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1. 发明授权

US06617806B2 High brightness microwave lamp 有权
公开(公告)号：US06617806B2
公开(公告)日：2003-09-09
申请号：US09776914
申请日：2001-02-06
申请人： Douglas A. Kirkpatrick , James T. Dolan , Donald A. MacLennan , Brian P. Turner , James E. Simpson
发明人： Douglas A. Kirkpatrick , James T. Dolan , Donald A. MacLennan , Brian P. Turner , James E. Simpson
IPC分类号： H05B4116
CPC分类号： H01J65/044 , Y02B20/22
摘要： An electrodeless microwave discharge lamp includes a source of microwave energy, a microwave cavity, a structure configured to transmit the microwave energy from the source to the microwave cavity, a bulb disposed within the microwave cavity, the bulb including a discharge forming fill which emits light when excited by the microwave energy, and a reflector disposed within the microwave cavity, wherein the reflector defines a reflective cavity which encompasses the bulb within its volume and has an inside surface area which is sufficiently less than an inside surface area of the microwave cavity. A portion of the reflector may define a light emitting aperture which extends from a position closely spaced to the bulb to a light transmissive end of the microwave cavity. Preferably, at least a portion of the reflector is spaced from a wall of the microwave cavity. The lamp may be substantially sealed from environmental contamination. The cavity may include a dielectric material is a sufficient amount to require a reduction in the size of the cavity to support the desired resonant mode.

2. 发明授权

US06313587B1 High frequency inductive lamp and power oscillator 失效
标题翻译：高频感应灯和功率振荡器
公开(公告)号：US06313587B1
公开(公告)日：2001-11-06
申请号：US09434310
申请日：1999-11-05
申请人： Donald A. MacLennan , Lauren E. Dymond, Jr. , Aleksandr Gitsevich , William G. Grimm , Kent Kipling , Douglas A. Kirkpatrick , Samuel A. Ola , James E. Simpson , William C. Trimble , Peter Tsai , Brian P. Turner
发明人： Donald A. MacLennan , Lauren E. Dymond, Jr. , Aleksandr Gitsevich , William G. Grimm , Kent Kipling , Douglas A. Kirkpatrick , Samuel A. Ola , James E. Simpson , William C. Trimble , Peter Tsai , Brian P. Turner
IPC分类号： H05B4116
CPC分类号： H01J61/125 , H01J61/025 , H01J61/12 , H01J61/52 , H01J61/523 , H01J65/044 , H01J65/048 , H05B41/24 , Y02B20/22
摘要： A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and I or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to adjust the driving frequency of the oscillator.
摘要翻译：高频电感耦合无电极灯包括具有小于施加到其上的驱动频率的一半波长的有效电长度的励磁线圈，优选地少得多。驱动频率可以大于100MHz，优选高达915MHz。优选地，激励线圈被配置为具有小于一圈的非螺旋，半圆柱形导电表面，具有结婚戒指的一般形状。在高频时，线圈中的电流形成两个彼此间隔开并平行的环。配置适当，线圈接近亥姆霍兹配置。灯优选地利用封装在反射陶瓷杯中的灯泡，其中形成有预先形成的孔。陶瓷杯可以包括有助于对准的结构特征和I或法兰面以辅助热管理。灯头优选是集成灯头，其包括围绕绝缘陶瓷的金属基体复合体，其中整体形成在陶瓷上的激发。新颖的固态振荡器优选地向灯提供RF功率。振荡器是能够以超过70％效率提供超过70瓦功率的单个有源元件器件。可以采用各种控制电路来调节振荡器的驱动频率。

3. 发明授权

US06476557B1 Non-rotating electrodeless lamp containing molecular fill 有权
标题翻译：非旋转无电极灯含分子填充
公开(公告)号：US06476557B1
公开(公告)日：2002-11-05
申请号：US09423808
申请日：1999-11-12
申请人： Yongzhang Leng , Brian P. Turner , James E. Simpson
发明人： Yongzhang Leng , Brian P. Turner , James E. Simpson
IPC分类号： H01J1720
CPC分类号： H01J65/044 , H01J61/12 , H01J65/042
摘要： An electrodeless lamp includes a stationary bulb (10) containing a fill for producing a discharge, the fill has a primary radiating material which ordinarily produces an unstable discharge in the absence of bulb rotation. The fill further includes an alkali metal in an amount sufficient to stabilize the discharge without bulb rotation. The alkali metal may be, for example, cesium bromide. Preferably, the fill is excited by a non-stationary electric field (E, E1) such as, for example, a circular polarized electric field.
摘要翻译：无电极灯包括容纳用于产生放电的填充物的固定灯泡（10），所述填充物具有主要辐射材料，其在没有灯泡旋转的情况下通常产生不稳定的放电。填充物还包括足以稳定排放而不会发生灯泡旋转的碱金属。碱金属可以是例如溴化铯。优选地，填充物被非平稳电场（E，E1）激发，例如圆极化电场。

4. 发明授权

US5438242A Apparatus for controlling the brightness of a magnetron-excited lamp 失效
标题翻译：用于控制磁控管激励灯的亮度的装置
公开(公告)号：US5438242A
公开(公告)日：1995-08-01
申请号：US80839
申请日：1993-06-24
申请人： James E. Simpson
发明人： James E. Simpson
IPC分类号： H05B41/24 , H05B41/28 , H05B41/392 , H05B37/00
CPC分类号： H05B41/24 , H05B41/2813 , H05B41/3927 , Y02B20/22
摘要： A power supply for providing a stable operating current to a magnetron-excited lamp. The power supply includes a DC to DC inverter for driving a primary winding of a high voltage transformer. The DC to DC inverter has a circuit including two pairs of switching elements for connecting a DC voltage supply to the primary winding. During each half of the switching cycle, one of the switching elements is pulse width modulated while the other remains on for a substantially fixed period of time. During the second half of the cycle, the remaining pair operates so that one switching device is on for a pulse width modulated period of time, and the other is on a substantially constant amount of time. The on time for the pulse width modulated switching elements is defined by an input voltage setting representing a desired brightness level for the lamp, the output magnetron current, and a representative of the integral of the current flowing through the primary of the inverter transformer.
摘要翻译：用于向磁控管激励的灯提供稳定工作电流的电源。电源包括用于驱动高压变压器的初级绕组的DC-DC逆变器。 DC-DC逆变器具有包括用于将DC电压源连接到初级绕组的两对开关元件的电路。在开关周期的每一半期间，其中一个开关元件是脉冲宽度调制的，而另一个开关元件保持在基本上固定的时间段内。在该周期的后半段期间，剩下的一对工作，使得一个开关装置在脉冲宽度调制的时间段内导通，另一个开启时间是基本恒定的。用于脉冲宽度调制的开关元件的接通时间由表示灯的期望亮度水平的输入电压设置，输出磁控管电流以及表示流过逆变器变压器的初级电流的积分的代表来定义。

5. 发明授权

US5227698A Microwave lamp with rotating field 失效
标题翻译：微波灯带旋转场
公开(公告)号：US5227698A
公开(公告)日：1993-07-13
申请号：US850278
申请日：1992-03-12
申请人： James E. Simpson , Mohammad Kamarehi
发明人： James E. Simpson , Mohammad Kamarehi
IPC分类号： H01J65/04 , H05B41/24
CPC分类号： H01J65/044 , H05B41/24
摘要： A microwave powered lamp wherein microwave energy is coupled to a cavity in which an electrodeless bulb is disposed, such that a rotating field of constant ellipticity is established in the cavity.
摘要翻译：一种微波照明灯，其中微波能耦合到其中设置无电极灯泡的空腔，使得在空腔中建立恒定椭圆率的旋转场。

6. 发明授权

US4580023A Microwave oven with circular polarization 失效
标题翻译：具有圆极化的微波炉
公开(公告)号：US4580023A
公开(公告)日：1986-04-01
申请号：US709237
申请日：1985-03-06
申请人： James E. Simpson
发明人： James E. Simpson
IPC分类号： H05B6/72
CPC分类号： H05B6/72
摘要： A circularly polarized microwave oven. Microwave energy is coupled from a waveguide above the ceiling to the cavity by a rotatable vertical probe. A strip transmission line closely spaced to the ceiling to limit radiation therefrom conducts the microwave current from the probe to a helical strip antenna radially offset from the axis of the probe. The helical strip antenna has a cylindrical segment which has a downward slope from its feed end to gradually increase the spacing between the cylindrical segment and the ceiling which functions as a ground plane. The increase in radiative efficiency around the cylindrical segment caused by increasing the spacing to the ceiling offsets the magnitude of the current traveling wave diminishing as a result of radiation losses. Accordingly, the magnitude of the X and Y electric vectors are substantially equal over a relatively wide angle thus defining circular polarization. Connected to the opposite end of the cylindrical segment is a flat or horizontal segment of the helical antenna. Rotation of the probe about its axis moves the helical antenna in a horizontal circular path thus further enhancing the heating uniformity.
摘要翻译：圆极化微波炉。微波能量通过可旋转的垂直探针从天花板上方的波导耦合到空腔。与天花板紧密隔开以限制辐射的带状传输线将微波电流从探针传导到径向偏离探针轴线的螺旋条状天线。螺旋带状天线具有圆柱形段，其从其进给端具有向下的斜面，以逐渐增加用作接地平面的圆柱形段和天花板之间的间隔。由于通过增加到天花板的间距而引起的圆柱形段周围的辐射效率的增加抵消了由于辐射损耗而导致的当前行波的幅度的减小。因此，X和Y电矢量的大小在相对较宽的角度上基本上相等，从而限定圆偏振。连接到圆柱段的另一端是螺旋天线的平坦或水平段。探针围绕其轴的旋转将螺旋天线移动到水平圆形路径中，从而进一步增强了加热均匀性。

7. 发明授权

US07197115B2 Cantilever and straddle x-ray tube configurations for a rotating anode with vacuum transition chambers 失效
标题翻译：悬臂和跨乘X射线管配置用于具有真空过渡室的旋转阳极
公开(公告)号：US07197115B2
公开(公告)日：2007-03-27
申请号：US10710877
申请日：2004-08-10
申请人： Christopher D. Unger , Darren L. Hallman , Walter Smith , James E. Simpson
发明人： Christopher D. Unger , Darren L. Hallman , Walter Smith , James E. Simpson
IPC分类号： H01J35/20
CPC分类号： H01J35/10
摘要： An imaging tube assembly (11) for a computed tomography (CT) system (10) includes an insert (60) that has a vacuum chamber (72). An anode (58) resides within the vacuum chamber (72) and rotates on a shaft (66) via one or more bearing (70). In one embodiment, a seal (52) resides between the insert (60) and the shaft (66). The seal (52) prevents the passage of a gas (80) into the vacuum chamber (72). In another embodiment, a pressure transition chamber (104) is coupled to an insert (60″) and a shaft (66″). The pressure transition chamber (104) has an associated middle fluid pressure that is between an internal fluid pressure of the vacuum chamber (104) and an external fluid pressure of said insert (60″).
摘要翻译：用于计算机断层摄影（CT）系统（10）的成像管组件（11）包括具有真空室（72）的插入件（60）。阳极（58）位于真空室（72）内，经由一个或多个轴承（70）在轴（66）上旋转。在一个实施例中，密封件（52）位于插入件（60）和轴（66）之间。密封件（52）防止气体（80）进入真空室（72）。在另一个实施例中，压力过渡室（104）联接到插入件（60“）和轴（66”）。压力过渡室（104）具有在真空室（104）的内部流体压力和所述插入件（60“）的外部流体压力之间的相关联的中间流体压力。

8. 发明授权

US5910710A Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference 失效
标题翻译：用于为射频干扰降低的无电极灯供电的方法和装置
公开(公告)号：US5910710A
公开(公告)日：1999-06-08
申请号：US754858
申请日：1996-11-22
申请人： James E. Simpson
发明人： James E. Simpson
IPC分类号： H05B41/24 , H05B41/16
CPC分类号： H05B41/24
摘要： An electrodeless lamp waveguide structure includes tuned absorbers for spurious RF signals. A lamp waveguide with an integral frequency selective attenuation includes resonant absorbers positioned within the waveguide to absorb spurious out-of-band RF energy. The absorbers have a negligible effect on energy at the selected frequency used to excite plasma in the lamp. In a first embodiment, one or more thin slabs of lossy magnetic material are affixed to the sidewalls of the waveguide at approximately one quarter wavelength of the spurious signal from an end wall of the waveguide. The positioning of the lossy material optimizes absorption of power from the spurious signal. In a second embodiment, one or more thin slabs of lossy magnetic material are used in conjunction with band rejection waveguide filter elements. In a third embodiment, one or more microstrip filter elements are tuned to the frequency of the spurious signal and positioned within the waveguide to couple and absorb the spurious signal's energy. All three embodiments absorb negligible energy at the selected frequency and so do not significantly diminish the energy efficiency of the lamp.
摘要翻译：无电极灯波导结构包括用于杂散RF信号的调谐吸收器。具有积分频率选择衰减的灯波导包括位于波导内的共振吸收器，以吸收杂散的带外RF能量。吸收体在用于激发灯中的等离子体的选定频率处的能量具有可忽略的影响。在第一实施例中，一个或多个有损磁性材料的薄板被从波导的端壁以大约四分之一波长的杂散信号固定在波导的侧壁上。有损耗材料的定位优化了来自寄生信号的功率吸收。在第二实施例中，有损磁性材料的一个或多个薄板与带阻波导滤波器元件结合使用。在第三实施例中，将一个或多个微带滤波器元件调谐到寄生信号的频率并且定位在波导内以耦合和吸收寄生信号的能量。所有三个实施例在所选频率处吸收可忽略的能量，因此不会显着降低灯的能量效率。

9. 发明授权

US5448135A Apparatus for coupling electromagnetic radiation from a waveguide to an electrodeless lamp 失效
标题翻译：用于将来自波导的电磁辐射耦合到无电极灯的装置
公开(公告)号：US5448135A
公开(公告)日：1995-09-05
申请号：US141961
申请日：1993-10-28
申请人： James E. Simpson
发明人： James E. Simpson
IPC分类号： H05B41/24 , H01J65/04 , H01P5/02 , H01P5/103
CPC分类号： H01P5/103 , H01J65/044
摘要： Apparatus for coupling electromagnetic energy to electrodeless lamps. A waveguide having one end connected to a source of electromagnetic radiation was closed at the second opposite end. A coupling device at the second end couples microwave energy from the waveguide to an electrodeless lamp. The coupling device includes a coaxial transmission line having a center conductor extending through one of the walls of the waveguide adjacent the second end. An alcove partition within the waveguide contacts the extending conductor and forms an alcove in the waveguide. The alcove portion provides for an impedance matching structure between the transmission line and waveguide. The electrodeless lamp which is positioned above the free end of the coaxial transmission line is excited with the coupled microwave energy.
摘要翻译：用于将电磁能耦合到无电极灯的装置。具有连接到电磁辐射源的一端的波导在第二相对端处封闭。第二端的耦合装置将来自波导的微波能量耦合到无电极灯。耦合装置包括一个同轴传输线，其中心导体延伸穿过邻近第二端的波导的一个壁。波导内的凹室分隔件与延伸导体接触并在波导中形成壁龛。凹槽部分提供传输线和波导之间的阻抗匹配结构。位于同轴传输线自由端上方的无电极灯被耦合的微波能量激发。

10. 发明授权

US5361274A Microwave discharge device with TM.sub.NMO cavity 失效
标题翻译：具有TMNMO腔体的微波放电装置
公开(公告)号：US5361274A
公开(公告)日：1994-11-01
申请号：US849719
申请日：1992-03-12
申请人： James E. Simpson , Mohammed Kamarehi , Brian Turner , Michael G. Ury
发明人： James E. Simpson , Mohammed Kamarehi , Brian Turner , Michael G. Ury
IPC分类号： H01J65/04 , H05B41/24 , H05H1/46 , H01S3/093
CPC分类号： H05H1/46 , H01J65/044
摘要： A microwave powered discharge device which utilizes a TM.sub.NMO cavity. A conductive body is positioned at a null in a discharge device which utilizes a TM.sub.210 cavity to reduce direct coupling from the microwave coupling means, e.g., slot of the cavity. A plurality of TM.sub.110 cavities are ganged together, and a single discharge tube extends through all of the cavities.
摘要翻译：一种利用TMNMO腔体的微波放电装置。在使用TM210空腔的放电装置中，导电体位于零点处，以减少来自微波耦合装置（例如腔的槽）的直接耦合。多个TM110腔体组合在一起，并且单个放电管延伸穿过所有空腔。

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