In the conventional direct press method, it was difficult to control the weight of molten glass gob when manufacturing a small precision glass component and thus the weight of the glass gob varies widely. Accordingly, the problem is that the precise molding cannot be expected stably. As a solution, the present invention provides a mold for molding a glass-made optical component and a manufacturing method using the mold, the mold comprising: a female mold which has a lower mold of a molding mold for molding the glass-made optical component on an outer peripheral portion of a concave surface of the female mold; a male mold which has a convex surface combined with the concave surface of the female mold; and a ring mold which is arranged on an outer peripheral portion of the male mold, the ring mold having an upper mold of the molding mold for molding the glass-made optical component, wherein molten glass gob introduced into the concave surface of the female mold is configured to be pressed from above by the male mold having the convex surface so that the molten glass gob is injected into a space formed between the lower mold and the upper mold of the molding mold.

The invention relates to a method for producing glass tubes with a cross section of a noncircular form by reshaping. This method includes at least providing a glass tube, heating the glass tube, providing at least one reshaping tool, which has a forming body with a forming area for reshaping the heated glass tube, the forming body including at least one open-porous material, setting a gas pressure in the interior of the reshaping tool lower than 90 kPa, so that a negative pressure is produced on the forming area, and reshaping the heated glass tube by applying a compressive force perpendicularly to the longitudinal axis of the glass tube, the compressive force being generated by the reshaping tool and being applied to the outer surface of the glass tube, and the outer surface of the glass tube being fixed by the negative pressure.

There are provided a lens forming mold, and a manufacturing method for a cylindrical lens, with which cylindrical lenses having good mass productivity can be manufactured. A lens forming mold for forming a molding on which a plurality of cylindrical surfaces are arranged in parallel includes: a first mold including a plurality of cylindrical surface forming portions that are arranged in parallel at equal intervals; and a first flat surface forming portion that is provided between adjacent cylindrical surface forming portions; and a second mold that sandwiches the glass material and faces the first mold when the molding is molded, in which the second mold includes a second flat surface forming portion that faces the plurality of cylindrical surface forming portions and the first flat surface forming portion.

A method of forming a glass-based article comprises depositing molten glass onto a first molding member and pressing the molten glass between the first and second molding members by moving the first molding member and the second molding member towards one another. The pressing of the molten glass comprises moving a portion of one of the first and second molding members relative to a remaining portion thereof to form a first reduced-area pressing zone and, after formation of the first reduced-area pressing zone, moving the portion relative to the remaining portion to form a second reduced-area pressing zone where the molten glass is compressed between the first and second molding members.

Systems and methods for texturing substrates (e.g., glass, metal, and the like) and the textured substrates produced using such systems and methods are disclosed. An exemplary textured substrate includes a surface having a portion with a root-mean-square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns. An exemplary system for texturing a substrate includes a plunger with a textured surface, where a portion of the textured surface has a root-mean-square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns. An exemplary method for texturing a substrate includes the steps of generating a pattern defining a texture, and 3-D printing the pattern on the substrate to form the texture.

The present discloses a mold for processing glass includes a concave mold provided with a cavity and a convex mold matched with the concave mold, the concave mold includes an inner wall for forming the cavity in a surrounding manner, the convex mold includes an outer surface, during mold closing, the convex mold extends into the cavity and is spaced from the inner wall of the cavity, a molding space for molding a three-dimensional glass structure is formed by the outer surface, facing the inner wall, of the convex mold and the inner wall of the cavity jointly in a surrounding manner. The present disclosure further discloses a method for processing glass. By the mold and method for processing glass provided by embodiments of the present disclosure, cracking of a three-dimensional glass product in a processing course can be prevented, and the yield is improved.

The present disclosure relates to a glass tile and a method of making a glass tile using a glass pressing technique. The glass tile may include a tile body of substantially homogenous glass material, an annular rim extending in a marginal portion of the tile body, and a cavity provided in a central portion of the tile body such that the glass tile forms a multi-sided compartment. A predefined texture may be disposed on at least part of the glass tile to provide a desired visual effect and/or a desired optical effect. The glass tile may be incorporated into a decorative assembly or structure such as flooring, roofing, doors and windows, landscaping and facades, and lighting.

A cover window manufacturing apparatus includes a plurality of fixed plates, a plurality of moving plates, a plurality of molds and a driver. The plurality of fixed plates is layered and spaced apart at a distance from each other. The plurality of moving plates is layered, spaced apart at a distance from each other and respectively disposed under the plurality of fixed plates. A plurality of connection members integrally connects the plurality of moving plates with each other. The plurality of molds is respectively provided on the plurality of moving plates, and inner spaces for molding the cover window are respectively defined in the plurality of molds. The driver is coupled to one of the plurality of moving plates, and is configured to move the plurality of moving plates towards the plurality of fixed plates such that the plurality of molds are pressed to the plurality of fixed plates.

A glass plate includes a first surface and a second surface that is opposite to the first surface. A concave portion is formed on the first surface toward the second surface side with reference to the first surface. A convex portion is formed on the first surface toward a side opposite to the second surface with reference to the first surface.

There are provided a lens forming mold, and a manufacturing method for a cylindrical lens, with which cylindrical lenses having good mass productivity can be manufactured. A lens forming mold for forming a molding on which a plurality of cylindrical surfaces are arranged in parallel includes: a first mold including a plurality of cylindrical surface forming portions that are arranged in parallel at equal intervals; and a first flat surface forming portion that is provided between adjacent cylindrical surface forming portions; and a second mold that sandwiches the glass material and faces the first mold when the molding is molded, in which the second mold includes a second flat surface forming portion that faces the plurality of cylindrical surface forming portions and the first flat surface forming portion.