What is disclosed is a lead-free glass, which is a V.sub.2O.sub.5—TeO.sub.2—RO (at least one selected from the group consisting of MgO, CaO, SrO, and BaO)—ZnO glass and has a low softening point, comprising: 5-55 wt % of V.sub.2O.sub.5, 5-75 wt % of TeO.sub.2, 1-25 wt % of RO (at least one selected from the group consisting of MgO, CaO, SrO, and BaO) in total, 0.1-6 wt % of ZnO, and 0.1-3 wt % of R.sub.2O (at least one selected from the group consisting of Li.sub.2O, Na.sub.2O, and K.sub.2O) in total. This glass can be used as a sealing material providing fluidity which is capable of being sealed at a temperature of 400° C. or less

A method for manufacturing an optical element is a method for manufacturing an optical element in which laser light is transmitted, reciprocated, or reflected, and the method includes a first step of obtaining a bonded element formed by subjecting a first element part and a second element part, both being transparent to laser light, to surface activated bonding with a non-crystalline layer interposed therebetween; and after the first step, a second step of crystallizing at least a portion of the non-crystalline layer by raising the temperature of the bonded element. In the second step, the temperature of the bonded element is raised to a predetermined temperature that is lower than the melting points of the first element part and the second element part.

Emobidments of a curved glass article are disclosed herein. The curved glass article includes a glass sheet first and second major surfaces. The glass sheet is bent to define a curved region disposed between flat sections. The curved glass article also includes a carrier adhered to the glass sheet. The carrier includes longitudinal strips and lateral strips. The longitudinal strips define the radius of curvature of the curved region. The lateral strips extend between the longitudinal strips. The glass sheet deviates 0.3 mm or less from planar in the flat sections. The longitudinal strips each have a width W.sub.long of 2 mm or less. The first lateral strips each have a width W.sub.lat of 20 mm or less. At least a portion of the width W.sub.lat of each lateral strip is located in the curved region and a flat section.

Emobidments of a curved glass article are disclosed herein. The curved glass article includes a glass sheet first and second major surfaces. The glass sheet is bent to define a curved region disposed between flat sections. The curved glass article also includes a carrier adhered to the glass sheet. The carrier includes longitudinal strips and lateral strips. The longitudinal strips define the radius of curvature of the curved region. The lateral strips extend between the longitudinal strips. The glass sheet deviates 0.3 mm or less from planar in the flat sections. The longitudinal strips each have a width W.sub.long of 2 mm or less. The first lateral strips each have a width W.sub.lat of 20 mm or less. At least a portion of the width W.sub.lat of each lateral strip is located in the curved region and a flat section.

A watch glass includes a first glass, a second glass and a decorative element. The second glass is connected to the first glass via a connecting intermediate layer. The decorative element is inserted in a setting, which is arranged in a watch glass recess. The watch glass recess is formed by a first recess in the first glass and a second recess in the second glass. Here, a space of the watch glass recess is defined by the first glass, the second glass and the setting. The space is filled with connecting material of the connecting intermediate layer, so that the setting is connected via the connecting material to the first class and the second glass.

A watch glass includes a first glass, a second glass and a decorative element. The second glass is connected to the first glass via a connecting intermediate layer. The decorative element is inserted in a setting, which is arranged in a watch glass recess. The watch glass recess is formed by a first recess in the first glass and a second recess in the second glass. Here, a space of the watch glass recess is defined by the first glass, the second glass and the setting. The space is filled with connecting material of the connecting intermediate layer, so that the setting is connected via the connecting material to the first class and the second glass.

A window glass structure according to one aspect of the present invention includes a window glass for a vehicle that has a surface provided with a conductive layer having a predetermined pattern, and a connection terminal that is soldered to the conductive layer. The connection terminal includes a first joining portion that is joined to the conductive layer by soldering using a lead-free solder, a first side plate that is linked to the first joining portion and extends in a direction of separation from the surface of the window glass, a second joining portion that is joined to the conductive layer by soldering using a lead-free solder, a second side plate that is linked to the second joining portion and extends in a direction of separation from the surface of the window glass, a bridge portion that extends so as to link the two side plates, and a terminal portion configured to be linked to the bridge portion so as to have a face that is oriented in a direction different from directions in which faces of the two side plates and the bridge portion are oriented, at a position separated from regions to which the first side plate and the second side plate are linked.

A window glass structure according to one aspect of the present invention includes a window glass for a vehicle that has a surface provided with a conductive layer having a predetermined pattern, and a connection terminal that is soldered to the conductive layer. The connection terminal includes a first joining portion that is joined to the conductive layer by soldering using a lead-free solder, a first side plate that is linked to the first joining portion and extends in a direction of separation from the surface of the window glass, a second joining portion that is joined to the conductive layer by soldering using a lead-free solder, a second side plate that is linked to the second joining portion and extends in a direction of separation from the surface of the window glass, a bridge portion that extends so as to link the two side plates, and a terminal portion configured to be linked to the bridge portion so as to have a face that is oriented in a direction different from directions in which faces of the two side plates and the bridge portion are oriented, at a position separated from regions to which the first side plate and the second side plate are linked.

A structure body according to an embodiment of the present disclosure includes: a first base having one surface, and having a density lower than a density that is determined by a crystal structure and a composition of a constituent material; a second base disposed to face the one surface of the first base; and a buffer layer provided between the first base and the second base, and containing at least a metal element.

A structure body according to an embodiment of the present disclosure includes: a first base having one surface, and having a density lower than a density that is determined by a crystal structure and a composition of a constituent material; a second base disposed to face the one surface of the first base; and a buffer layer provided between the first base and the second base, and containing at least a metal element.