Title:
OPTICAL SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/111705
Kind Code:
A1
Abstract:
This optical sensor detects force from object contact and object proximity according to a light reception result. This optical sensor comprises: a first light source (31) for emitting light; a first light reception unit (32) for receiving light and generating a signal indicating a light reception result; a cover member (35) that is configured from an elastic body that deforms in response to external force, comprises a reflection part that reflects light and a transmission part that transmits light, and covers the first light source and first light reception unit; a force detection unit (30) for detecting force corresponding to the deformation of the cover member on the basis of a signal indicating a light reception result of the first light reception unit corresponding to the light emitted by the first light source; an optical device (21) provided outside the cover member; and a proximity detection unit (20) for detecting object proximity using the optical device and one from among the first light source and first light reception unit.
Inventors:
KATO TAKATOSHI (JP)
WATANABE HIROSHI (JP)
SUGAHARA KOHEI (JP)
AOKI YUTA (JP)
WATANABE HIROSHI (JP)
SUGAHARA KOHEI (JP)
AOKI YUTA (JP)
Application Number:
PCT/JP2020/035547
Publication Date:
June 10, 2021
Filing Date:
September 18, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01L5/00; G01L1/24; G01V8/20
Domestic Patent References:
| WO2014045685A1 | 2014-03-27 |
Foreign References:
| US20190341518A1 | 2019-11-07 | |||
| US20140326882A1 | 2014-11-06 | |||
| JP2010539474A | 2010-12-16 | |||
| JP2007071564A | 2007-03-22 | |||
| JPS6062496A | 1985-04-10 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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