Invention Grant
US09122355B2 Indication member, optical position detection device, and display system with input function
有权
指示部件，光学位置检测装置以及具有输入功能的显示系统
- Patent Title: Indication member, optical position detection device, and display system with input function
- Patent Title (中): 指示部件，光学位置检测装置以及具有输入功能的显示系统
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Application No.: US13538579Application Date: 2012-06-29
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Publication No.: US09122355B2Publication Date: 2015-09-01
- Inventor: Kazuki Yoshida , Kanechika Kiyose
- Applicant: Kazuki Yoshida , Kanechika Kiyose
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2011-145371 20110630
- Main IPC: G06F3/03
- IPC: G06F3/03 ; G06F3/042 ; G06F3/0354
Abstract:
A detectable indication member for an optical position detection device includes a round bar shaped shaft and a spherical body provided at the distal end of the shaft. The outer peripheral surface of the spherical body and the outer peripheral surface of an end portion of the shaft portion connected to the spherical body form a retroreflective portion. A portion of the shaft adjacent the base end of the end portion absorbs infrared light.
Public/Granted literature
- US20130002536A1 INDICATION MEMBER, OPTICAL POSITION DETECTION DEVICE, AND DISPLAY SYSTEM WITH INPUT FUNCTION Public/Granted day:2013-01-03
Information query
