散的光学元件（40）。 光发射器（2）被布置成将相应的光束发射到非成像光学元件（40）上，以便通过漫射透射产生通过面板（1）内的全内反射传播的传播光 触摸敏感区域（4）和光检测器（3）被布置成当传播光照射在非成像光学元件（40）上时，通过漫射传输来接收产生的检测光，以便确定 传播路径（D）穿过成对的发光体（2）和光检测器（3）之间的触敏区域（4）。
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公开(公告)号：WO2012105893A1
公开(公告)日：2012-08-09
申请号：PCT/SE2012/050086
申请日：2012-01-30
IPC分类号： G06F3/042
CPC分类号： G02B6/0016 , G06F3/0421 , G06F2203/04103 , G06F2203/04109
摘要： A touch-sensitive apparatus comprises a light transmissive panel (1), an illumination arrangement and a detection arrangement. The illumination arrangement is configured to couple light into the panel (1) via an incoupling site (5B) such that the light propagates by total internal reflection (TIR) in opposite top and bottom surfaces (4, 5) of the panel and such that an object touching the top or bottom surface (4, 5) causes a change in the propagating light. The detection arrangement comprises a light detector arranged to detect the change in the propagating light. A compact and robust incoupling site (5B) is defined by a sheet-like micro-structured surface portion (22) which is fixedly arranged on one of the top and bottom surfaces (4, 5) and configured to transmit light having an angle of incidence that enables light propagation by TIR inside the panel (1). The surface portion (22) may be integrated in the panel or implemented by a thin and flexible film (20) of light transmissive plastic material, formed with the micro-structured surface portion and adapted for attachment to the top or bottom surface (4, 5).
摘要翻译： 触感设备包括透光面板（1），照明装置和检测装置。 照明装置被配置为经由耦合位置（5B）将光耦合到面板（1）中，使得光通过面板的相对的顶部和底部表面（4,5）中的全内反射（TIR）传播，并且使得 接触顶部或底部表面（4,5）的物体导致传播光的变化。 检测装置包括光检测器，其被布置成检测传播光的变化。 紧凑且坚固的接合位置（5B）由固定地布置在顶表面和底表面（4,5）中的一个上的片状微结构表面部分（22）限定，并且构造成透射具有 使得能够通过面板（1）内的TIR进行光传播的入射。 表面部分（22）可以集成在面板中，或者通过形成有微结构化表面部分并且适于附接到顶表面或底表面（4）的薄透明塑料材料的薄膜（20）来实现， 5）。
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公开(公告)号：WO2020236064A1
公开(公告)日：2020-11-26
申请号：PCT/SE2020/050482
申请日：2020-05-11
IPC分类号： G06F3/042 , G06F3/0354
摘要： A touch sensing apparatus is disclosed, comprising a panel that defines a touch surface extending in a plane having a normal axis, a plurality of emitters 5 and detectors arranged along a perimeter of the panel, wherein the plurality of emitters and detectors are fixed to a first frame element extending along the perimeter, a second frame element mounted to the first frame element and extending along said perimeter, wherein the second frame element comprises first and second light directing surfaces, wherein the emitters are arranged to 0 emit light and the first and second light directing surfaces are arranged to receive the light and direct the light across the touch surface substantially parallel to the touch surface.
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公开(公告)号：WO2019045629A1
公开(公告)日：2019-03-07
申请号：PCT/SE2018/050871
申请日：2018-08-30
摘要： A touch sensing apparatus is provided comprising: a light transmissive panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the light transmissive panel, a plurality of optical components arranged along the perimeter of the light transmissive panel, wherein the light emitters are arranged to emit a respective beam of emitted light and the optical components are configured to direct the emitted light to a path across the light transmissive panel. Optionally, optical components comprise a light guide arranged to receive light from the light emitters through a first surface and couple out light travelling in the light guide to the touch surface through a second surface. The second surface may be diffusively transmissive. The light guide may further comprise a reflective surface configured to internally reflect light travelling in the light guide from the first surface to the diffusive surface. The reflective surface may be diffusely reflective, partially diffusely reflective, or specularly reflective.
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公开(公告)号：WO2023048632A1
公开(公告)日：2023-03-30
申请号：PCT/SE2022/050848
申请日：2022-09-23
摘要： A method of video conferencing between a plurality of users at a first videoconferencing terminal and a second videoconferencing terminal comprises receiving one or more images of at least one first user at the first videoconferencing terminal. The method further comprises determining at least one change in the interaction status of the at least one first user at the first videoconferencing terminal based on the received one or more images. The method further comprises sending a control signal to modify a mute status of a microphone and / or a speaker at the first videoconferencing terminal based on the determined changed interaction status.
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10.发明申请
公开(公告)号：WO2014098744A1
公开(公告)日：2014-06-26
申请号：PCT/SE2013/051537
申请日：2013-12-17
CPC分类号： G06F3/0421 , G02B5/00 , G02B5/005 , G02B6/0038 , G02B6/0053 , G06F3/0416 , G06F2203/04103 , G06F2203/04109
摘要： A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel (1) that defines a front surface (5) and a rear surface (6), light emitters optically connected to the panel (1) so as to generate light that propagates by total internal reflection inside the panel, and light detectors (3) optically connected to the panel (1) so as to define a grid of propagation paths inside the panel (1) between pairs of light emitters and light detectors (3). Each light detector (3) is optically connected to the panel (1) via an angular filter (20). The filter (20) is applied to an outcoupling region on at least one of the front and rear surfaces (5, 6) and is configured to transmit light only within a confined range of angles with respect to the normal of the outcoupling region. The confined range extends from a lower angle limit θ min to an upper angle limit θ max . The lower angle limit θ min is equal to or larger than a critical angle θ C , which is given by θ C = arcsin (1/n panel ), with n panel being the refractive index of the light transmissive panel (1) at the outcoupling region.
摘要翻译： 一种触摸敏感设备通过光挫败（FTIR）操作并且包括限定前表面（5）和后表面（6）的光透射面板（1），光发射器光学连接到面板（1），以便 产生通过面板内的全内反射传播的光;以及光学检测器（3），其光学连接到面板（1），以便在发光体和光检测器之间限定面板（1）内部的传播路径网格 3）。 每个光检测器（3）通过角度滤波器（20）光学连接到面板（1）。 过滤器（20）被施加到前表面和后表面（5,6）中的至少一个上的外耦合区域，并且被配置为仅在相对于输出耦合区域的法线的限定的角度范围内透射光。 限制范围从较低的角度限制和最大角度延伸至最大角度限制;最大值。 下角度限制和最小值等于或大于临界角度; C由下式给出：C = arcsin（1 / npanel），npanel为透光面板（1）的折射率 outcoupling区域。
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