An optical port shielding and fastening apparatus is configured to be installed in the optical module. The optical module includes a housing assembly and an optical component located in the housing assembly. The optical port shielding and fastening apparatus includes a fastener and an electromagnetic wave absorbing piece. The fastener is fastened in the housing assembly. The electromagnetic wave absorbing piece is fastened on a side that is of the fastener and that faces an outside of the housing assembly. A first mounting hole and a second mounting hole are correspondingly provided on the fastener and the electromagnetic wave absorbing piece. The optical component passes through the first mounting hole and the second mounting hole in sequence. This application provides an optical port shielding and fastening apparatus, an optical module, and a communications device, to resolve poor optical port shielding performance of an optical module in the related technology.

A communication system having a circuit board with an airflow opening includes a receptacle cage configured to be mounted to the circuit board adjacent a communication connector. The receptacle cage has walls including a front wall, a rear wall and side walls defining a cavity. A module channel is defined in the cavity configured to receive a pluggable module. The module channel has a module port at the front wall that receives the pluggable module. An airflow channel is defined by at least one of the walls of the receptacle cage located between the module channel and the circuit board. The airflow channel is configured to be in flow communication with the airflow opening in the circuit board for cooling the pluggable module in the module channel. The airflow channel has an airflow port at the front wall.

A semiconductor device includes an optical source; a photoconductive switch triggered by the optical source; and an enclosure unit that contains the optical source and the photoconductive switch in a single integrated package. The optical source may output a laser. The optical source may be a diode. The enclosure unit may be conductive. The enclosure unit may be non-conductive. The device may include an electrical connector operatively connected to the optical source. The electrical connector may provide power and control signals to the optical source. The electrical connector may be attached to an outer surface of the enclosure unit.

An electronic device can include a housing defining an aperture and at least partially defining an internal volume of the electronic device, an electromagnetic radiation emitter and an electromagnetic radiation detector disposed in the internal volume, and an optical component disposed in the aperture. The optical component can include a first and second transparent portions disposed above the electromagnetic radiation detector and the electromagnetic radiation emitter, and an opaque portion disposed between the first and second transparent portions. A conductive component can be in electrical communication with the opaque portion and one or more components of the electronic device.

A lens moving apparatus is disclosed. The lens moving apparatus includes a bobbin equipped with at least one lens, a coil and a driving magnet arranged opposite to each other for moving the bobbin in an optical axis direction of the lens through interaction therebetween, a first circuit board for supplying electric current required by the coil, and a cover can and a base coupled to, contacted to, supported at, fixed to, or temporarily fixed to each other for forming a space in which the bobbin, the driving magnet, and the first circuit board are received, wherein the cover can is connected to a second circuit board having an image sensor mounted thereon.

A data processing device may include an internal volume that is sealed from space outside the internal volume and an optical system. The optical system may include a first portion, disposed in the internal volume, adapted to receive network data units from devices disposed in the internal volume and a second portion of the optical system. The optical system may also include the second portion, disposed outside of the internal volume, adapted to obtain the network data units from the first portion via an optical connection using transmission at optical frequencies.

An optical module optimized for EMI shielding performance and electromagnetic shielding structure of the optical module includes a base, an upper cover, and an unlocking device connected by an unlocking handle and a movable unlocking piece; the base is butted and clamped with the upper cover to form a limiting groove for accommodating the unlocking latch on both sides of the movable unlocking piece, the unlocking latch is correspondingly slidably fitted in the limiting groove; the upper end of the unlocking latch on each side is provided with a first notch, which is used to make way for the base EMI lug boss set on the base, the lower end of the unlocking latch on each side is provided with a second notch, which is used to make way for the upper cover EMI lug boss set on the upper cover.

The present disclosure discloses an anti-cross-lighting structure. The anti-cross-lighting structure includes a support frame, a plurality of light-guiding elements located beside the support frame, and a shielding piece mounted on the support frame. The light-guiding elements are arranged on a same side of the support frame and forms at least one group. The shielding piece wraps over the light-guiding elements. The shielding piece includes a number of middle blocking portions. Each middle blocking portion isolates the light-guiding elements which are adjacent to each other. The anti-cross-lighting structure of the present disclosure effectively avoids the cross-lighting phenomenon and also has a stable structure.

A communication system includes a receptacle connector assembly including a receptacle cage and a communication connector having an inner receptacle connector and an outer receptacle connector. The communication system includes a pluggable module received in the receptacle cage to mate with the communication connector. The pluggable module includes a pluggable body defining a module cavity. The pluggable module includes a module circuit board having mating pads at a mating edge of the module circuit board plugged into the inner receptacle connector and connector pads at a mounting location remote from the mating edge. The pluggable module includes a plug connector mounted to the mounting location. The plug connector includes plug contacts extending between a plug mating end and a plug mounting end. The plug mating end is plugged into the outer receptacle connector.

A data processing device may include an internal volume that is sealed from space outside the internal volume and an optical system. The optical system may include a first portion, disposed in the internal volume, adapted to receive network data units from devices disposed in the internal volume and a second portion of the optical system. The optical system may also include the second portion, disposed outside of the internal volume, adapted to obtain the network data units from the first portion via an optical connection using transmission at optical frequencies.