Abstract:
A method for texturing a substrate and the resulting substrate. A substrate made of glass ceramic is textured using laser radiation to form a texture feature. The laser radiation may be applied with a degree of overlap. Additionally, the texture feature may be elongated or continuous in the circumferential direction. The radiation is applied such that the texture feature has smaller texture features formed thereon.
Abstract:
A support plate and method of making a support plate for biological or chemical testing or cell culture. The plate has a high density network of microwells formed therein. The wells are formed by a contact pressing technique whereby a network of protuberances are pressed into the surface of a thermoformable material.
Abstract:
Disclosed is a method of preparing refractive microlenses in a single step, utilizing laser-induced surface structure formation in semiconductor doped glasses (SDGs). The SDG materials, in conjunction with above-bandgap wavelength laser sources, are used to fabricate lenses that operate with light of below-bandgap wavelengths. In accordance with the teaching of this invention lenses on an approximately 5-500 .mu.m diameter scale are fabricated individually or in arrays by laser irradiation of absorbing glasses. The microlenses have controllable characteristics and can be fabricated to have focal lengths as short as tens of microns. The lenses are generally parabolic or spherical in shape and are highly reproducible.
Abstract:
A glass-made lid for a cooking pot, pan, and the like and a method of manufacture thereof are disclosed, wherein the glass-made lid includes a peripheral edge of a particular shape formed from a roundly-cut sheet glass by rotating either the sheet glass or a thermally-resistant forming roller to the other and the method provides such a glass-made lid having the features described above. For the purpose of the invention, the forming roller is provided adjacent to the sheet glass and includes a peripheral recess on the side facing the sheet glass so that the peripheral edge in its softened state can be formed to conform to the particular shape of the peripheral recess under the pressure of the forming roller when it is brought closer to the sheet glass. An additional thermally-resistant nipping roller includes two rolls for engaging the formed peripheral edge therebetween and reforming it to a particular shape. Finally, the formed sheet glass is formed by any applied heating so that it can have a curved surface.
Abstract:
Disclosed herein are glass-based articles having a first surface having an edge, wherein a maximum optical retardation of the first surface is at the edge and the maximum optical retardation is less than or equal to about 40 nm and wherein the optical retardation decreases from the edge toward a central region of the first surface, the central region having a boundary defined by a distance from the edge toward a center point of the first surface, wherein the distance is ½ of the shortest distance from the edge to the center point.
Abstract:
A process for forming a textured 3-D glass-based substrate includes texturing a first surface of a glass-based substrate and shaping the glass-based substrate into a three-dimensional shape. The surface profile of the substrate is non-planar. In some embodiments, texturing the first surface of the glass-based substrate provides the first surface with an average roughness of 10 nm to 2000 nm.
Abstract:
The invention relates to methods of producing a cap substrate, to methods of producing a packaged radiation-emitting device at the wafer level, and to a radiation-emitting device. By producing a cap substrate, providing a device substrate in the form of a wafer including a multitude of radiation-emitting devices, arranging the substrates one above the other such that the substrates are bonded along an intermediate bonding frame, and dicing the packaged radiation-emitting devices, improved packaged radiation-emitting devices are provided which are advantageously arranged within a cavity free from organics and can be examined, still at the wafer level, in terms of their functionalities in a simplified manner prior to being diced.
Abstract:
Methods are provided for laser processing arbitrary shapes of molded 3D thin transparent brittle parts from substrates with particular interest in substrates formed from strengthened or non-strengthened Corning Gorilla® glass (all codes). The developed laser methods can be tailored for manual separation of the parts from the panel or full laser separation by thermal stressing the desired profile. Methods can be used to form 3D surfaces with small radii of curvature. The method involves the utilization of an ultra-short pulse laser that may be optionally followed by a CO2 laser for fully automated separation.