Apparatus and method for adjusting output value of optical sensor having light-receiving element that receives regularly-reflected light and diffusely-reflected light
US11630408B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Apr 27, 2021 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | May 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0407
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical sensor comprises a first light-emitting element, a second light-emitting element, a light-receiving element, a first amplifier circuit and a second amplifier circuit. The light-receiving element receives reflected light from an object to be measured, and outputs an output value on the basis of a light receiving result of the light-receiving element. The amplifier circuits amplifies the output value output from the light-receiving element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.