公开(公告)号：US20120318957A1

公开(公告)日：2012-12-20

申请号：US13443809

申请日：2012-04-10

Applicant: Hung-Ching LAI ,  Chun-Sheng LIN

Inventor： Hung-Ching LAI ,  Chun-Sheng LIN

IPC: G01C21/00

CPC classification number: G01J1/0295 ,  G01J1/0271 ,  G01J1/0407 ,  G06F3/0421 ,  G06F3/0428

Abstract: An optical touch device with a detecting area includes light guide components, a light source module, a light detecting component and an auxiliary light guide component. Each light guide component includes a first light emitting surface. The light guide components includes a first light guide component and a second light guide component. The auxiliary light guide component and the light detecting component are disposed between two neighboring ends of the first light guide component and the second light guide component, and the light detecting component includes a light detecting end. The auxiliary light guide component is positioned between the light detecting component and the detecting area and includes a first light incidence surface, a second light incidence surface and a second light emitting surface connected between the first light incidence surface and the second light incidence surface. The optical touch device can effectively avoid the blind zone problem.

Abstract translation: 具有检测区域的光学触摸装置包括导光部件，光源模块，光检测部件和辅助光导部件。 每个导光部件包括第一发光面。 光导部件包括第一光导部件和第二光导部件。 辅助光导部件和光检测部件设置在第一导光部件和第二导光部件的两个相邻端之间，光检测部件包括光检测端。 辅助光导部件位于光检测部件和检测区域之间，并且包括连接在第一光入射表面和第二光入射表面之间的第一光入射表面，第二光入射表面和第二发光表面。 光学触摸装置可以有效地避免盲区问题。