公开(公告)号：WO2016130074A4

公开(公告)日：2016-10-13

申请号：PCT/SE2016050098

申请日：2016-02-09

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  BERGSTRÖM HÅKAN ,  KARLSSON IVAN ,  CRAVEN-BARTLE THOMAS

IPC: G06F3/042

CPC classification number: G06F3/0428 ,  G06F3/0421 ,  G06F2203/04104 ,  G06F2203/04109

Abstract: 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.

Abstract translation: 本发明的实施例提供了一种触摸感测设备，包括：限定触摸表面的透光元件（10） 一组发射器（30a），其布置在所述触摸表面的外围周围以将光束发射到所述透光元件中，其中所述光束（50）的第一部分在所述透光元件内部传播，同时照亮所述触摸表面，例如 接触触摸表面的物体引起传​​播光的衰减，并且其中光束（90）的第二部分穿出透光元件并且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外围周围，以从所述透射元件接收来自所述一组发射器的光并且从所述触摸表面的上方接收光，其中每个光检测器布置成接收来自多于一个发射器的光。

公开(公告)号：CA2825287A1

公开(公告)日：2012-08-09

申请号：CA2825287

申请日：2012-01-30

Applicant: FLATFROG LAB AB

Inventor： CRAVEN-BARTLE THOMAS ,  BERGSTROM HAKAN

IPC: G06F3/042

Abstract: 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).

公开(公告)号：EP2936221A4

公开(公告)日：2016-08-31

申请号：EP13865732

申请日：2013-12-17

Applicant: FLATFROG LAB AB

Inventor： CRAVEN-BARTLE THOMAS ,  BERGSTRÖM HÅKAN ,  KARLSSON IVAN ,  WASSVIK OLA ,  SERNELIUS DAVID

IPC: G06F3/042 ,  F21V8/00 ,  G02B5/00 ,  G02B6/00

CPC classification number: G06F3/0421 ,  G02B5/00 ,  G02B5/005 ,  G02B6/0038 ,  G02B6/0053 ,  G06F3/0416 ,  G06F2203/04103 ,  G06F2203/04109

公开(公告)号：AU2012212715A1

公开(公告)日：2013-04-18

申请号：AU2012212715

申请日：2012-01-30

Applicant: FLATFROG LAB AB

Inventor： CRAVEN-BARTLE THOMAS ,  BERGSTROM HAKAN

IPC: G06F3/042

Abstract: 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).

公开(公告)号：EP2764426A4

公开(公告)日：2015-03-25

申请号：EP12830234

申请日：2012-09-05

Applicant: FLATFROG LAB AB

Inventor： CRAVEN-BARTLE THOMAS

IPC: G06F3/042 ,  F21V8/00

CPC classification number: G06F3/0428 ,  G02B6/0018 ,  G02B6/002 ,  G02B6/0028 ,  G06F3/0421 ,  G06F2203/04109

Abstract: A coupling element (14) for use in a touch-sensitive apparatus is arranged to transfer light between an electro-optical device (2) and a panel (4) for light transmission. The electro-optical device (2) is an emitter or a detector and has an operative solid angle given by orthogonal device divergence angles. The coupling element (14) is an optical component with a first light transmission surface (21) for facing the electro-optical device (2), and a second light transmission surface (22) for mounting on the panel (4). The coupling element (14) has an optical structure (23) that directs the light between the first and second light transmission surfaces (21, 22) by one or more reflections while expanding one device divergence angle (αx) into a component divergence angle at the second light transmission surface (22). Thereby, the component divergence angle defines a divergence (&phgr;p) in the plane of the panel (4) with respect to light propagating by internal reflections inside the light transmissive panel (4).