Phosphor coating with self-adjusting distance from LED chip
    1.
    发明授权
    Phosphor coating with self-adjusting distance from LED chip 有权
    荧光粉涂层与LED芯片具有自调节距离

    公开(公告)号:US06635363B1

    公开(公告)日:2003-10-21

    申请号:US09642901

    申请日:2000-08-21

    IPC分类号: H01L3300

    摘要: A light source (10) includes a light emitting component (32), such as a UV/blue light emitting diode or laser diode. A layer (62, 162, 262, 362) of a phosphor material is spaced from the light emitting component by a layer (60, 160, 260, 360) of a material which is transmissive to the light emitted by the light emitting component. The phosphor material converts a portion of the light emitted by the light emitting component to light of a longer wavelength such as yellow light. In a preferred embodiment, the light transmissive layer valise in thickness over the light emitting component so that the phosphor is spaced further from the diode in regions where the emission is higher. This increases the Surface area of the phosphor in these regions and minimizes the effects of overheating and saturation on the phosphor emission.

    摘要翻译: 光源(10)包括诸如UV /蓝色发光二极管或激光二极管的发光部件(32)。 荧光体材料的层(62,162,262,362)与发光部件间隔开由对发光部件发出的光透射的材料层(60,160,260,360)。 荧光体材料将由发光部件发射的光的一部分转换成较长波长的光,例如黄色光。 在优选实施例中,透光层的厚度在发光部件上方的厚度使得荧光体在发射较高的区域中与二极管进一步隔开。 这增加了这些区域中的荧光体的表面积,并使过热和饱和对磷光体发射的影响最小化。

    Phosphor screen and imaging assembly
    4.
    发明授权
    Phosphor screen and imaging assembly 失效
    荧光屏和成像组件

    公开(公告)号:US07586252B2

    公开(公告)日:2009-09-08

    申请号:US11135012

    申请日:2005-05-23

    IPC分类号: H01J29/06

    摘要: A phosphor admixture includes a phosphor powder and a number of radiation capture electron emitters. The emitters are dispersed within the phosphor powder. A phosphor screen includes phosphor particles, radiation capture electron emitters and a binder. The emitters and phosphor particles are dispersed within the binder. An imaging assembly includes a phosphor screen configured to receive incident radiation and to emit corresponding optical signals. An electronic device is coupled to the phosphor screen. The electronic device is configured to receive the optical signals from the phosphor screen and to generate an imaging signal.

    摘要翻译: 荧光粉混合物包括荧光体粉末和许多辐射捕获电子发射体。 发射体分散在荧光粉中。 荧光屏包括磷光体颗粒,辐射捕获电子发射体和粘合剂。 发射体和荧光体颗粒分散在粘合剂中。 成像组件包括配置成接收入射辐射并发射相应光信号的荧光屏。 电子设备耦合到荧光屏。 电子设备被配置为从荧光屏接收光信号并产生成像信号。

    Polymeric composite scintillators and method for making same
    5.
    发明申请
    Polymeric composite scintillators and method for making same 失效
    聚合复合闪烁体及其制造方法

    公开(公告)号:US20080237470A1

    公开(公告)日:2008-10-02

    申请号:US11728400

    申请日:2007-03-26

    IPC分类号: G01T1/20

    CPC分类号: G01T1/20 A61B6/037 G01T1/16

    摘要: A scintillation detector comprising nano-scale particles of a scintillation compound embedded in a plastic matrix is provided. The nano-scale particles may be made from metal oxides, metal oxyhalides, metal oxysulfides, or metal halides. Methods are provided for preparing the nano-scale particles. The particles may be coated with organic compounds or polymers prior to incorporation in the plastic matrix. A technique for matching the refractive index of the plastic matrix with the nano-scale particles by incorporating nano-scale particles of titanium dioxide is also provided. The scintillator may be coupled with one or more photodetectors to form a scintillation detection system. The scintillation detection system may be adapted for use in X-ray and radiation imaging devices, such as digital X-ray imaging, mammography, CT, PET, or SPECT, or may be used in radiation security detectors or subterranean radiation detectors.

    摘要翻译: 提供一种闪烁检测器,其包括嵌入塑料基质中的闪烁化合物的纳米级粒子。 纳米级颗粒可以由金属氧化物,金属卤氧化物,金属氧硫化物或金属卤化物制成。 提供了制备纳米级颗粒的方法。 在掺入塑料基质之前,颗粒可以涂覆有机化合物或聚合物。 还提供了一种通过纳入二氧化钛纳米尺度颗粒来匹配塑料基质与纳米级颗粒的折射率的技术。 闪烁体可以与一个或多个光电检测器耦合以形成闪烁检测系统。 闪烁检测系统可以适用于X射线和放射线成像装置,例如数字X射线成像,乳房X线照相术,CT,PET或SPECT,或可用于辐射安全检测器或地下辐射检测器。

    PHOTODETECTOR HAVING IMPROVED QUANTUM EFFICIENCY
    7.
    发明申请
    PHOTODETECTOR HAVING IMPROVED QUANTUM EFFICIENCY 有权
    具有改进的量子效率的光电转换器

    公开(公告)号:US20130082264A1

    公开(公告)日:2013-04-04

    申请号:US13250568

    申请日:2011-09-30

    IPC分类号: H01L29/786 H01L21/02

    CPC分类号: G01T1/2018

    摘要: The present approach involves a radiation detector module with increased quantum efficiency and methods of fabricating the radiation detector module. The module includes a scintillator substrate and a photodetector fabricated on the scintillator substrate. The photodetector includes an anode, active organic elements, and a cathode. The module also includes a pixel element array disposed over the photodetector. During imaging, radiation attenuated by an object to be imaged may propagate through the pixel element array and through the layers of the photodetector to be absorbed by the scintillator which in response emits optical photons. The photodetector may absorb the photons and generate charge with improved quantum efficiency, as the photons may not be obscured by the cathode or other layers of the module. Further, the module may include reflective materials in the cathode and at the pixel element array to direct optical photons towards the active organic elements.

    摘要翻译: 本方法涉及具有增加的量子效率的辐射检测器模块和制造辐射探测器模块的方法。 该模块包括闪烁体基板和在闪烁体基板上制造的光电检测器。 光检测器包括阳极,有源有机元件和阴极。 模块还包括设置在光电检测器上方的像素元件阵列。 在成像期间,由待成像的物体衰减的辐射可以通过像素元件阵列传播并且通过光电检测器的层传播,以被闪烁体吸收,闪烁体响应于发射光子。 光电检测器可以吸收光子并产生具有改善的量子效率的电荷,因为光子可能不被模块的阴极或其它层遮蔽。 此外,模块可以包括在阴极和像素元件阵列处的反射材料,以将光学光子引向有源有机元件。

    HIGH ENERGY RESOLUTION SCINTILLATORS HAVING HIGH LIGHT OUTPUT
    10.
    发明申请
    HIGH ENERGY RESOLUTION SCINTILLATORS HAVING HIGH LIGHT OUTPUT 审中-公开
    具有高亮度输出功能的高能分辨率扫描仪

    公开(公告)号:US20080296503A1

    公开(公告)日:2008-12-04

    申请号:US12176209

    申请日:2008-07-18

    IPC分类号: G01T1/20

    摘要: A scintillator composition includes a matrix material, where the matrix material includes an alkaline earth metal and a lanthanide halide. The scintillator composition further includes an activator ion, where the activator ion is a trivalent ion. In one embodiment, the scintillator composition includes a matrix material represented by A2LnX7, where A includes an alkaline earth metal, Ln includes a lanthanide ion, and X includes a halide ion. In another embodiment, the scintillator composition includes a matrix material represented by ALnX5, where A includes an alkaline earth metal, Ln includes a lanthanide ion, and X includes a halide ion. In these embodiments, the scintillator composition includes an activator ion, where the activator ion includes cerium, or bismuth, or praseodymium, or combinations thereof.

    摘要翻译: 闪烁体组合物包括基质材料,其中基质材料包括碱土金属和镧系元素卤化物。 闪烁体组合物还包括活化剂离子,其中活化剂离子是三价离子。 在一个实施方案中,闪烁体组合物包括由A2LnX7表示的基质材料,其中A包括碱土金属,Ln包括镧系元素离子,X包括卤离子。 在另一个实施方案中,闪烁体组合物包括由ALnX5表示的基质材料,其中A包括碱土金属,Ln包括镧系元素离子,X包括卤离子。 在这些实施方案中,闪烁体组合物包括活化剂离子,其中活化剂离子包括铈或铋或镨,或其组合。