A method and apparatus for producing a radio frequency absorbing (RFA) or perfect microwave absorbing (PMA) printed circuit board (PCB) is described herein. A metamaterial layer may be applied to a low dielectric substrate. Resistive and capacitive components may then be added to the metamaterial layer. The metamaterial layer may then be formed into an RFA or PMA PCB, which may comprise a multi-layered assembly for absorption of electromagnetic radiation in a targeted frequency range such as the microwave frequency range in the PCB.

An embodiment of a camera module includes a holder configured such that the upper and lower portions of the holder are open and such that a first hole and a second hole, opposite to the first hole, are formed in the side surface of the holder, a first lens unit coupled to the upper portion of the holder, a second lens unit coupled to the lower portion of the holder, and a liquid lens disposed in the first hole and the second hole of the holder between the first lens unit and the second lens unit, the liquid lens protruding outward from the side surface of the holder, wherein at least a portion of the liquid lens may be spaced apart from the inner surface of the holder.

This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack of at least one high refractive index layer (HI) having a refractive index higher than or equal to 1.55 and at least one low refractive index layer (LI) having a refractive index lower than 1.55, characterized in that: said at least one high refractive index layer (HI) is in direct contact with said at least one low refractive index layer (LI) forming a bilayer, said bilayer has a physical thickness lower than or equal to 60 nm, said bilayer is, in the direction moving away from said transparent substrate, in second to last place in said multilayered antireflective coating, said multilayered antireflective coating has a mean reflection factor R.sub.UV between 280 nm and 380 nm, lower than 5% for an angle of incidence in the range from 20 to 50.

Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.

Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.

Disclosed are a lens driving device, a camera device and an electronic apparatus. The lens driving device has a stator and a mover moving relative to the stator. The stator has a non-conductive base and a non-conductive housing assembled on the base. The stator is quadrilateral observed from the optical axial direction of the lens. The stator has one of a pair of magnets or a pair of coils disposed respectively on two opposite edges of the quadrilateral. The mover has the other of the pair of magnets or the pair of coils. The pair of coils are respectively opposed to the pair of magnets. The other two opposite edges or the quadrilateral are not provided with the magnets and the coils or a conductive component limning at least one kind of the base, the housing, the magnets or the coils.

Embodiments of this application relate to the technical field of camera modules to resolve an issue of miniaturization of camera modules. The embodiments of this application provide a camera module and an electronic apparatus. The camera module includes: a circuit board; an image sensor and a driver circuit that are located on the circuit board; an upper lens barrel and a lower lens barrel that are located on a side of the image sensor away from the circuit board; a connecting circuit located on the lower lens barrel; and an adjustable lens disposed inside between the upper lens barrel and the lower lens barrel. The adjustable lens is electrically connected to the driver circuit through the connecting circuit, so as to deform under driving of the driver circuit to adjust a focal power of the camera module. Such camera module has an advantage of small volume ratio.

Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.

Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.

In one aspect, apparatus are described herein. In some implementations, an apparatus comprises a housing disposed in or on an exterior surface of a vehicle, a light emitting diode disposed in the housing, and an electrically conductive layer disposed over the light emitting diode and in an optical path of the light emitting diode. Further, the electrically conductive layer and the housing together form a Faraday cage surrounding the light emitting diode. Additionally, in some cases, the electrically conductive layer has an optical transparency of at least 70% in the visible region of the electromagnetic spectrum.