Abstract: An ambient light sensor includes a substrate, a metasurface disposed on the substrate, and an aperture layer disposed on the substrate. The metasurface includes a plurality of nanostructures and a filling layer laterally surrounding the plurality of nanostructures. The aperture layer laterally separates the metasurface into a plurality of sub-meta groups.

Abstract: A casing for sheltering electronic components (52, 83) is disclosed, comprising:—an air inlet (110) at a first position of the casing (11) and,—an air outlet at a second position of the casing (11). The air inlet (110) comprises a first plate (112) with at least one first aperture (190) therein. The inlet (110) also comprises a second plate (114) that is arranged between the first plate (112) and an inner part of the casing (11). The second plate comprises at least one second aperture (192).

Abstract: Described is a network element (10) comprising a mechanical frame (12). The frame (12) comprises at least one rail (96). The rail (96) comprises at least one first groove (106). The network element (10) also comprises at least one holding element (100) which is arranged in the first groove (106) and which is fastened to the first groove (106) by a fastening element (102). Furthermore, the network element (10) comprises at least one electrical or electronic device (52) which is fastened to the holding element (100), for example by the fastening element (102a) or by a second fastening element (103).

Abstract: A casing for sheltering electronic components (52, 83) is disclosed, comprising:—an air inlet (110) at a first position of the casing (11) and,—an air outlet at a second position of the casing (11). The air inlet (110) comprises a first plate (112) with at least one first aperture (190) therein. The inlet (110) also comprises a second plate (114) that is arranged between the first plate (112) and an inner part of the casing (11). The second plate comprises at least one second aperture (192).