Photoelectric conversion device with protrusions
US9157792B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Oct 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/0407
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photoelectric conversion device includes a circuit board, a light emitting module, a light receiving module, and an optical coupling lens. The circuit board includes two protrusions apart from each other. The light emitting module and the light receiving module are mounted on the circuit board and are apart from each other. The optical coupling lens includes a light incident surface, a first converging lens, a second converging lens and two through holes are defined therein for locating purposes. The first converging lens and the second converging lens are formed on the light incident surface. Centers of the through holes are aligned with centers of the protrusions to ensure the perfect alignment of the light emitting module with the first converging lens, and the perfect alignment of the light receiving module with the second converging lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.