The present application relates to an optical device. The present application provides an optical device capable of varying transmittance, and such an optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.

A sensor-integrated glass assembly includes a first glass component including an automotive glass material, a second glass component including an interlayer material, the second glass component exterior to the first glass component, a third glass component including a high transmission glass material, the third glass component exterior to the second glass component such that the second glass component is positioned between the first and third glass components, and a single chip sensor having a sensor lens, the single chip sensor coupled with the second glass component. The single chip sensor is positioned on the interlayer component such that a transmission from the single chip sensor passes through the third glass component and does not pass through the first glass component.

The present disclosure relates to a method of providing a laminated vacuum insulated glass (VIG) unit, wherein the method comprises: —providing a lamination assembly (10) comprising a vacuum insulated glass (VIG) unit (11) comprising at least two glass sheets (11a, 11b) separated by a plurality of support structures (12) distributed in a gap (13) between the glass sheets (11a, 11b), and a lamination layer (2) arranged between one of the glass sheets (11a, 11b) of the vacuum insulated glass (VIG) unit (11) and a further sheet (3). The lamination assembly (10) is subjected to a heating step at a heating location so as to soften the lamination layer to provide a bonding between the vacuum insulated glass unit and the lamination layer (3), and a bonding between the further sheet (3) and the lamination layer (2). The heated lamination assembly (10) is then subjected to a cooling step provided by a cooling system (350), wherein said cooling step comprises providing a controlled cooling of one or both major outer surfaces (10a, 10b) of the heated lamination assembly (10) so as to cool said heated lamination assembly (10) to harden said lamination layer (2). The present disclosure additionally relates to use of a cooling system.

A laminated glazing includes a first glass sheet; at least one interlayer sheet made of thermoplastic polymer; optionally a solar-protection sheet or functional metal layer having reflective properties in the infrared region and/or in the solar radiation region; and at least one sheet of pressure-sensitive adhesive, in direct contact with a heat-sensitive functional sheet; a second glass sheet; the first glass sheet being in direct contact with the interlayer sheet; the second glass sheet being in direct contact with the sheet of pressure-sensitive adhesive.

The present disclosure relates to a method of providing a laminated vacuum insulated glass (VIG) unit (1), wherein the method comprises: providing a lamination assembly (10) comprising a vacuum insulated glass (VIG) unit (11) comprising at least two glass sheets (11a, 11b) separated by a plurality of support structures (12) distributed in a gap (13) between the glass sheets (11a, 11b), and a lamination layer (2) arranged between one of the glass sheets (11a, 11b) of the vacuum insulated glass (VIG) unit (11) and a further sheet (3). The further sheet (3) may be subjected to a first heating temperature (T1) by means of a first heating arrangement (9a), and the glass sheet (11a) of the vacuum insulated glass (VIG) unit (11) facing away from the further sheet (3) may be subjected to a second heating temperature (T2) by means of a second heating arrangement (9b), wherein the first heating temperature (T1) is higher than the second heating temperature (T2). The disclosure additionally relates to a system (100) for providing laminated vacuum insulated glass (VIG) units (1), and use of such a system.

A laminated glass for an automotive windshield according to one embodiment of the present invention includes: a resinous intermediate film layer; a curved first glass plate disposed on an exterior side; and a curved glass plate disposed on an interior side, the first and second glass plates being opposed to each other with the intermediate film layer interposed therebetween, wherein the first glass plate has a thickness ranging from 0.7 mm to 3 mm, wherein the second glass plate has a thickness ranging from 0.3 mm to 1.4 mm and being smaller than the thickness of the first glass plate, and wherein the second glass plate is made of a thermally-strengthened glass with a compressive stress of less than 5 MPa. With such a configuration, the laminated glass achieves improved safety to guard against the occurrence of an internal impact event.

The present disclosure provides a curved laminated glass including a curved soda lime glass and a curved thin plate glass provided on a concave surface of the curved soda lime glass, in which a thickness of the curved soda lime glass is larger than a thickness of the curved thin plate glass, and compressive stress is formed on a surface opposite to a surface of the curved thin plate glass adjacent to the curved soda lime glass.

Laminated glass includes a pair of glass plates, an intermediate film positioned between the glass plates, an electrically conductive heating material positioned between the glass plates and having a surface in contact with the intermediate film, a first bus bar and a second bus bar connected to the electrically conductive heating material and positioned between the glass plates, disposed such that the electrically conductive heating material is interposed therebetween in a plan view, third bus bars positioned between the glass plates, and connecting the first and second bus bars to a pair of electrode leads, and a fourth bus bar at least partly positioned between the glass plates, and superposed on a part of at least one of the first to third bus bars, wherein the electrically conductive heating material, the first to the third bus bars are integrally formed of a same material.

A manufacturing method of laminated curved glass includes steps: (1) providing a flat first glass plate and a flat second glass plate with a thickness of 0.1 mm to 2.2 mm; (2) impose the first glass plate and the second glass plate with strengthening treatment, the processed first glass plate and the processed second glass plate are in the shape of a flat plate, and the surface stress of the first glass plate or the second glass plate is 10-1000 MPa; and (3) Low temperature molding process, providing an adhesive film, and laminating the first glass plate processed in step (2), the adhesive film, and the second glass plate processed in step (2) in sequence, and then performing the low temperature press molding process to obtain the laminated curved glass. The method of the present bents the glass without high temperature to soften the glass.

Provided is an interlayer film for laminated glass with which change in partial wedge angle can be suppressed at the time of preparation of laminated glass, and double images can be suppressed in the laminated glass. The interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end; the thickness of the interlayer film does not increase evenly from the one end toward the other end, and an average rate of change in partial wedge angle determined by the following formula (X) is 10% or less when an interlayer film finally pressure-bonded is obtained through a predetermined process using the interlayer film for laminated glass as an interlayer film before pressure-bonding, and each partial wedge angle is measured in each of the interlayer film before pressure-bonding and the interlayer film after final pressure-bonding. Rate of change in partial wedge angle (%)=|(Partial wedge angle of interlayer film after final pressure-bonding−Partial wedge angle of interlayer film before pressure-bonding)/(Partial wedge angle of interlayer film before pressure-bonding)|×100 . . . Formula (X)