Patent ID: 9075210
Filing Date: 2015-07-07
Classification: G02B

Abstract:
1. An optical transmission connecting assembly, comprising: a pair of optical-electrical conversion modules with one of the optical-electrical conversion modules being reversed 180 degrees relative to other one of the optical-electrical conversion modules, each optical-electrical conversion module comprising: a circuit board; a planar optical waveguide formed on the circuit board, and defining at least two inclined surfaces, for reflecting optical signals; a base plate electrically connected to the circuit board; a first mounting member detachably latched with the circuit board, and located between the circuit board and the base plate; at least two first lenses mounted on the first mounting member, and aligned with the at least two inclined surfaces; a second mounting member detachably latched with the circuit board, and located between the first mounting member and the base plate; at least two second lenses mounted on the second mounting member, and positioned between the at least two first lenses and the base plate, each of the at least two second lenses aligned with one corresponding inclined surface and one corresponding first lens; an optical signal emitting member mounted on the base plate, and aligned with one corresponding second lens, for converting electrical signals to optical signals; and an optical signal receiving member mounted on the base plate, and aligned with another one corresponding second lens, for converting optical signals to electrical signals; and an optical waveguide connecting the pair of optical-electrical conversion modules, and coupling with the planar optical waveguides of the pair of optical-electrical conversion modules, wherein the optical waveguide transmits optical signals to a corresponding one of the at least two inclined surfaces of the corresponding planar optical waveguide, and the corresponding one of the at least two inclined surfaces reflects the optical signals to a corresponding one of the at least two first lenses, the optical signals are further transmitted to the corresponding optical signal receiving member via the corresponding one of the at least two first lenses and the corresponding one of the at least two second lenses, the corresponding optical signal receiving member converts the optical signals to electrical signals to the corresponding circuit board, the corresponding optical signal emitting member converts the electrical signals to optical signals, and the optical signals are transmitted to the corresponding other one of the at least two inclined surfaces via the corresponding other one of the at least two second lenses and the corresponding other one of the at least two first lenses, and then are reflected by the corresponding other one of the at least two inclined surfaces to the planar optical waveguide for transmitting optical signals parallel to the circuit board and return to the optical waveguide, a surface of the circuit board adjacent to the first mounting member defines at least one first latching groove, the first mounting member comprises a main body and at least one first latching portion extending from the main body to the circuit board, and the at least one first latching portion latches in the at least one first latching groove.