摘要:
The present invention relates to an electric lamp (1) for vehicle headlights with low-beam function comprising a light source (2) emitting visible light (4), a transparent envelope (3) having an exterior surface (3′) and an interior surface (3″) enclosing said light source (2), at least one multilayer structure (7) provided on the exterior surface (3′) of the envelope (3), wherein (a first light (5) substantially with a bluish-white color transmits the multilayer structure (7) directly and a second light (6) substantially with a yellowish color transmits the multilayer structure (7) after being reflected at the multilayer structure (7), wherein the multilayer structure (7) being of none light absorbing materials is provided in such a way, that the color of light of a standard light source A being reflected at the multilayer structure (7) lies within a triangle in the CIE 1931 Yxy color space defined by the x, y coordinates (0.58; 0.42), (0.58; 0.30) and (0.70; 0.30) wherein the lightness Y is in the range of 2.5≦Y≦17.5, wherein none of the emitted visible light (4) is absorbed by the multilayer structure (7).
摘要:
The invention relates to a lamp for motor vehicles that at least comprises a first incandescent filament that is intended to produce a light beam having a light/dark cutoff line, the incandescent filament having associated with it for this purpose a shielding cap to restrict the light emitted to a given angular range. The shielding cap (4) has at least one opening that is intended to produce a light beam above the light/dark cutoff line, with at least part of this light beam, which light beam passes through the said opening, not passing through and/or passing through a color filter.
摘要:
It is provided a lamp (12) for an automotive headlamp (10), comprising a filament coil (14) for emitting light (22) and a nominal alignment axis (32) for aligning the filament coil (14) such, that the filament coil (14) is positioned in the middle of an allowable tolerance box wherein the filament coil (14) is arranged shifted to the nominal alignment axis (32). Due to the shifted arrangement of the filament coil (14) the flexibility given by the allowable tolerance may be used for positioning the filament coil such, that the projected image (18) of the filament coil (14) is projected nearer to the bright/dark-cutoff (40) without blinding oncoming traffic.
摘要:
The invention relates to a lamp for motor vehicles that at least comprises a first incandescent filament that is intended to produce a light beam having a light/dark cutoff line, the incandescent filament having associated with it for this purpose a shielding cap to restrict the light emitted to a given angular range. The shielding cap (4) has at least one opening that is intended to produce a light beam above the light/dark cutoff line, with at least part of this light beam, which light beam passes through the said opening, not passing through and/or passing through a color filter.
摘要:
The invention relates to an LED light system (1) for generating directed illumination radiation. The system comprises a plurality of LED lamp elements (2), each comprising a collimator (10) with an LED element (9). The LED lamp elements (2) are arranged in a defined array for generating a specified luminance pattern. A secondary optics device (11) images the luminance pattern in the space to be illuminated.