Glasses Technology

High-magnetostriction Fe-rich metallic glasses in the form of ribbons presenta magnetoelastic resonance characterized by the frequency of the longitudinal vibrational mode ofthe sample, /spl omega//sub r/, which is a function of the applied static field, H. This value of/spl omega//sub r/ can be used to recognize different objects or the position of a single object ina field gradient, that is as a carrier of information. (more…)

United States Patent 3935019
Rapp January 27, 1976

Glasses Patent Abstract
Thermally crystallizable glasses are disclosed of the system: wherein RO is a BaO or SrO. Also disclosed are thermally crystallizable glasses of the system PbO — Nb.sub.2 O.sub.5 — GeO.sub.2. Glass-ceramics made from these glass systems have high dielectric constants and low dissipation factors or loss tangents, which glasses and glass-ceramics are suitable for use as capacitors and dielectrics, and particularly for thick-film dielectric pastes utilized in the manufacture of micro-electronic printed circuits. (more…)

We investigate dynamical systems of gauge symmetric Ising spin glasses usingthe method of the gauge transformation. Several exact relations are derived among dynamicalquantities such as the equilibrium auto-correlation function and the non-equilibrium remanentmagnetization. The same result as in the static case is obtained in terms of the equivalence of theferromagnetic and the spin glass order (more…)

Application of the sol-gel method to the fabrication of opticallyhigh-performance bulk glasses has been tried by many researchers in the world. Although to date ithas not been as successful as was expected at the beginning, there exist various high-performanceglasses (more…)

When fitting children for glasses, the emphasis must always be on ensuring that the glasses not only correct the visual problems but also feel and look good. Otherwise, they will not be worn. 2. There is a great value in creating an atmosphere in an optical shop that makes children want to visit. The process of visiting and selecting glasses should be fun for a child. (more…)

Glasses Patent Description
TECHNICAL FIELD TO WHICH THE INVENTION REFERS

[0001] The realization of traditional metallic frames for spectacles or sunglasses requires qualified manpower and adequate infrastructures. Several assemblage phases are normally necessary in order to have the finished glasses, thereby involving the use of different trinkets, frontal, bars, etc. The productive method for realizing frames for glasses described in this invention introduces a series of constructive simplifications which allow to avoid the trinkets and reduce the necessary manpower, thereby reducing costs and obtaining esthetical quality and structural sturdiness. This innovative approach will also allow to reuse the lenses, that usually represent the most expensive part of the glasses, since it will be easy to replace the frame alone, that will be compatible with the lenses and available in different shapes. (more…)

Glasses Patent Claims
1. Frame for glasses in continuous shape, characterized in that it is made from one metallic plate, wherein frontal, bars, bridge and nose pads are mutually connected and in particular way the hinge zone is replaced by the same elasticity of the material of the metallic plate, which has a thickness equal or less than 0,5 mm, wherein at least one incision communicating with the opening for a lens is provided in the surface of the frame. (more…)

United States Patent Application 20010055092
Kind Code A1
Mocciaro, Salvatore December 27, 2001

Glasses Patent Abstract
This invention refers to a way of producing frames for glasses of different types but all with the characteristic of lacking in weldings and in the hinge that normally joints the frontal with the bars since such a purpose has been absolved by the elasticity of the material. During the same production process also the exhibitor for the point of sale will be realized, thereby reducing costs, times and wastes. Besides, with a couple of spectacle or sun lenses, even if expensive, it will be possible to preserve them, while the frame will be replaced by a different one compatible with the couple of lenses. Frontal, bars and nose pads, that is all the structure of the glasses, are made at the same time from one metallic plate. Through different techniques such as the laser cut, the electric erosion and above all the photo-chemical etching technique, the metallic plate is worked and subsequently is folded up in the suitable way to achieve the definitive shape. A part of the plate will generate the frames for glasses, and another part will be used for the samples of color, while the remaining part that contains the whole will be used like an exhibitor of the same glasses, once folded up in the correct way. Part of the bending is transmitted to the frames, that have the right thickness for the purpose, by the same lenses with negative chamfer to be inserted in the elastic joint with the suitable shape. The compactness of the frames and of the exhibitor, when not folded up, facilitates the delivery and the storage of their collection. Besides, for removing the problem of holding the folded up glasses, a tubular sheath of plastic transparent material, in which the glasses will be put in, will be employed.

Glasses Patent Description
BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to lead-free bismuth-containing silicate glasses. The invention also relates to uses of these glasses. (more…)

United States Patent Application 20010046934
Kind Code A1
Naumann, Karin ; et al. November 29, 2001
Glasses Patent Abstract
The lead-free bismuth-containing silicate glasses, which are particularly suitable for use as funnel glass or neck glass for cathode ray tubes and as soldering glass, have the following respective compositions (in % by weight, based on oxide): SiO.sub.2 40-60; Bi.sub.2O.sub.3, 10-30; ZrO.sub.2, 0-3; Al.sub.2O.sub.3, 0.5-5; MgO, 0-6; CaO, 0.5-5; SrO, 1-15; BaO, 0-15; sum of the alkaline earth metal oxides, 2-20; ZnO, 0-2; Li.sub.2O, 0-10; Na.sub.2O, 1-10; K.sub.2O, 2-10; Cs.sub.2O, 0-3, sum of the alkali metal oxides, 5-20; CeO.sub.2, 0-8; WO.sub.3, 0.5-5; MoO.sub.3, 0-5 and Sb.sub.2O.sub.3, 0-0.6; and SiO.sub.2 30-50; Bi.sub.2O.sub.3, 20-40; ZrO.sub.2, 0-3; Al.sub.2O.sub.3, 0.5-5; MgO, 0-4; CaO, 0.5-4; SrO, 1-15; BaO, 0-15; sum of the alkaline earth metal oxides, 2-20; ZnO, 0-2; Li.sub.2O, 0-5; Na.sub.2O, 1-12; K.sub.2O, 2-15; Cs.sub.2O, 0-3, sum of the alkali metal oxides, 5-20; CeO.sub.2, 0-8; WO.sub.3, 0.5-5; MoO.sub.3, 0-5 and Sb.sub.2O.sub.3, 0-0.6. (more…)