Abstract: A lighting device for a vehicle, comprising at least one light source, a flat light guide with an input surface and at least one output surface. The light generated by the at least one light source enters the light guide at least partially through the input surface and exits at least partially from the at least one output surface. An LC display which has two opposing, at least partially transparent plates and a liquid crystal layer is arranged between these plates. One of the at least partially transparent plates of the LC display is formed by the flat light guide. The lighting device is configured such that the light emerging from the at least one output surface of the light guide passes at least partially through the liquid crystal layer of the LC display and subsequently through the LC display plate not formed by the light guide.

Abstract: A lighting device for vehicles contains a flat optical waveguide, which has opposing flat sides and narrow sides connecting them, with numerous microstructure elements on a flat side of the optical waveguide. A number of light sources are positioned on one of the narrow sides of the optical waveguide, and a number of optical films are positioned on the light emission side of the optical waveguide. The optical films have an optical structure for deflecting light on the light emission side. At least one optical film on the side where the light enters has a structure for counteracting capillary effects.

Abstract: A lighting device for a vehicle, including a light source that is arranged on a circuit board, and a flat light guide, wherein a narrow side of the flat light guide is provided for coupling in light that is emitted by the light source. Oppositely arranged flat sides of the flat light guide are provided for relaying the coupled-in light via total reflection at the flat sides, and including a micro-optics structure that extends on a flat side of the flat light guide so that the flat side of the flat light guide, as a light outcoupling surface, is used to couple out the coupled-in light transversely with respect to a plane of extension of the flat light guide. The circuit board is arranged on a side opposite from the light outcoupling surface of the flat light guide, and the light source is arranged in an overhang portion of the circuit board that protrudes beyond a peripheral edge of the flat light guide.

Abstract: A flat wire or a narrow strip has a profiled cross-section and is composed of a high-strength steel having the following composition (in weight-%): C 0.2-0.9%, Mn 12-25%, Si up to 0.5%, Al 0.5-2.0%, Cr 1.8-3.5%, S max. 0.005%, P max. 0.06%, N max. 0.1%, Mo max. 1.5%, B max. 0.01%, Ni max. 2.0%, Cu max. 2.0%, Ca max. 0.015%, Nb 0.02-0.35% and/or V 0.02-0.35%, and, as the remainder, iron and unavoidable, production-related contaminants. The wire or strip is cold-rolled and/or cold-profiled from wire-form precursor material, and has improved Rp0.2, Rm, and A80 mechanical values.

Abstract: The invention relates to a flat wire or a narrow strip having a profiled cross-section, composed of a high-strength steel having the following composition (in weight-%): C 0.2-0.9%, Mn 12-25%, Si up to 0.5%, Al 0.5-2.0%, Cr 1.8-3.5%, S max. 0.005%, P max. 0.06%, N max. 0.1%, Mo max. 1.5%, B max. 0.01%, Ni max. 2.0%, Cu max. 2.0%, Ca max. 0.015%, Nb 0.02-0.35% and/or V 0.02-0.35%, as well as optionally Ti 0.01-0.35%, and, as the remainder, iron and unavoidable, production-related contaminants, cold-rolled and/or cold-profiled from wire-form precursor material, with optional intermediate annealing and/or an optional final annealing treatment, to achieve the following mechanical values: Rp0.2 500-1650 MPa, Rm 750-1800 MPa, A80 3-50%, for the production of armoring plies in flexible pipes for conveying petroleum and natural gas, as well as for transport of liquefied natural gas (FLNG) under acid gas conditions (acidic attack media).

Abstract: The invention relates to a cold-rolled carbon steel comprising (in % by weight) C 0.63-0.85%, max. 0.40% Si, 0.20-0.90% Mn, max. 0.035% P, max. 0.035% S, max. 0.060% Al, max. 0.40% Cr, 0.003-0.010% N, preferably 0.005-0.008%, and a maximum of 0.12% of at least one micro-alloying element, the remainder being iron and steel production-related pollutants. Possible micro-alloying elements are Ti, Nb, V and optionally Zr. A carbon steel of the type is cold-rolled into texture-rolled strip steel with a high cold reduction degree and can be used in particular as a material for coiling springs or other components having spring properties.

Abstract: The invention relates to a cold-rolled carbon steel comprising (in % by weight) C 0.63-0.85%, max. 0.40% Si, 0.20-0.90% Mn, max. 0.035% P, max. 0.035% S, max. 0.060% Al, max. 0.40% Cr, 0.003-0.010% N, preferably 0.005-0.008%, and a maximum of 0.12% of at least one micro-alloying element, the remainder being iron and steel production-related pollutants. Possible micro-alloying elements are Ti, Nb, V and optionally Zr. A carbon steel of the type is cold-rolled into texture-rolled strip steel with a high cold reduction degree and can be used in particular as a material for coiling springs or other components having spring properties.