Provided are a glass panel unit and a method for manufacturing the glass panel unit, both of which are designed to overcome the problem of poor handleability of known glass panel units with no through holes. A glass panel unit includes a first panel, a second panel, a seal, and a boundary wall. The seal has a frame shape and hermetically bonds respective peripheral edge portions of the first panel and the second panel. The boundary wall partitions an internal space into a first space as a hermetically sealed evacuated space and a second space spatially separated from the first space. The first panel has a first through hole provided through a portion, corresponding to the second space, of the first panel. The second panel has a second through hole provided through a portion, corresponding to the second space and facing the first through hole, of the second panel.

An electro-optic element having enhanced durability by the addition of an additive. The additive may enhance the durability of the electro-optic element by reducing or eliminating the effects of water on species with the electro-optic element, such as the electrolyte. Specifically, the additive may operate to reduce or eliminate the formation and/or accumulation of hydrogen fluoride within the electro-optic element by interaction of the electrolyte with water or alcohol molecules. In some embodiments, the additive may be an organosilicon species, such as (3-cyanopropyl) dimethylfluorosilane.

A glazing unit with a glass panel that is low in reflectance for RF radiation, a coating system that is high in reflectance for RF radiation disposed on the glass panel and creating onto the glazing unit a dual band bandpass filter. The glazing unit further features at least one frequencies selective decoated portion of the coating system extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z; having a width, DW, measured along the longitudinal axis, X, and a length, DL, measured along the vertical axis, Z. The frequencies selective decoated portion includes a first decoated element with a plurality of unit cells forming a regular grid, and a plurality of second decoated elements wherein a second decoated element is placed in each unit cell of the first decoated element and no second decoated element is in contact with the first decoated element.

A vacuum insulating glazing unit includes a first infrared reflecting coating and a second infrared reflecting coating. A first glass pane has a thickness, Z1, and an energetical absorptance EA1, and bears the first infrared reflecting coating on its outer pane face. A second glass pane has a thickness, Z2, and an energetical absorptance, EA2. A set of discrete spacers is positioned between the glass panes and forms an array having a pitch, λ. An internal volume, V, is defined by the first and second glass panes and the set of discrete spacers, and has a vacuum of absolute pressure of less than 0.1 mbar. The second infrared reflecting coating is borne on a glass pane face that faces the internal volume, V. The first glass pane is thicker than the second glass pane (Z1>Z2), and in that ΔEA≤0.0029 ΔZ.sup.2/mm.sup.2−0.041 ΔZ/mm+0.6375.

A method for manufacturing a multi-layer stack includes bonding a transparent plate to an outer surface of at least one of a first glass panel or a second glass panel of a glass panel unit with an intermediate film interposed therebetween. The glass panel unit includes: the first glass panel; the second glass panel; and an evacuated space provided between the first glass panel and the second glass panel. A plurality of spacers are provided in the evacuated space between the first glass panel and the second glass panel. A pressure applied for bonding the glass panel unit and the transparent plate together is less than a compressive strength of the plurality of spacers.

A device for converting solar radiation is described wherein the device comprises an inorganic luminescent material comprising a host material doped with Mn.sup.5+ ions for converting radiation of the UV and/or visible part of the electromagnetic spectrum into radiation of the near-infrared radiation part of the electromagnetic spectrum, preferably the infrared part between 1150 nm and 1250 nm, preferably around 1190 nm (the infrared emission peak of Mn.sup.5+); or, an amorphous host material doped with Sm.sup.2+ or Tm.sup.2+ ions, the amorphous host material including the elements Al, Si, O and N (SiAlON) for converting radiation of the UV and/or visible part of the electromagnetic spectrum into radiation of a longer wavelength, preferably a longer wavelength between 650 nm and 800 nm or a longer wavelength of around 1140 nm; and, at least one photovoltaic device for converting at least part of the converted radiation into electrical power.

The insulated glass unit (IGU) that replicates a historic glass window includes a single simulated divided light glass pane, a low-e glass layer, and spacer grills disposed therebetween. True divided light glass window panes are scanned to obtain surface characteristic data, subsequently used to design a pane that includes slumped areas corresponding to the unique topological characteristics of antique glass, separated by flat areas. The flat surfaces provide for sealing the IGU with the spacer grills, while the optics of the original historic glass are preserved via the slumped areas. A mold of the designed pane is then 3D printed in furan resin sand, and a glass layer is melted over the mold to create a one-piece pane that includes the antique features. Accurate replication of these windows enables historic building renovation with modern insulated windows with less sealing while retaining the original appearance, providing improvements in longevity and efficiency.

A vacuum insulating glazing unit has a length equal to or greater than 800 mm and a width equal to or greater than 500 mm. The unit includes first and second float annealed glass panes having thicknesses Z1 and Z2, respectively. The thickness Z2 is equal to or greater than 4 mm and equal to or greater than (λ−15 mm)/5. The thickness ratio Z1/Z2 is equal to or greater than 1.10. The unit also has a set of discrete spacers positioned between the first and second glass panes and forming an array having a pitch (λ) between 10 mm and 40 nm; a hermetically bonding seal sealing the distance between the first and second glass panes over a perimeter; and an internal volume having a vacuum pressure of less than 0.1 mbar.

A laminated body includes a transparent substrate having a laminated film. The laminated film includes a dielectric layer containing silicon nitride, a barrier layer composed of a single film or two or more films, and a metal layer containing silver. The barrier layer has a thickness of from 0.1 nm to 10 nm. Each film of the barrier layer includes a material having a crystal structure of a face-centered cubic structure with a lattice constant of from 3.5 to 4.2, a hexagonal close-packed structure with a lattice constant of from 2.6 to 3.3, a body-centered cubic structure with a lattice constant of from 2.9 to 3.2, or a tetragonal crystal with a lattice constant of from 2.9 to 4.4. The metal layer has a thickness of from 7 nm to 25 nm. An orientation index P of the metal layer falls within a range from 4.5 to 20.

A triple glazing unit is disclosed. The triple glazing unit can include a first pane, a second pane, a third pane between the first pane and the second pane, an electrochemical device coupled to the third pane and between the third pane and the second pane, a first cavity between the first pane and the third pane, and a second cavity between the second pane and the third pane, wherein a distance between the first pane and the third pane is greater than a distance between the second pane and the third pane.