发明名称 |
Object detection sensor |
摘要 |
An object detection sensor wherein a detection electrode (electrode connected with a detection circuit via a conductor) is not exposed from a surface and an input signal is scarcely reduced when a contact area is small, which is capable of reliably detecting a contact thereof with an object in a manner substantially the same as that in the case of a large contact area even when the contact area is small is provided. The object detection sensor is provided with a sensor case made from an insulating material, a detection electrode (electrode A) disposed on an inner surface of the sensor case, a touch electrode (touch electrode A) disposed at a position opposed to the detection electrode on an outer surface of the sensor case and capacitance-coupled to the detection electrode, and a detection circuit which is connected to the detection electrode and detects a contact of an object with the touch electrode based on a change in electrostatic capacitance between the detection electrode and the ground to output a detection signal.
|
申请公布号 |
EP1487104(A2) |
申请公布日期 |
2004.12.15 |
申请号 |
EP20040011278 |
申请日期 |
2004.05.12 |
申请人 |
OMRON CORPORATION |
发明人 |
OKUSHIMA, AKIHIRO;SUEYASU, HIROYUKI;NAGAYAMA, KEIICHI;KURUMADO, YUKINORI |
分类号 |
G01V3/08;H03K17/96;(IPC1-7):H03K17/955 |
主分类号 |
G01V3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|