A vehicular variable reflectance mirror reflective element includes a rear glass substrate joined with a front glass sheet via a perimeter seal. An electrochromic medium disposed in an interpane cavity established between the rear glass substrate and the front glass sheet and bounded by the perimeter seal. With the rear glass substrate joined with the front glass sheet, the front glass sheet is cut at a front glass substrate portion to form a front glass substrate. A back plate is attached at the rear of the rear glass substrate. With the front glass sheet cut at the front glass substrate portions to form the front glass substrate having the rear glass substrate joined therewith via the perimeter seal, and with the back plate fixtured at a finishing tool, the cut edges of the front glass substrate are processed to provide a finished perimeter edge of the front glass substrate.

A method of manufacturing a variable reflectance mirror reflective element suitable for use in a vehicular rearview mirror assembly includes providing a front glass sheet and a plurality of rear glass substrates, and joining and spacing the rear glass substrates at the front glass sheet via perimeter seals. After the rear glass substrates are joined with the front glass sheet, the front glass sheet is cut to form a plurality of front glass substrates. A back plate is attached at the rear side of each of the rear glass substrates. After cutting the front glass sheet, the back plate of the respective rear glass substrate and cut front glass substrate portion is fixtured at a finishing tool, which processes the cut edges of at least the respective front glass substrate to provide a finished perimeter edge of the front glass substrate to form a variable reflectance mirror reflective element.

A method of manufacturing a variable reflectance mirror reflective element suitable for use in a vehicular rearview mirror assembly includes providing a front glass sheet and a plurality of rear glass substrates, and joining and spacing the rear glass substrates at the front glass sheet via perimeter seals. After the rear glass substrates are joined with the front glass sheet, the front glass sheet is cut to form a plurality of front glass substrates. A back plate is attached at the rear side of each of the rear glass substrates. After cutting the front glass sheet, the back plate of the respective rear glass substrate and cut front glass substrate portion is fixtured at a finishing tool, which processes the cut edges of at least the respective front glass substrate to provide a finished perimeter edge of the front glass substrate to form a variable reflectance mirror reflective element.

A substrate carrier made of glass for processing a transparent or transmissive substrate by electromagnetic radiation includes a first upper side serving as a substrate support and a lower side facing away from the upper side. The substrate support and/or the lower side of the substrate carrier has a structuring produced by modifications in the substrate carrier and a material removal by action of an etching medium in respective regions of the modifications in the substrate carrier. The structuring has a plurality of adjacent and/or merging conical recesses. At least one of the conical recesses is configured as a through-hole of the substrate carrier between the substrate support and the lower side, and a plurality of other ones of the conical recesses are configured as depressions.

A metallic lustrous member with radio wave transmissibility is provided, which is capable of being easily produced, while ensuring a structure in which not only chromium or indium but also any of some other metals such as aluminum is formed as a metal layer on a continuous surface of any of various materials, and also an article using the member is provided. A production method for a metallic lustrous member with radio wave transmissibility, which is capable of easily forming, as a metal layer, not only chromium or indium but also any of some other metals such as aluminum, on a continuous surface of any of various materials. The metallic lustrous member comprises a substrate having radio wave transmissibility, and an aluminum layer formed directly on a continuous surface of the substrate. The aluminum layer has a discontinuous region including a plurality of separated segments which are mutually discontinuous.

Vacuum insulating glass or other such vacuum insulating material may be provided with a first plate and a second plate that are arranged in mutually opposed fashion so as to straddle therebetween a space of a gap that is a vacuum layer. The first plate may have, in order of lamination from the exterior, a first electrically conductive layer, and a first charged insulator. The second plate may have, in order of lamination from the exterior, a second electrically conductive layer, and a second charged insulator which is charged with charge of the same polarity as the first charged insulator. A repulsive force that is a Coulomb force which acts between the first charged insulator and the second charged insulator may substantially balance and counteract a tendency of ambient atmospheric pressure to reduce the length of the gap between the first plate and the second plate.

Provided is a radiative cooling device that provides coloration of the radiative surface while maximally avoiding reduction in its radiative cooling performance due to absorption of solar light. An infrared radiative layer for radiating infrared light from a radiative surface and a light reflective layer disposed on the side opposite to the presence side of the radiative surface of the infrared radiative layer are provided in a mutually stacked state. The light reflective layer is arranged such that a first metal layer made of silver or silver alloy and having a thickness equal to or greater than 10 nm and equal to or less than 100 nm, a transparent dielectric layer and a second metal layer reflecting light transmitted through the first metal layer and the transparent dielectric layer are stacked in this order on the side closer to the infrared radiative layer. The transparent dielectric layer has a thickness that causes a resonance wavelength of the light reflective layer to be a wavelength included in wavelengths equal to or greater than 400 nm and equal to or less than 800 nm.

The present invention provides a glass sheet, including as a glass composition, in terms of mass %, 50% to 75% of SiO.sub.2, 0% to 25% of Al.sub.2O.sub.3, 0% to 25% of B.sub.2O.sub.3, 0% to 8% of Li.sub.2O, 5% to 25% of Na.sub.2O, 0% to 5% of K.sub.2O, and 0% to 20% of MgO+CaO+SrO+BaO+ZnO, and having a softening point of 745 C. or less.

The purpose of the present invention is to provide a perpendicular magnetic recording medium which uses an Ru seed layer having a (002)-oriented hcp structure, and has a magnetic recording layer including a (001)-oriented L1.sub.0 ordered alloy suitable to perpendicular magnetic recording. The magnetic recording medium of the present invention includes a substrate, a first seed layer containing Ru, a second seed layer containing ZnO, a third seed layer containing MgO, and a magnetic recording layer containing an ordered alloy, in this order, the first seed layer having the (002)-oriented hexagonal closest packed structure.

A glass-based preform for a mirror of a heads-up display (HUD) system, including a glass-based substrate having a first major surface, a second major surface opposite to the first major surface, and a minor surface connecting the first and second major surfaces; a first chamfer at an edge of the first major surface, the first chamfer having a first end at an intersection of the first chamfer and the first major surface and having a second end at an intersection of the first chamfer and the minor surface; and a second chamfer at an edge of the second major surface, the second chamfer having a first end at an intersection of the second chamfer and the second major surface and having a second end at an intersection of the second chamfer and the minor surface. The first chamfer has a different size or shape from the second chamfer.