A glass part includes a substrate and a texture reinforcement layer disposed on at least one surface of the substrate. The texture reinforcement layer includes a plurality of reinforcement units. Cross sections of an outer surface of each reinforcement unit in at least a horizontal direction and a vertical direction are in a hyperbolic shape or a parabolic shape.

The invention relates to an optical element for a vehicle headlight, in particular a motor vehicle headlight, having a first head lens array which is a compressed as a single piece from a transparent material and at least one second head lens array which is compressed as a single piece from the same or another transparent material. Said first head lens array and the second head lens array have respectively a connecting web which connects the at least one first head lens to a second head lens.

An optical glass contains the following components in molar percentage of cations: 2-20% of P.sup.5+, 20-40% of A1.sup.3+, 0.5-10% of Ba.sup.2+, 5-25% of Sr.sup.2+, 15-35% of Ca.sup.2+, and 1-15% of Mg.sup.2+, and contains the following components in molar percentage of anions: 83-95% of F.sup.− and 5-17% of O.sup.2−. The fluorophosphate optical glass has a refractive index (nd) of 1.42-1.45, an Abbe number (vd) of 93-96, a density (ρ) of 3.55 g/cm.sup.3 or less, a bubble degree of grade B or above, a thermal expansion coefficient of 160×10.sup.−7/K or less, a durability of water (D.sub.w) of grade 2 or above, and an excellent crystallization resistance performance.

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.

Provided is a mold manufacturing method that is capable of manufacturing a mold of a complex shape particularly of an optical element with sufficient shape accuracy and within a relatively short time. This mold manufacturing method includes: a step for forming a base made of metal into a first shape through machining; a step for coating the base with a resin layer; a step for forming the resin layer into a second shape; and a step for forming the base into a third shape through dry-etching.

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.

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 disclosure provides a suitable method for producing a headlight lens for a vehicle headlight, for example for a motor-vehicle headlight, wherein the headlight lens comprises an integral body made of glass, wherein the integral body comprises at least one light tunnel and one light-passage section having at least one optically active light exit surface, wherein the light tunnel comprises at least one light entry surface and, with a bend, transitions into the light-passage section in order to image the bend as a bright-dark-boundary by means of light directed into the light entry surface.

The present disclosure relates to a technical field of optics, and discloses a glass product forming mold. The glass product forming mold comprising: a lower mold comprising a first surface and a upper mold comprising a second surface; the lower mold includes a first forming portion for forming the glass product, the upper mold includes a second forming portion corresponding to the first forming portion; the lower mold includes at least one first effluence portion, the first effluence portion is formed by bending from the first surface and is located on the same side of the first surface as the first forming portion, and/or, the upper mold includes at least one second effluence portion, the second effluence portion is formed by bending from the second surface and is located on the same side of the second surface as the second forming portion. The mold is easy to demould and the product consistency is good.

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 system for texturing a substrate includes a first roller and a second roller. The first roller has a first textured surface. The first 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.