摘要:
A rear exterior lamp for a vehicle including an optical fiber (61) for providing an optical fiber light output, an optical coupler (50) responsive to the optical fiber light output for providing an optical coupler light output, and a light panel (11, 13, 15, 100) responsive to the optical coupler light output for providing an exterior lamp output. The optical coupler more particularly includes a transparent substrate having an input side (53) for receiving the optical fiber light output, an output surface (51), and a plurality of internally reflecting surfaces (55a) opposite the output surface for internally reflecting light that enters the input surface toward the output surface.
摘要:
A front-lit display, having a ridged transparent film thereon. The ridges on the film bend glancing light rays down into the display. The light rays are reflected by a reflector below the display, pass back through the display, and exit the film in a direction substantially normal to the display. Thus, the ridged film enhances the brightness of the display for a given light source.
摘要:
A light pipe used for backlighting liquid crystal displays has a planar front surface and a stairstepped or faceted back surface. Light is injected from the ends of the light pipe from cold or hot cathode, apertured, fluorescent lamps. The cold cathode lamps are preferably insulated to raise their operating temperature. The back surface has a series of planar portions parallel to the front surface connected by facets, which are angled so that the injected light reflects off the facets and through the front surface. A reflector having a planar, highly reflective, highly scattering surface or a sawtoothed or grooved upper surface is located adjacent to and parallel with the light pipe back surface to reflect light escaping from the back surface back through the light pipe to exit the front surface. The axis of grooves is preferably slightly skewed from the facet axis to reduce moire pattern development. A low scattering or loss diffuser is located adjacent to and parallel with the light pipe front surface to reduce moire pattern development. The liquid crystal display is located over the low scattering diffuser. A separate injector may be located between the lamp and the light pipe to better couple the light into the light pipe.
摘要:
Compact devices for distributing light from a small area source to evenly light a larger area each comprise a member having a first plurality of surfaces which intercept respective slices of a light beam extending in a first direction and internally reflect the slices to a second substantially perpendicular second direction. A second plurality of surfaces intercept respective portions of the slices of light travelling in the second direction and internally reflect those portions generally perpendicularly toward an output surface to evenly light the output surface.
摘要:
In one embodiment, a film-based lightguide comprises a plurality interior light directing edges in a tapered light mixing region with curved sections which redirect light within the tapered light mixing region of the film. The interior light directing edges may be formed by cuts in the film that create an air gap between internal edges of the film. In one embodiment, the difference between radii of curvature of neighboring radii of arc sections of interior light directing edges is within 20% of an average distance between the arc sections. In one embodiment, the interior light directing edges totally internally reflect light propagating through the tapered light mixing region such that the light propagates at a smaller angle to a direction orthogonal to a width direction and orthogonal to the thickness direction of the film.
摘要:
An image encoder performs a first partitioning including using a first partition mode, without writing first splitting information indicative of the first partition mode into a bitstream, to split a first block into a plurality of second blocks in response to that the first block is located adjacent to an edge of a picture and that the dimensions of the first block satisfy a first condition; and performs a second partitioning on the second block by writing second splitting information indicative of a second partition mode into the bitstream, wherein the second partition mode allows at least one of a quad tree splitting and a binary splitting, and using the second partition mode to split the second block into a plurality of coding units (CUs), wherein the second partition mode prohibits the quad tree splitting of the second block in certain conditions.
摘要:
A HUD system and light source apparatus can be manufactured with miniaturization at low cost. A head-up display apparatus includes: an image display apparatus generating image light to be projected; an optical system performing predetermined correction to the image light emitted from the image display apparatus; and a concave mirror reflecting the image light corrected by the optical system to project it onto a windshield or combiner. The image display apparatus includes: a solid light source; a collimating optical system converting, into parallel light, the light from the solid light source; a lighting optical system configured by an optical member that polarizes a direction of a light beam generated by the collimating optical system and simultaneously expands a width of the light beam; and a display apparatus, the image display apparatus being configured to be arranged across and opposite the optical system on an optical axis of the concave mirror.
摘要:
The invention refers to a backlighting device for a (1) lighting assembly of a vehicle. The backlighting device comprises at least one printed circuit board and at least one light guide body. The light guide body receives the light, emitted by a light source. The printed circuit board blocks and deflects the light emitted by the light source to the light guide body. The printed circuit board has at least one opening to receive the light guide body.
摘要:
According to an aspect of the present disclosure, a waveguide comprises a waveguide body comprising an optically transmissive material and one or more extraction features disposed on a surface of the waveguide body such that the extraction features comprise a reflective material disposed on a portion of the surface of the waveguide body. Still further, in accordance with this aspect, the waveguide comprises a light source directing light into the waveguide body through a coupling cavity extending along the waveguide body wherein the light travels through the waveguide body and is redirected by the plurality of extraction features.