An embodiment comprises a lens driving part including a lens, a connection substrate connected to the lens driving part, and a connector part connected to the connection substrate. The connector part comprises a substrate including, on the upper surface thereof, a cavity and a ground layer, a noise shield part located within the cavity of the substrate and contacting the ground layer, and a reinforcement member located on the noise shield part. The reinforcement member is located in the cavity of the substrate and on the upper surface of the substrate. In a top view, the length of one side of the noise shield part is less than the length of one side of the cavity of the substrate.

A portable electric fence energizer is described, having a housing and an electric pulse generating circuit located within the housing. The energizer further includes a post securing mechanism configured to secure the housing relative to an electrically conductive post. The post securing mechanism includes at least one electrical contact configured to contact the post when secured by the post securing mechanism. A conductive link between the electrical contact and the electric pulse generating circuit may be used to provide an earth connection for the energiser, or an output connection between the electric pulse generating circuit and a wire of the electric fence.

A camera module comprises: a first body including a lens; a second body coupled to the first body; and a printed circuit board arranged in the first body, wherein the first body includes a first ground portion protruding downward, and the second body includes a second ground portion protruding upward to contact the first ground portion.

Electromagnetic shields and methods are provided for electromagnetic shielding. The electromagnetic shields include a first material configured for reflection and/or absorption of electromagnetic radiation and that includes a polymer matrix with magnetic and/or conductive nanoparticles dispersed therein. The electromagnetic shield may be provided between a source of electromagnetic radiation and an object to provide the electromagnetic shielding to the object.

An assembly is provided which includes a package and a printed circuit board. The package includes a housing bounding a region and an acoustic sensor within the region. The housing includes a base with a first hole. The sensor is configured to generate signals indicative of sound received by the sensor through the first hole. The printed circuit board is in mechanical communication with the base and includes a second hole aligned with the first hole such that sound received by the second hole propagates through the first hole to the sensor. The printed circuit board further includes an electrically conductive layer, at least a portion of which extends across the second hole and is configured to allow the sound to propagate through the second hole and to at least partially shield the region containing the sensor from electromagnetic interference.

A camera module comprises: a first body including a lens; a second body coupled to the first body; and a printed circuit board arranged in the first body, wherein the first body includes a first ground portion protruding downward, and the second body includes a second ground portion protruding upward to contact the first ground portion.