A method for further processing of a glass tube semi-finished product includes: providing the glass tube semi-finished product, along with tube-specific data for the glass tube semi-finished product; reading the tube-specific data for the glass tube semi-finished product; and further processing of the glass tube semi-finished product including a step of thermal forming carried out at least in sections. At least one process parameter during the further processing of the glass tube semi-finished product including the step of thermal forming carried out at least in sections is controlled as a function of the tube-specific data for the glass tube semi-finished product. In this way, the further processing can be matched more efficiently to the particular characteristics of a glass tube semi-finished product to be processed or a particular subsection thereof, and the relevant characteristics of the particular glass tube semi-finished product do not need to be measured again.

There are provided a one-press manufacturing method for a glass container that can form uneven shapes on an inner peripheral surface of a glass container and a glass container that is obtained by the one-press manufacturing method. The one-press manufacturing method for a glass container includes the following steps (A) to (E); (A) a step of putting a gob in a pressing mold and then inserting a plunger, which includes an unevenness forming member provided so as to be capable of being received in the plunger, into the gob while the unevenness forming member is received in the plunger, (B) a step of forming a glass container having a finished shape, which includes an uneven shape on an inner peripheral surface thereof, by pressing the unevenness forming member against the surface of the gob, which comes into contact with the unevenness forming member, to the outside from the inside of the plunger, (C) a step of receiving the unevenness forming member in the plunger, (D) a step of extracting the plunger, in which the unevenness forming member is received, from the glass container having a finished shape that includes the uneven shape on the inner peripheral surface thereof, and (E) a step of transporting the glass container having a finished shape, which includes the uneven shape on the inner peripheral surface thereof, to a cooling mold and cooling the glass container having a finished shape.

A holding device (1) holds a lens (6) at its lens edge (5) with the aid of an adhesive connection (16, 17). The adhesive connection (16, 17) is applied only at one adhesive point or only at two spaced apart adhesive points (16, 17). Each holding device (1) provided with a lens (6) is positioned on the dip frame in such a manner that the lens (6) is positioned above its holding device (1). A method is provided for finishing lenses (6) wherein the lenses (6) are subjected to various sequential finishing steps of a finishing process and the lenses (6) are cemented to the same holding device during finishing. The application of adhesive is only at one adhesive point or at two spaced apart adhesive points (16, 17).

A holding device (1) holds a lens (6) at its lens edge (5) with the aid of an adhesive connection (16, 17). The adhesive connection (16, 17) is applied only at one adhesive point or only at two spaced apart adhesive points (16, 17). Each holding device (1) provided with a lens (6) is positioned on the dip frame in such a manner that the lens (6) is positioned above its holding device (1). A method is provided for finishing lenses (6) wherein the lenses (6) are subjected to various sequential finishing steps of a finishing process and the lenses (6) are cemented to the same holding device during finishing. The application of adhesive is only at one adhesive point or at two spaced apart adhesive points (16, 17).

A shape forming system according to one embodiment includes a mold assemblies; a heating unit; a pressing unit; a cooling unit; an isolation chamber configured to accommodate therein the heating unit, the pressing unit, and the cooling unit arranged in parallel with each other; and a conveyance unit configured to move the plurality of mold assemblies each of which is arranged on a plate provided in each of the heating unit, the pressing unit, and the cooling unit to thereby convey the mold assemblies in sequence.

The present invention provides an infrared-transmitting glass that is a chalcogenide glass, has a reduced Ge content, can sufficiently cover atmospheric windows, is free from highly toxic elements, such as Se and As, and is suitable for mold forming. Specifically, the present invention provides an infrared-transmitting glass suitable for mold forming, comprising, in terms of molar concentration: 0 to 2% of Ge, 3 to 30% of Ga, 10 to 40% of Sb, 45 to 70% of S, 3 to 30% of at least one member selected from the group consisting of Sn, Ag, Cu, Te, and Cs, and 0 to 30% of at least one member selected from the group consisting of Cl, Br, and I.

The present disclosure provides a large-area blank wherein no crystal-phase peak exists in the range of 2 10-70, and the degree of crystallinity of 0.00% in an X-ray diffraction analysis pattern using CuK rays, but crystalline particles having an average particle size of 10-70 nm are confirmed to be distributed in an amorphous SiO.sub.2Li.sub.2OAl.sub.2O.sub.3-series glass matrix from an SEM-based analysis, and the blank has a long-axis length of at least 60 mm and a thickness of at least 6 mm. The present disclosure has the following advantages: the blank is a workpiece having a large area and excellent processability such that processability can be improved during cutting, thereby reducing tool resistance and wear ratio, and increasing the tool lifespan; edge chipping can be reduced during processing; when fabricating multiple dental restorations successively by using a single blank, the blank use efficiency can be improved, and dental restoration productivity can be improved.

A blank mould base pressing system (9) for forming a burr-free mouth entry for a glass container to be produced, which blank mould base pressing system comprises a piston (9.1) which is operated by charging with gas pressure, preferably with compressed air (18), and a pressing element (10) having a pressing-element profile (10.3), wherein the piston (9.1), when it is charged with gas pressure on one side, brings the blank mould base pressing system (9) into a pressing position in relation to a glass gob (1) which is in a blank mould (2) and is to be moulded and, on contact of the pressing-element profile (10.3) with the glass gob (1), forms a base for the glass container to be produced, wherein the blank mould base pressing system (9) has a means for controlling or regulating the stroke of the piston (9.1), wherein said stroke of the piston (9.1) serves to compensate for mass fluctuations of the glass gob (1), and a method for producing a parison (1.1) by means of the aforementioned blank mould base pressing system (9), wherein the blank mould base pressing system (9) has an internal cooling device for cooling by means of a cooling medium, and a method for producing a parison (1.1) by means of the blank mould base pressing system (9) according to the invention.

An apparatus for processing cover windows includes a first mold including a first support a second support spaced apart from the first support, where the first support and second support are configured to hold processing targets; a second mold; and a third mold spaced apart from the second mold. The second mold includes a first pressurizing portion overlapping with the first support, having a first thickness, and a second pressurizing portion connected with the first pressurizing portion and configured to overlap with the first support, having a second thickness thinner than the first thickness. The third mold includes a third pressurizing portion overlapping with the second support, having a third thickness, and a fourth pressurizing portion connected with the third pressurizing portion and overlapping with the second support, having a fourth thickness thinner than the third thickness.

Disclosed are various approaches to creating optical windows in glass covers. To create the glass cover with the optical window, a sheet of glass is reformed using a mold that includes a male portion having a first recess and a female portion having a second recess. The female portion of the mold mates with the male portion of the mold. The first recess is configured to form a first gas pocket and the second recess is configured to form a second gas pocket when the male and female portions of the mold are mated, where a cross sectional area of each of the first recess and the second recess is less than 15 square millimeters. A portion of the reformed glass corresponding to the optical window is positioned between the first gas pocket and the second gas pocket.