Reflection-type photointerrupter
US8053800B2 · kind B2 · utility
6Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
Abstract
A reflection-type photointerrupter of the present invention includes a substrate, a light emitting element and a light receiving element. The substrate includes a first surface, a second surface opposite the first surface, and a first and a second recesses that are open in the first surface side. The light emitting element is arranged in the first recess, while the light receiving element is arranged in the second recess. The light emitting element is capable of emitting light. The light receiving element is capable of receiving the light emitted from the light emitting element and reflected by an object to be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.