摘要:
A lens is disclosed for lighting purposes suited in particular as a lens for a poly-ellipsoid reflector headlamp for imaging the light emitted by a light source and reflected by a poly-ellipsoid reflector for the purpose of producing a predetermined lighting pattern. At least one of the two lens surfaces comprises areas having different optical scattering effects which areas are configured as zones that are transferred from a mold to the surface by a hot-pressing process.
摘要:
The method for making a lens with a first convex lens surface (32) and a second lens surface (33) includes feeding a glass melt drop into a concave mold (2, 10), precise pressing both sides of the glass melt drop in the concave mold (2, 10) together with a press die (20) and immersing the press die (20) in the glass melt drop so that a supporting rim (34) with predetermined dimensions, which protrudes beyond a highest point of the second lens surface (33), is formed on the lens by glass material displaced by the precise pressing. The apparatus for precise pressing includes an upper mold part (10) a lower mold part (2) and the press die (20).
摘要:
A lens is disclosed for lighting purposes suited in particular as a lens for a poly-ellipsoid reflector headlamp for imaging the light emitted by a light source and reflected by a poly-ellipsoid reflector for the purpose of producing a predetermined lighting pattern. At least one of the two lens surfaces comprises areas having different optical scattering effects which areas are configured as zones that are transferred from a mold to the surface by a hot-pressing process.
摘要:
The plano-convex lens of a projection headlight has a holding edge (4) integrally formed on an outer lens edge and a supporting edge (5) projecting from its plane surface (3) and formed integrally with the holding edge (4). The supporting edge (5) and the holding edge (4) form a continuous cylindrical outer circumferential surface (45) extending over their outer sides. The convex surface (2) and the plane surface (3) of the lens are bright pressed surfaces so that the grinding and polishing steps usually used in making the lens can be eliminated. The method of manufacturing the lens including bright pressing the convex and plane surfaces is also part of the invention.
摘要:
The optical lens, especially for a motor vehicle, is provided with a soft-focus effect, e.g. to soften a light-dark boundary on an illuminated surface. For this purpose the optical lens has an optically active surface (5′) provided with an embossed fine structure (2) extending radially outward in a direction from an optical axis (O) toward an outer periphery (P) in an undulating form and an embossed microstructure (3) is provided on the embossed fine structure (2). The fine structure (2) preferably has a roughness of from 1 μm to 10 μm and the microstructure (3) has a roughness (h) in a range of from 0.1 μm to 2.5 μm.
摘要:
The optical lens, especially for a motor vehicle, is provided with a soft-focus effect, e.g. to soften a light-dark boundary on an illuminated surface. For this purpose the optical lens has an optically active surface (5′) provided with an embossed fine structure (2) extending radially outward in a direction from an optical axis (O) toward an outer periphery (P) in an undulating form and an embossed microstructure (3) superimposed on the embossed fine structure (2). The fine structure (2) has a roughness that is greater than that of the microstructure (3). The fine structure (2) preferably has a roughness of from 1 μm to 10 μm and the microstructure (3) has a roughness (h) in a range of from 0.1 μm to 2.5 μm.
摘要:
A lens (1) is described, which has a curved surface, a plane surface (3) and a holding edge (4) molded onto the lens edge. The curved surface and plane surface on both sides of the lens are pressed bright. A supporting edge (5) which projects from the plane surface (3) is molded onto the holding edge. Such lenses are preferably used for projection headlights for motor vehicles. A method of manufacture for such lenses is also specified.
摘要:
A method for making glass ceramic composite structures, wherein a first and at least a second glass component, with an intermediate layer of a joining solder consisting of glass placed between them, are assembled to form a raw composite structure, wherein the joining solder has a radiation absorption capacity higher than the components to be joined, and wherein the raw composite structure is irradiated with energy, for example IR energy, at least in the area of the joining solder until the joining solder has softened sufficiently to bond together the components and the joining solder to produce a composite glassy structure. Thereafter a ceramization treatment is performed.
摘要:
The invention relates to a method and an apparatus for positioning a feeder needle, and to a production line for optical components, in which a feeder needle of an apparatus for portioning fluid material, preferably softened glass, in particular of a needle feeder, has its position relative to a seat for the feeder needle recorded by means of a force-measuring device, and to further apparatuses which realize this method and to objects produced by the process.
摘要:
In order to provide glass ceramic articles with an improved surface with regard to roughness, the invention relates to a method for producing glass ceramic panels (40) in which a green glass panel (10) is produced by hot forming and the green glass panel (10) is subsequently ceramized to form a glass ceramic, wherein the green glass panel (10) is fire-polished on at least one surface (11, 12) before or during the ceramizing.