Glazing unit for underwater objects windows consisting of panes of mineral glass placed in circumferential clamp ring and on borders between panes of mineral glass have circumferential spacers, which have sealing in contact area with pane of mineral glass, characterized in that, glazing unit have at least two panes of mineral glass (1) separated by a layer of low compressible liquid (2) while constructed set of panes of mineral glass (1) with circumferential spacers (3) and sealing (4) are border with circumferential seal (5) clamped by circumferential clamp ring (6).

Methods, systems, apparatuses, and computer program products are provided for a backlight assembly for a display device. The backlight assembly includes a transparent waveguide layer, a plurality of light sources, and a tunable grating layer. The light sources are arranged along an edge of the waveguide layer. Each light source transmits light into the waveguide layer through the edge. The grating layer is coupled to the waveguide layer, and has multiple rows. Each row of the grating layer is segmented into a series of cells so the grating layer is sectioned into an array of cells. Each cell is independently controllable to either not extract incident light received from within the waveguide layer, or to extract the incident light for emission from the backlight assembly. In another configuration, the waveguide layer is not present, and the light sources transmit light directly into an edge of the grating layer.

An antireflective switchable laminated glass construction having a switchable functional film formed of a switchable material layer, a first polymer substrate with a first transparent conductive coating, and a second polymer substrate with a second transparent conductive coating. The switchable functional film is sandwiched between first adhesive polymer interlayer and glass substrate and second adhesive polymer interlayer and glass substrate. The switchable laminated glass construction in an ON (transparent) state has a total light transmittance higher than 50% and a reflectance equal to or less than 13%, as measured from at least one side of the switchable laminated glass construction.