Invention Grant
- Patent Title: Optical digitizer system with position-unique photoluminescent indicia
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Application No.: US14724937Application Date: 2015-05-29
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Publication No.: US09836164B2Publication Date: 2017-12-05
- 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 ; G06F3/042 ; C09K11/00 ; G01C21/20 ; G06F3/03 ; G06F3/0354
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
- US20150268755A1 OPTICAL DIGITIZER SYSTEM WITH POSITION-UNIQUE PHOTOLUMINESCENT INDICIA Public/Granted day:2015-09-24
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