Patent ID: 9683887
Date: 2017-06-20
CPC Classifications: G01J,G02B

Claim:
1. A photoelectric conversion device comprising: a circuit board comprising two positioning portions apart from each other; a light emitting module mounted on the circuit board; a light receiving module mounted on the circuit board and being spaced apart from the light emitting module; and an optical coupling lens comprising a body portion, the body portion comprising a bottom surface, a top surface, a front surface, and a rear surface, the bottom surface opposite to the top surface, the front surface opposite to the rear surface, the top surface defining a recess opening through the rear surface, a reflection surface being formed at a bottom of the recess, the reflection surface obliquely connecting the front surface to the bottom surface, the bottom surface facing the light emitting module and the light receiving module, two first converging portions formed on the bottom surface, the positioning portions visible from the optical coupling lens through the locating portions, such that centers of the positioning portions are aligned with centers of the locating portions to ensure perfect alignment of the light emitting module and the light receiving module with the first converging portions.