Invention Grant
US08692212B1 Optical digitizer system with position-unique photoluminescent indicia
有权
具有位置独特光致发光标记的光学数字化仪系统
- Patent Title: Optical digitizer system with position-unique photoluminescent indicia
- Patent Title (中): 具有位置独特光致发光标记的光学数字化仪系统
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Application No.: US13713052Application Date: 2012-12-13
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Publication No.: US08692212B1Publication Date: 2014-04-08
- Inventor: Stephen J. Craft
- Applicant: 3M Innovative Properties Company
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Robert S. Moshrefzadeh
- Main IPC: G01N21/64
- IPC: G01N21/64 ; C09K11/00
Abstract:
A digitizer system includes a substrate with indicia having photoluminescent features that uniquely define local areas of the substrate. A sensor device, such as a stylus, may sense radiation emitted from the features, and a controller may determine therefrom the location of the stylus relative to the substrate.
Public/Granted literature
- US20140117252A1 OPTICAL DIGITIZER SYSTEM WITH POSITION-UNIQUE PHOTOLUMINESCENT INDICIA Public/Granted day:2014-05-01
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