-
公开(公告)号：US06682207B2
公开(公告)日：2004-01-27
申请号：US09887954
申请日：2001-06-22
申请人： Andreas G. Weber , Gregory M. Cutler , William R. Trutna, Jr. , Gerd O. Muller , Regina B. Muller-Mach
发明人： Andreas G. Weber , Gregory M. Cutler , William R. Trutna, Jr. , Gerd O. Muller , Regina B. Muller-Mach
IPC分类号： F21V900
CPC分类号： H01S5/423 , H01L25/0753 , H01L33/50 , H01L2924/0002 , H01S5/4025 , H01S5/4087 , H01L2924/00
摘要： A light emitting device comprises a light emitting diode that emits primary light and a SrGa2S4:Eu2+ phosphor material capable of absorbing at least a portion of the primary light and emitting secondary light. The secondary light includes a wavelength longer than a wavelength of the primary light.
摘要翻译： 发光器件包括发射一次光的发光二极管和能够吸收至少一部分初级光并发射次级光的SrGa2S4：Eu 2+荧光体材料。 次级光包括比初级光的波长长的波长。
-
公开(公告)号：US06325524B1
公开(公告)日：2001-12-04
申请号：US09239571
申请日：1999-01-29
IPC分类号： F21V1304
CPC分类号： G03B21/2033 , F21K9/68 , G03B21/2066 , G03B27/545 , H01L25/0753 , H01L33/60 , H01L2924/0002 , H01L2933/0091 , Y10S362/80 , H01L2924/00
摘要： A light source for generating light that is collected by an optical system that collects light leaving the light source within a predetermined acceptance angle relative to an axis defined in relation to the optical system. The light source includes a plurality of LEDs mounted on a reflecting base. Each of the LEDs generates light that leaves that LED via a top surface, a bottom surface, and one or more side surfaces of the LED. The reflecting base has a reflective surface in contact with the bottom surface of each of the LEDs. Light leaving the side surfaces of the LEDs is reflected into the acceptance angle of the optical system by a plurality of reflectors. In one embodiment of the invention, the reflectors include a plurality of reflecting facets for reflecting light leaving the side surfaces of the LEDs. The facets may be part of the reflective base or separate objects located between the LEDs. In another embodiment of the invention, the reflectors include scattering centers located between the LEDs.
摘要翻译： 一种用于产生由光学系统收集的光的光源，所述光学系统将离开所述光源的光相对于关于所述光学系统限定的轴收集在预定的接收角内。 光源包括安装在反射底座上的多个LED。 每个LED产生通过LED的顶表面，底表面和一个或多个侧表面离开该LED的光。 反射底座具有与每个LED的底表面接触的反射表面。 离开LED的侧表面的光被多个反射器反射到光学系统的接受角度。 在本发明的一个实施例中，反射器包括用于反射离开LED的侧表面的光的多个反射面。 小面可以是位于LED之间的反射基底或分开的物体的一部分。 在本发明的另一个实施例中，反射器包括位于LED之间的散射中心。
-
公开(公告)号：US06273589B1
公开(公告)日：2001-08-14
申请号：US09239572
申请日：1999-01-29
IPC分类号： F21V900
CPC分类号： H01S5/423 , H01L25/0753 , H01L33/50 , H01L2924/0002 , H01S5/4025 , H01S5/4087 , H01L2924/00
摘要： A light source having emissions in a plurality of spectral bands. The simplest light source according to the present invention is constructed from first and second light sources and a dichroic beam splitter. The first and second solid state light sources emit light in first and second bands of non or only partially-overlapping wavelengths. The dichroic beam splitter combines light from the first and second solid state light sources by passing light in the first band while reflecting light in the second band to generate light having a spectral content in the first and second bands. The solid state light sources are preferably arrays of LEDs, VCSELs, or edge emitting semiconductor lasers. A light source having improved radiance in the green region of the spectrum can be constructed by utilizing first and second solid state light sources that emit in different bands in the green portion of the spectrum. A white light source can be constructed by utilizing a third solid state light source and a second dichroic beam splitter and by choosing the emission bands of the light sources such that light leaving the second dichroic beam splitter is perceived as white by an observer when all three solid state light sources are emitting light. This light source has a radiance that is higher than the radiance of each individual solid state light source.
摘要翻译： 具有多个光谱带中的发射的光源。 根据本发明的最简单的光源由第一和第二光源和二向色分束器构成。 第一和第二固态光源在非或仅部分重叠的波长的第一和第二波段中发光。 二向色分束器通过使第一频带中的光通过，同时反射第二频带中的光而组合来自第一和第二固态光源的光，以产生具有第一和第二频带中的频谱含量的光。 固态光源优选地是LED，VCSEL或边缘发射半导体激光器的阵列。 可以通过利用在光谱的绿色部分中以不同频带发射的第一和第二固态光源来构造具有在光谱的绿色区域中具有改善的辐射度的光源。 可以通过利用第三固态光源和第二二向色分束器来构造白光源，并且通过选择光源的发射带使得离开第二二向色分束器的光被观察者视为白色，当三个 固态光源正在发光。 该光源的辐射度高于每个固体光源的辐射度。
-
公开(公告)号：US06212213B1
公开(公告)日：2001-04-03
申请号：US09240284
申请日：1999-01-29
IPC分类号： H01S319
CPC分类号： G03B21/2033 , G03B21/204 , G03B27/545 , H04N9/3108 , H04N9/315
摘要： A light source constructed from a two dimensional array of light emitting devices. The light emitting devices include first, second and third types of light emitter. The first type of light emitting device covers a first area in the two dimensional array and emits light in a first region of the optical spectrum. The second type of light emitting device covers a second area in the two dimensional array and emits light in a second region of the optical spectrum, and the third type of light emitting device covers a third area in the two dimensional array and emits light in a third region of the optical spectrum. The first, second, and third areas are chosen such that the simultaneous output from all emitters generates white light. At least one of the emitter types covers an area larger than that covered by the others. In the preferred embodiment of the present invention, the first type of light emitting device includes a light emitting device that emits light at a wavelength less than the wavelength of a green region of the optical spectrum; a color conversion compound absorbs this light and re-emits it in the green region of the optical spectrum.
摘要翻译： 由二维发光器件阵列构成的光源。 发光器件包括第一，第二和第三类型的发光器。 第一类型的发光器件覆盖二维阵列中的第一区域并且在光谱的第一区域中发光。 第二类型的发光器件覆盖二维阵列中的第二区域并且在光谱的第二区域中发光，并且第三类型的发光器件覆盖二维阵列中的第三区域并发射光 光谱的第三区域。 选择第一，第二和第三区域使得来自所有发射器的同时输出产生白光。 发射器类型中的至少一种覆盖的面积大于其他发射器类型的面积。 在本发明的优选实施例中，第一类型的发光器件包括发射波长小于光谱的绿色区域的波长的光的发光器件; 颜色转换化合物吸收该光并将其再次发射在光谱的绿色区域中。
-
公开(公告)号：US07777781B2
公开(公告)日：2010-08-17
申请号：US11212460
申请日：2005-08-26
IPC分类号： H04N5/228
CPC分类号： H04N5/23248 , G02B27/646 , H04N5/23254
摘要： Multiple motion sensor devices are included in an imaging apparatus. One or more of the motion sensor devices captures images and at least a portion of the sensor images are then processed to determine one or more motion vectors for the processed sensor images. At least one motion vector representing an amount of motion of the imager during image capture is generated when a predetermined portion of the motion vectors match.
摘要翻译： 多个运动传感器装置包括在成像装置中。 一个或多个运动传感器装置捕获图像，然后处理至少一部分传感器图像以确定用于经处理的传感器图像的一个或多个运动矢量。 当运动矢量的预定部分匹配时，产生表示图像拍摄期间成像器运动量的至少一个运动矢量。
-
公开(公告)号：US07215837B2
公开(公告)日：2007-05-08
申请号：US11126805
申请日：2005-05-10
IPC分类号： G02F1/335
CPC分类号： G02F1/125 , Y10S385/901
摘要： Optical waveguide systems and methods are described. In one aspect, a display system includes a planar acoustic cavity having a fundamental resonant acoustic mode. The acoustic cavity includes an array of optical waveguides and an array of acoustic transducers. Each of the optical waveguides includes a respective cladding surrounding a liquid-filled core. The array of acoustic transducers is operable to generate acoustic waves that propagate in the acoustic cavity across the cores of the optical waveguides.
摘要翻译： 描述了光波导系统和方法。 一方面，显示系统包括具有基本共振声学模式的平面声腔。 声腔包括光波导阵列和声换能器阵列。 每个光波导包括围绕液体填充芯的相应包层。 声换能器的阵列可操作以产生在声腔中在光波导的芯上传播的声波。
-
公开(公告)号：US5140599A
公开(公告)日：1992-08-18
申请号：US561024
申请日：1990-08-01
CPC分类号： H01S3/1068 , G02B6/4203 , H01S3/137 , H01S5/065 , H01S5/141
摘要： An external cavity laser is formed by feeding back light from a laser through two or more acoustooptic tuneable filters back to the laser. The Doppler shifts introduced by the filters do not entirely cancel. The net Doppler shift caused by the filters is continuously tuned to cause the bandpass of the filter to follow the shifting resonating frequency of the laser to prevent mode hopping.
-
公开(公告)号：US4362809A
公开(公告)日：1982-12-07
申请号：US248761
申请日：1981-03-30
摘要： An improved photoetch technique is presented of the portable-conformable-mask type wherein a thin top layer of resist and a thick planarizing layer are deposited on a substrate and the thin layer is exposed and developed to produce a portable-conformable-mask. The improvement involves dissolving a suitable dye in a layer between the thin top layer and the substrate. The dye is preferably selected to absorb light of the wavelengths used to expose the top layer but does not interfere with processing of the other layers.
摘要翻译： 提出了一种改进的光刻技术，其中抗蚀剂的薄顶层和厚的平坦化层沉积在衬底上，并且薄层被曝光和显影以产生便携式一致掩模。 该改进涉及将合适的染料溶解在薄顶层和基底之间的层中。 优选选择染料以吸收用于暴露顶层的波长的光，但不影响其它层的处理。
-
公开(公告)号：US5534702A
公开(公告)日：1996-07-09
申请号：US287433
申请日：1994-08-08
CPC分类号： G21K4/00 , G01T1/2012 , G21K2004/12
摘要： A simplified, cost effective optical apparatus for solid state photorecording of optical images with enhanced resolution. The optical apparatus of the invention includes an array of optical apertures and a plurality of portions of a phosphorescent material. Each portion is optically coupled to a respective one of the apertures. The apertures are exposed to an optical image so as to record the image in the plurality of portions of the phosphorescent material. A number of the apertures of the invention is large, preferably within a range of approximately one million to seven million apertures. For example in a preferred embodiment the number of the apertures is approximately six million apertures. Preferably, the optical apertures are microscopic optical apertures. For example, each aperture has a respective width dimension within a range of approximately ten to fifty microns. Preferably, the respective width dimension of each aperture is approximately twelve microns.
摘要翻译： 一种用于具有增强分辨率的光学图像的固态光记录的简化的，成本有效的光学装置。 本发明的光学装置包括光学孔的阵列和磷光材料的多个部分。 每个部分光学耦合到相应的一个孔。 孔径暴露于光学图像，以便将图像记录在磷光材料的多个部分中。 本发明的许多孔是大的，优选在大约一百万到七百万个孔的范围内。 例如，在优选实施例中，孔的数量为大约六百万个孔。 优选地，光学孔是微观光学孔。 例如，每个孔具有在大约十到五十微米的范围内的相应的宽度尺寸。 优选地，每个孔的相应宽度尺寸大约为十二微米。
-
公开(公告)号：US5000568A
公开(公告)日：1991-03-19
申请号：US415438
申请日：1989-09-28
IPC分类号： G01M11/00
CPC分类号： G01M11/3118
摘要： An optical time domain reflectometer that injects at least two complementary code sequences into an optical fiber and detects the return signal produced by each of these code sequences. These return signals are processed to extract the function h.sub.k that is equal to the response function for the fiber when a single pulse is injected into the fiber. This processing utilizes a correlation scheme that has no sidelobe distortion. Various combinations of Golay codes are suitable for use as the complementary codes.
摘要翻译： 光时域反射计，其将至少两个互补码序列注入到光纤中，并检测由这些码序列中的每一个产生的返回信号。 处理这些返回信号以提取当将单个脉冲注入光纤时等于光纤的响应函数的函数hk。 该处理利用没有旁瓣失真的相关方案。 Golay码的各种组合适合用作互补码。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.03 秒)
