Reflection type sensor and optical encoder having the same
US11268833B2 · kind B2 · utility
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9Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 3, 2020 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reflection type sensor includes a light emitting element configured to emit light, a light receiving element configured to receive reflected light from a scale having a pattern, and a transparent member configured to cover the light emitting element and the light receiving element. A predetermined condition is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.