摘要:
Various embodiments are described that provide a techniques to produce sharp, high contrast, edge enhanced images using edge-lit displays. The edge-lit displays may comprise extractor pattern painted, etched or molded on a light guide. The extractor pattern may be determined from an edge-enhanced input pattern and modified iteratively to produce an edge-enhanced output pattern.
摘要:
Lighted refrigerated display case with remote light source comprises a closed container with an interior of the container refrigerated to a temperature below 7 C. The container is thermally insulated from ambient, having internal and external walls. A solid fiber optic luminaire is at least partially mounted within the container, having an elongated side-light emitting portion for emitting light from the side of the luminaire onto contents in an interior of the display case. The side-light emitting portion comprises an extractor of light arranged to preferentially extract light from the luminaire and direct the light in at least one radial direction along the length of the side-light emitting portion to at least one target area of said contents along a longitudinal axis of the side-light emitting portion. A light-delivery system provides light to the fiber optic luminaire, having a light source mounted remotely from the interior of the container.
摘要:
Luminaire with directional side-light extraction comprises a light pipe with a light-carrying core, and with a light-extraction structure along a first longitudinal side of the luminaire, confined to a radial swath of the luminaire, along the longitudinal axis of the luminaire, of substantially less than 180°. The second end has light-saving structure for directing saved light from the second end towards the first end, at redirection angles other than an excluded range of redirection angles, so long as the photon content of light at so-called alpha redirection angles is at least 10 percent of the photon content of light at so-called beta redirection angles, where the excluded range of redirection angles is defined by a mathematical formula. The light-extraction means is adjustable to accommodate angular distributions of light from various light sources.
摘要:
Lighted refrigerated display case with remote light source comprises a closed container with an interior of the container refrigerated to a temperature below 7 C. The container is thermally insulated from ambient, having internal and external walls. A solid fiber optic luminaire is at least partially mounted within the container, having an elongated side-light emitting portion for emitting light from the side of the luminaire onto contents in an interior of the display case. The side-light emitting portion comprises an extractor of light arranged to preferentially extract light from the luminaire and direct the light in at least one radial direction along the length of the side-light emitting portion to at least one target area of said contents along a longitudinal axis of the side-light emitting portion. A light-delivery system provides light to the fiber optic luminaire, having a light source mounted remotely from the interior of the container.
摘要:
A luminaire with directional side-light extraction comprises a light pipe with a light-carrying core. The light pipe has light-extraction structure along a first longitudinal side of the luminaire, which is confined to a radial swath of the luminaire, along the longitudinal axis of the luminaire, of substantially less than 180°. For efficiency, the second end has light-saving structure for directing saved light from the second end towards the first end, at redirection angles other than an excluded range of redirection angles, so long as the photon content of light at so-called alpha redirection angles is at least 10 percent of the photon content of light at so-called beta redirection angles, where the excluded range of redirection angles is defined by: |βr↑
摘要翻译:具有定向侧光提取的灯具包括具有轻载芯的光管。 光管具有沿着照明器的第一纵向侧的光提取结构,其沿着照明器的纵向轴线限制在照明器的径向条纹上,基本上小于180°。 为了效率,第二端具有节省光的结构,用于将保存的光从第二端朝向第一端,除了排除的重定向角度之外的重定向角度,只要所谓的α重定向的光的光子含量 角度是所谓的β重定向角度的光的光子含量的至少10%,其中重定向角度的排除范围由下式定义:|β↑<= 20°和|α< 其中ββ是β重定向角,并且α SUB> R SUB> alpha重定向角度
摘要:
Lighted display case with remote light source comprises a container having contents for display. A solid fiber optic luminaire is at least partially mounted within the container, having an elongated side-light emitting portion for emitting light from the side of the luminaire onto contents in an interior of the display case. The side-light emitting portion comprises an extractor of light arranged to preferentially extract light from the luminaire and direct the light to at least one target area of said contents. The portion may be rotatable about its own longitudinal axis. A single side-light emitting portion may be arranged to illuminate a target area on one of its lateral sides, and another target area on another lateral side. A single lamp may provide light to first and second luminaires arranged to illuminate a target area on one of its lateral sides, and another target area on another lateral side.
摘要:
A luminaire with improved lateral illuminance control comprising a light pipe with a longitudinal center is disclosed. A light-extraction means applied to a radial swath of the light pipe has a longitudinal portion having dimension along its length, centered about a slice on the light pipe longitudinally; said slice being orthogonal to the longitudinal center and located in a propagation plane through which light propagates to a virtual target area intersecting the propagation plane. The light pipe intervenes between the radial swath and the target area. A first average efficiency point of the light-extraction means corresponds to the minimum distance to the target area being at least approximately 20% less than a respective, second average efficiency point corresponding to a respective maximum distance to such area. The light-extraction means efficiency varies from the first average efficiency point to the second average efficiency point though more than one non-zero value.
摘要:
Various embodiments described herein comprise mixers comprising a light pipe having input and output ends and a central region therebetween. An optical path extends in a longitudinal direction from the input end through the central region to the output end. The central region of the light pipe comprises one or more rippled reflective sidewalls having a plurality of elongate ridges and valleys and sloping surfaces therebetween. Light from the input end propagating along the optical path reflects from the sloping surfaces and is redirected at a different azimuthal direction toward the output end thereby mixing the light at the output end. Illuminance and/or color mixing can therefore be provided.
摘要:
An apparatus and method for preventing decubitus ulcerations including a frame having a pair of frame supports spaced from each other. A mattress is supported on the frame between the frame supports. A pliable support material extends between the supports. The material is adapted to support an individual thereon in a generally recumbent position. A lift mechanism is disposed on the frame and operably connected to the support material. The lift mechanism adjusts the tension of the material so that the support has a first position resting on the mattress and a second position wherein the support is raised above the mattress.
摘要:
A bottom electrode structure and manufacturing method is described for producing crystallographically textured iridium electrodes for making textured PZT capacitors that enables enhanced ferroelectric memory performance. The use of seed layers originating from hexagonal crystal structures with {0001} texture provides a smooth surface for growth of {111} textured iridium, which exhibits the face-centered cubic (“FCC”) structure. This seeding technique results in {111} textured iridium with a small surface roughness relative to the film thickness. The highly textured iridium supports {111} textured PZT dielectric layer growth. Textured PZT exhibits enhanced switched polarization, reduced operating voltage and also improves the reliability of PZT capacitors used in FRAM® memory and other microelectronic devices.