Reflective photoelectric sensor and object detecting method
US8248615B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Sep 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To reduce the probability of incorrect determination to detect an object reliably. A reflective photoelectric sensor is provided with: a light projecting device for emitting light; a light receiving device for receiving the optical feedback of the light that is emitted from the light projecting device; a determining portion for determining whether or not an object exists in the direction in which the light is emitted from the light projecting device, based on the optical feedback; and a reflection preventing plate of a moth-eye structure, disposed at a position that is on the optical path of the light that is emitted from the light projecting device at a position that is more distant than the location wherein the object is anticipated to appear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.