Optical-electrical converting device with increased transmitting efficiency

摘要

An optical-electrical converting device includes a substrate, an electrical circuit layer, at least one auxiliary pad, and an optical-electrical converting lens. The electrical circuit layer includes at least one circuit portion. The optical-electrical lens includes at least one first supporting portion and at least one second supporting portion. Each of the at least one first supporting portion is positioned on a respective one of the at least one first circuit portion, and each of the at least one second supporting portion is positioned on a respective one of the at least one auxiliary pad. The electrical circuit layer and the at least one auxiliary pad are arranged on the substrate. The thickness of the at least one first circuit portion layer is substantially equal to the thickness of the at least one auxiliary pad.

主权项

1. An optical-electrical converting device, comprising:
a printed circuit board (PCB) comprising:
a substrate;an electrical circuit layer comprising at least one first circuit portion;at least one auxiliary pad; and a coupling lens comprising at least one first supporting portion and at least one second supporting portion, each of the at least one first supporting portion positioned on a respective one of the at least one first circuit portion, each of the at least one second supporting portion positioned on a respective one of the at least one auxiliary pad; at least one light emitting module; and at least one light receiving module; wherein the coupling lens comprises a main body defining a receiving groove, the receiving groove has a top wall and a plurality of sidewalls connected to the top wall, the at least one first supporting portion and the at least one second supporting portion are intersection portions of the sidewalls; the coupling lens further comprises at least two first converging lenses, the at least two first converging lenses are positioned on an inner surface of the top wall and are aligned with the at least one light emitting module and at least one light receiving module respectively, the PCB comprises at least two second circuit portions, each of the at least one light emitting module and at least one light receiving module are positioned on a respective one of the at least two second circuit portions; wherein the electrical circuit layer and the at least one auxiliary pad are arranged on the substrate, a thickness of each of the at least one first circuit portion is substantially equal to a thickness of each of the at least one auxiliary pad.