Invention Grant
US08878124B2 Optical touch device having an auxiliary light guide component disposed between the two neighboring ends of first and second light guide components
有权
具有设置在第一和第二导光部件的两个相邻端之间的辅助导光部件的光学触摸装置
- Patent Title: Optical touch device having an auxiliary light guide component disposed between the two neighboring ends of first and second light guide components
- Patent Title (中): 具有设置在第一和第二导光部件的两个相邻端之间的辅助导光部件的光学触摸装置
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Application No.: US13443809Application Date: 2012-04-10
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Publication No.: US08878124B2Publication Date: 2014-11-04
- Inventor: Hung-Ching Lai , Chun-Sheng Lin
- Applicant: Hung-Ching Lai , Chun-Sheng Lin
- Applicant Address: TW Hsinchu
- Assignee: Pixart Imaging Inc.
- Current Assignee: Pixart Imaging Inc.
- Current Assignee Address: TW Hsinchu
- Agent Cheng-Ju Chiang
- Priority: TW100120958A 20110615
- Main IPC: H01J40/14
- IPC: H01J40/14 ; G06F3/042
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.
Public/Granted literature
- US20120318957A1 OPTICAL TOUCH DEVICE Public/Granted day:2012-12-20
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