摘要:
A lighting system include a point light source, a tubular color adjustment means, and a light-collecting and mixing element. The color adjustment means has a color-converting tubular structure and an adjusting rod. The tubular structure is made of a light-transmitting medium doped with a wavelength-converting material. The adjusting rod is operably connected to and for adjusting the tubular structure. In operation, the point light source emits light of a first wavelength or hue. The color adjustment means adjustably intersects, through the use of the adjusting rod, the light of the first hue and converts at least a portion of the light of a first hue into a light of another hue. The light-collecting and mixing element collects and mixes the light of a first hue and the light of another hue, and directs the mixed light out the open end.
摘要:
An illumination device has a light-transmitting member formed in the shape of a toroid having a light-receiving surface and a light-emitting surface, the light-transmitting member defining a central axis, a light source located along the light-transmitting member central axis, and a light-directing housing for guiding light from the light source into the light-receiving surface of the light-transmitting member. The light-transmitting member may have optical waveguide and light-scattering characteristics, whereby the light-transmitting member emits light having a substantially uniform intensity along the light-emitting surface. The light-directing housing has a top reflector member and a bottom reflector member positioned on opposing side of the light source and cooperating with the light-transmitting member such that light is emitted only through the light-transmitting member.
摘要:
An illumination device for simulating neon or similar lighting uses fluorescent dyes, thus allowing for emission of light in colors that cannot ordinarily be achieved by use of LEDs alone. Such an illumination device is generally comprised of an elongated diffusing member enclosing a string of continuously mounted LEDs. An intermediate light-transmitting medium including a predetermined combination of one or more fluorescent dyes is interposed between the light source and the diffusing member, such that light from the LEDs is partially absorbed by each of the fluorescent dyes, and a lower-energy light is then emitted from each of the fluorescent dyes and into the light-receiving surface of the diffusing member, producing a substantially uniform light along the light-emitting surface of the diffusing member with perceived a color different than that of the LEDs.
摘要:
An illumination device simulates neon lighting and allows for emission of light in colors that cannot ordinarily be achieved by use of LEDs alone through the incorporation of a light color conversion system into the illumination device. This light color conversion system comprises an intermediate light-transmitting medium tinted with a predetermined combination of one or more fluorescent dyes. Light emitted from the light source of the illumination device is directed into the intermediate light-transmitting medium and interacts with the fluorescent dyes contained therein. This light is partially absorbed by each of the fluorescent dyes of the intermediate light-transmitting medium, and a lower-energy light is then emitted from each of the fluorescent dyes and into the light-receiving surface of the waveguide. Thus, selection of appropriate combinations of dyes results in various colors being emitted from the illumination device.
摘要:
An optical waveguide structure for distributing light from a light source includes a cylindrical sleeve configured to accommodate and receive light from the light source. The sleeve includes a central axis. A waveguide collar is formed from a solid, planar block of material. The block of material has a central portion configured to accommodate and surround the sleeve. The first and second output arms extend in a plane away from the central portion. The plane is substantially perpendicular to the central axis.
摘要:
A vehicle headlamp includes a beamforming waveguide having an input face, an output face, and a guide portion extending between the input face and the output face. A light source is positioned at the input face of the beamforming waveguide. A lens is positioned at the output face so that light output by the beamforming waveguide passes through the lens to provide vehicle forward illumination. The beamforming waveguide is shaped to generate a desired headlamp beam pattern and can be formed as a block of solid material, a bundle of plastic or glass fibers, or a solid molded wedge that can be moved between two positions to provide both high and low beam forward illumination.
摘要:
A lighting system includes a housing, a light-transmitting top member positioned across an open top of the housing, a light source positioned in the housing, a helical fiber biased between the light source and the top member, and an adjustment means for adjusting the compression of the helical fiber. The helical fiber is light-transmitting and is doped with a first wavelength-converting material. A portion of the light emitted by the light source passes through open space between turns of the helical fiber, and a portion of the light emitted by the light source is received by the helical fiber and converted into a light of a predetermined color. Adjusting the compression of the helical fiber changes the relative portions of the light that passes through the open space between the turns of the helical fiber and the light received by the helical fiber.
摘要:
An illumination device for simulating neon or similar lighting incorporates removable and interchangeable color conversion modules, thus allowing for emission of light in colors that cannot ordinarily be achieved by use of light-emitting diodes alone without significant increase in cost or complexity of the illumination device.
摘要:
An illumination device for simulating neon lighting comprising a plurality of spaced point light sources positioned adjacent a lateral light receiving surface of a substantially rod-like waveguide made of a material that preferentially scatters light entering the light receiving surface such that the light intensity pattern exiting a lateral light emitting surface of the waveguide has a substantially uniform light intensity pattern.
摘要:
An illumination device for the simulation of neon lighting comprises a leaky waveguide rod having a light-emitting lateral surface and a first set of one or more point light sources positioned adjacent one or both ends of the waveguide rod, the attenuation of light along the length of the waveguide rod being controlled such that light emitted from the lateral surface of the waveguide rod has essentially the same intensity over the length of the waveguide rod.