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1. (WO2017149719) INPUT OPERATION DETECTION DEVICE AND VIDEO PROJECTION DEVICE

Pub. No.:    WO/2017/149719    International Application No.:    PCT/JP2016/056571
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Mar 04 00:59:59 CET 2016
IPC: G06F 3/042
G06F 3/041
Applicants: MAXELL, LTD.
マクセル株式会社
Inventors: YAMAMOTO Shoji
山本 将史
SHIGAKI Masanobu
紫垣 政信
SEO Yoshiho
瀬尾 欣穂
Title: INPUT OPERATION DETECTION DEVICE AND VIDEO PROJECTION DEVICE
Abstract:
The purpose of the present invention is to provide an input operation detection device which detects the strength of a touch without using a digital pen or an installation of a touch panel. To this end, provided is an input operation detection device, comprising: a light source which emits an emission light which has a width in a direction which is perpendicular to a touch operation plane; a sensor unit which receives reflected light which occurs when the emission light is reflected by an object to be detected which makes contact with the touch operation plane and carries out an input operation, said sensor unit outputting data of the intensity of the received reflected light and/or distance data based on the travel time of the reflected light; and a control unit which, on the basis of a change over time of the data of the intensity of the received light and/or a change over time of the distance data, outputs a first operation signal which indicates that the object to be detected has strongly contacted the touch operation plane or a second operation signal which indicates that the object to be detected has weakly contacted the touch operation plane.