CAPACITANCE SENSOR
First Claim
1. A code-type sensor for detecting a change in capacitance, comprising:
- a plurality of detection electrodes for detecting a change in capacitance;
a shield electrode surrounding the plurality of detection electrodes so as to restrict a detection range of the capacitance and having an opening in a direction of detection; and
a contact detecting electrode for detecting contact disposed along a longitudinal direction of the sensor, whereinthe detection electrodes are disposed at a position close to the opening in the shield electrode and at a position far from the opening in the shield electrode,the contact detecting electrode is disposed on a back side in the direction of detection of the shield electrode, andthe respective detection electrodes are integrally connected to each other in such a way as to be held in a separate state, the detection electrodes and the shield electrode are integrally connected to each other in such a way as to be held in a separate state, and the shield electrode and the contact detecting electrode are kept in such a way as to be held in a separate state across a clearance in a natural state and are brought into contact with each other when the sensor is pressed in the direction of detection by contact of an object.
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Accused Products
Abstract
A code-type sensor for detecting a change in capacitance includes a plurality of detection electrodes for detecting a change in capacitance, a shield electrode surrounding the plurality of detection electrodes so as to restrict a detection range of the capacitance and having an opening in a direction of detection, and a contact detecting electrode for detecting contact disposed along a longitudinal direction of the sensor. The detection electrodes are disposed at a position close to the opening in the shield electrode and at a position far from the opening in the shield electrode. The contact detecting electrode is disposed on a back side in the direction of detection of the shield electrode. The respective detection electrodes are integrally connected to each other in such a way as to be held in a separate state, the detection electrodes and the shield electrode are integrally connected to each other in such a way as to be held in a separate state, and the shield electrode and the contact detecting electrode are kept in such a way as to be held in a separate state across a clearance in a natural state and are brought into contact with each other when the sensor is pressed in the direction of detection by contact of an object.
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Citations
6 Claims
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1. A code-type sensor for detecting a change in capacitance, comprising:
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a plurality of detection electrodes for detecting a change in capacitance; a shield electrode surrounding the plurality of detection electrodes so as to restrict a detection range of the capacitance and having an opening in a direction of detection; and a contact detecting electrode for detecting contact disposed along a longitudinal direction of the sensor, wherein the detection electrodes are disposed at a position close to the opening in the shield electrode and at a position far from the opening in the shield electrode, the contact detecting electrode is disposed on a back side in the direction of detection of the shield electrode, and the respective detection electrodes are integrally connected to each other in such a way as to be held in a separate state, the detection electrodes and the shield electrode are integrally connected to each other in such a way as to be held in a separate state, and the shield electrode and the contact detecting electrode are kept in such a way as to be held in a separate state across a clearance in a natural state and are brought into contact with each other when the sensor is pressed in the direction of detection by contact of an object. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification