Matching layer having gradient in impedance for ultrasound transducers
    1.
    发明授权
    Matching layer having gradient in impedance for ultrasound transducers 失效
    匹配层具有超声换能器的阻抗梯度

    公开(公告)号:US06936009B2

    公开(公告)日:2005-08-30

    申请号:US09681220

    申请日:2001-02-27

    IPC分类号: G10K11/02 A61B8/0029

    CPC分类号: G10K11/02 Y10T29/42

    摘要: A matching layer for ultrasound transducers has a gradient in impedance value from one surface to the other surface of the matching layer. The matching layer is composed of a plurality of sublayers made of composite materials and securely attached together and is disposed on the surface of the transducer element. The first sublayer adjacent to the transducer element has an impedance value less than or equal to that of the transducer element. The last sublayer adjacent to the target has an impedance value greater than or equal to that of the target. The impedance values of the sublayers decrease monotonically from the first to the last sublayer.

    摘要翻译: 用于超声换能器的匹配层具有从匹配层的一个表面到另一个表面的阻抗值的梯度。 匹配层由复合材料制成的多个子层组成,并且牢固地附着在一起并设置在换能器元件的表面上。 与换能器元件相邻的第一子层具有小于或等于换能器元件的阻抗值的阻抗值。 与目标相邻的最后一个子层具有大于或等于目标的阻抗值。 子层的阻抗值从第一个子层到最后一个子层单调减小。

    Oled fiber light source
    2.
    发明授权
    Oled fiber light source 失效
    Oled光纤光源

    公开(公告)号:US06538375B1

    公开(公告)日:2003-03-25

    申请号:US09640950

    申请日:2000-08-17

    IPC分类号: H05B3320

    摘要: A flexible organic light emitting diode (OLED) fiber light source is provided. The OLED contains a fiber core, a cathode, at least one organic radiation emitting layer and a transparent anode. The fiber light source may be used as a flexible novelty lighting article or coiled inside a large area lighting source.

    摘要翻译: 提供了柔性有机发光二极管(OLED)光纤光源。 OLED包含纤维芯,阴极,至少一个有机辐射发射层和透明阳极。 纤维光源可以用作柔性新颖照明物品,或者卷绕在大面积照明源内。

    Method of making an electronic device having a single crystal substrate formed by solid state crystal conversion
    3.
    发明授权
    Method of making an electronic device having a single crystal substrate formed by solid state crystal conversion 失效
    制造具有通过固态晶体转换形成的单晶衬底的电子器件的方法

    公开(公告)号:US06214427B1

    公开(公告)日:2001-04-10

    申请号:US09141711

    申请日:1998-08-28

    IPC分类号: C30B102

    摘要: A method of making an electronic device, according to an exemplary embodiment of the invention, comprises the steps of: forming a polycrystalline substrate in a desired shape; converting the polycrystalline substrate into a single crystal substrate using a solid state crystal conversion process; and forming an electronic element on the substrate. Typically, alumina is formed in the shape of a wafer, sintered to form a densified polycrystalline alumina wafer, and heated to a temperature between the melting point of alumina and one-half the melting point of alumina to convert the densified polycrystalline alumina wafer into a sapphire wafer. A light-emitting diode or other electronic device, such as a laser diode, a high frequency microwave device, or an optoelectronic detector, can be formed on the wafer by depositing layers of semiconductor material on the wafer. The solid state crystal conversion process provides several advantages in forming electronic devices. For example, the cost of the single crystal substrate is significantly reduced since crystal growing from a melt is not required. Also, less processing is required after the crystal is formed, since the precursor polycrystalline substrate can be formed to near net shape. In addition, the polycrystalline substrate can be made in many shapes, in contrast to the shapes possible when growing a crystal from a melt.

    摘要翻译: 根据本发明的示例性实施例的制造电子设备的方法包括以下步骤:形成期望形状的多晶衬底; 使用固态晶体转换工艺将多晶衬底转换成单晶衬底; 以及在所述基板上形成电子元件。 通常,氧化铝形成为晶片形状,烧结形成致密的多晶氧化铝晶片,并加热至氧化铝的熔点和氧化铝熔点的一半之间的温度,以将致密化的多晶氧化铝晶片转化为 蓝宝石晶圆 通过在晶片上沉积半导体材料层,可以在晶片上形成诸如激光二极管,高频微波器件或光电子检测器之类的发光二极管或其它电子器件。 固态晶体转换工艺在形成电子器件方面提供了几个优点。 例如,由于不需要从熔体生长的晶体,所以单晶基板的成本显着降低。 此外,在形成晶体之后需要较少的加工,因为前体多晶基板可以形成为近净形状。 此外,与从熔体生长晶体时可能的形状相反,多晶衬底可以制成许多形状。

    Current limiting device with grooved electrode structure
    4.
    发明授权
    Current limiting device with grooved electrode structure 失效
    带槽电极结构的限流装置

    公开(公告)号:US5977861A

    公开(公告)日:1999-11-02

    申请号:US811669

    申请日:1997-03-05

    IPC分类号: H01C1/14 H01C7/02 H01C7/10

    CPC分类号: H01C7/028 H01C1/1406

    摘要: A current limiting device utilizes an electrically conductive composite material and an inhomogeneous distribution of resistance structure. The current limiting device has a conducting filler and at least two electrodes, where at least one of the electrodes comprises a grooved electrode structure. The grooved electrode structure maintains contact between the electrodes and the composite material, even with consumption of the composite material and production of residue during a high current condition.

    摘要翻译: 限流装置利用导电复合材料和电阻结构的不均匀分布。 限流装置具有导电填料和至少两个电极,其中至少一个电极包括沟槽电极结构。 带槽电极结构保持电极和复合材料之间的接触,即使在高电流条件下消耗复合材料并产生残留物。

    Current limiting arrangement and method
    6.
    发明授权
    Current limiting arrangement and method 失效
    电流限制布置和方法

    公开(公告)号:US06535103B1

    公开(公告)日:2003-03-18

    申请号:US08810055

    申请日:1997-03-04

    IPC分类号: H01C710

    摘要: A current limiting arrangement comprises at least two electrodes and at least two electrically conductive composite materials. The current limiting arrangement has predetermined operational bounds. The at least two composite materials each comprising a low pyrolysis temperature binder and an electrically conductive filler. The at least two conductive composite materials are in parallel with one another. Each conductive composite material has electrical and physical characteristics that define operational bounds, and at least two conductive composite materials having at least one different characteristic. A total of the electrical and physical characteristics of the at least two conductive composite materials being substantially similar to the operational bounds of the current limiting arrangement.

    摘要翻译: 电流限制装置包括至少两个电极和至少两个导电复合材料。 电流限制装置具有预定的操作范围。 所述至少两种复合材料各自包含低热解温度粘合剂和导电填料。 所述至少两个导电复合材料彼此平行。 每个导电复合材料具有限定操作界限的电和物理特性,以及具有至少一种不同特性的至少两种导电复合材料。 所述至少两个导电复合材料的总体电特性和物理特性基本上类似于限流装置的操作范围。

    Light emitting device with phosphor composition
    7.
    发明授权
    Light emitting device with phosphor composition 失效
    具有荧光粉组成的发光器件

    公开(公告)号:US06252254B1

    公开(公告)日:2001-06-26

    申请号:US09203212

    申请日:1998-11-30

    IPC分类号: H01L3300

    摘要: The invention relates to a light source comprising a phosphor composition and a light emitting device such as an LED or a laser diode. The phosphor composition absorbs radiation having a first spectrum and emits radiation having a second spectrum and comprises at least one of: YBO3:Ce3+,Tb3+; BaMgAl10O17:Eu2+,Mn2+; (Sr,Ca,Ba)(Al,Ga)2S4:Eu2+; and Y3Al5O12—Ce3+; and at least one of: Y2O2S:Eu3+,Bi3+; YVO4:Eu3+,Bi3+; SrS:Eu2+; SrY2S4:Eu2+; CaLa2S4:Ce3+; and (Ca,Sr)S:Eu2+. The phosphor composition and the light source together can produce white light with pleasing characteristics, such as a color temperature of 3000-6500° K, a color rendering index of about 83-87, and a device luminous efficacy of about 10-20 lumens per watt.

    摘要翻译: 本发明涉及一种包括磷光体组合物和诸如LED或激光二极管的发光器件的光源。 荧光体组合物吸收具有第一光谱的辐射并发射具有第二光谱的辐射,并且包括以下中的至少一种:YBO 3:Ce 3+,Tb 3+; BaMgAl10O17:Eu2 +,Mn2 +; (Sr,Ca,Ba)(Al,Ga)2S4:Eu2 +; 和Y3Al5O12-Ce3 +; 和Y 2 O 2 S:Eu 3+,Bi 3+中的至少一种; YVO4:Eu3 +,Bi3 +; SrS:Eu2 +; SrY2S4:Eu2 +; CaLa2S4:Ce3 +; 和(Ca,Sr)S:Eu 2+。 荧光体组合物和光源可一起产生具有令人满意的特性的白光,例如色温为3000-6500°K,显色指数为约83-87,装置发光效率为约10-20流明 瓦。

    Ignition system for a gas appliance
    8.
    发明授权
    Ignition system for a gas appliance 失效
    燃气用具点火系统

    公开(公告)号:US06217312B1

    公开(公告)日:2001-04-17

    申请号:US09301980

    申请日:1999-04-29

    IPC分类号: F23N522

    摘要: An ignition system for a gas appliance comprises an ignition controller that receives a current from a power source. The ignition controller is also coupled to an ignitor and to a current actuated valve that releases a flow of gas when the current is greater than a first predetermined current value and less than a second predetermined current value. Ignition safety for the gas appliance is provided by establishing a fixed range of current through the ignitor before the gas valve is opened.

    摘要翻译: 用于燃气器具的点火系统包括从电源接收电流的点火控制器。 点火控制器还耦合到点火器和当前致动的阀,当电流大于第一预定电流值且小于第二预定电流值时,释放气体流。 燃气器具的点火安全是通过在燃气阀打开之前通过点火器建立固定的电流范围来提供的。

    Light emitting device with phosphor composition
    9.
    发明授权
    Light emitting device with phosphor composition 失效
    具有荧光粉组成的发光器件

    公开(公告)号:US06580097B1

    公开(公告)日:2003-06-17

    申请号:US09718240

    申请日:2000-11-22

    IPC分类号: H01L3300

    摘要: The invention relates to a light source comprising a phosphor composition 14 and a light emitting device 12 such as an LED or a laser diode 32. The phosphor composition 14 absorbs radiation having a first spectrum and emits radiation having a second spectrum and comprises at least one of: YBO3:Ce3+,Tb3+; BaMgAl10O17:Eu2+,Mn2+; (Sr,Ca,Ba)(Al,Ga)2S4:Eu2+; and Y3Al5O12—Ce3+; and at least one of: Y2O2S:Eu3+,Bi3+; YVO4:Eu3+,Bi3+; SrS:Eu2+; SrY2S4:Eu2+; CaLa2S4:Ce3+; and (Ca,Sr)S:Eu2+. The phosphor composition 14 and the light source 12 together can produce white light with pleasing characteristics, such as a color temperature of 3000-6500° K, a color rendering index of about 83-87, and a device luminous efficacy of about 10-20 lumens per watt.

    摘要翻译: 本发明涉及一种包括磷光体组合物14和诸如LED或激光二极管32的发光器件12的光源。荧光体组合物14吸收具有第一光谱的辐射并且发射具有第二光谱的辐射,并且包括至少一个 的:YBO3:Ce3 +,Tb3 +; BaMgAl10O17:Eu2 +,Mn2 + (Sr,Ca,Ba)(Al,Ga)2S4:Eu2 +; 和Y3Al5O12-Ce3 +; 和Y 2 O 2 S:Eu 3+,Bi 3+中的至少一种; YVO4:Eu3 +,Bi3 +; SrS:Eu2 +; SrY2S4:Eu2 +; CaLa2S4:Ce3 +; 和(Ca,Sr)S:Eu 2+。 荧光体组合物14和光源12一起可以产生具有令人满意的特性的白光,例如色温为3000-6500°K,显色指数为约83-87,器件发光效率为约10-20 流明每瓦。