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    • 4. 发明授权
    • Discharge lamp with reflective jacket
    • 放电灯带反光外套
    • US06291936B1
    • 2001-09-18
    • US09147309
    • 1998-11-25
    • Donald A. MacLennanBrian P. TurnerKent Kipling
    • Donald A. MacLennanBrian P. TurnerKent Kipling
    • H01J6504
    • H01J61/025H01J61/12H01J61/35H01J61/38H01J65/044
    • A discharge lamp includes an envelope, a fill which emits light when excited disposed in the envelope, a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed around the envelope and defining an opening, the reflector being configured to reflect some of the light emitted by the fill back into the fill while allowing some light to exit through the opening. The reflector may be made from a material having a similar thermal index of expansion as compared to the envelope and which is closely spaced to the envelope. The envelope material may be quartz and the reflector material may be either silica or alumina. The reflector may be formed as a jacket having a rigid structure which does not adhere to the envelope. The lamp may further include an optical clement spaced from the envelope and configured to reflect an unwanted component of light which exited the envelope back into the envelope through the opening in the reflector. Light which can be beneficially recaptured includes selected wavelength regions, a selected polarization, and selected angular components.
    • 一种放电灯包括一个外壳,一个在被设置在外壳中时被激发的发光的填充物,耦合到该填充物以激发该填充物并引起该填充物发光的激励功率源,以及设置在该封套周围的反射器, 开口,反射器被配置为将由填充物发射的一些光反射回填充物,同时允许一些光通过开口离开。 反射器可以由与封套相比具有相似的热膨胀指数的材料制成,且与密封件紧密地间隔开。 外壳材料可以是石英,反射器材料可以是二氧化硅或氧化铝。 反射器可以形成为具有刚性结构的护套,其不粘附到封套。 灯可以进一步包括与信封间隔开的光学元件,并被配置为通过反射器中的开口反射离开信封的光的不想要的部分回到信封中。 可以有益地重新捕获的光包括所选择的波长区域,选定的极化和选择的角度分量。
    • 5. 发明授权
    • Lamp method and apparatus using multiple reflections
    • 使用多次反射的灯的方法和装置
    • US06246160B1
    • 2001-06-12
    • US09309272
    • 1999-05-11
    • Donald A. MacLennanBrian P. Turner
    • Donald A. MacLennanBrian P. Turner
    • H01J6504
    • H01J61/35H01J61/025H01J61/12H01J61/38H01J65/044
    • An electrodeless microwave discharge lamp includes an envelope with a discharge forming fill disposed therein which emits light, the fill being capable of absorbing light at one wavelength and re-emitting the absorbed light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill, a source of microwave energy coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed within the microwave cavity and configured to reflect at least some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length.
    • 一种无电极微波放电灯包括一个其中设置有放电形成填充物的发射光的外壳,该填充物能够吸收一个波长的光并且以不同的波长再次发射吸收的光,从填充物发射的光具有第一 在不存在将光反射回填充物的情况下的光谱功率分布,耦合到填充物的微波能量源以激发填充物并使填充物发光;以及反射器,其布置在微波腔内并被配置为至少反射 与第一光谱功率分布相比,退出的光具有第二光谱功率分布,在可见光区域中具有比例地更多的光,其中光再次发生, 由填充物发射的波长相对于吸收的光发生波长偏移,移位的大小与有效的o有关 路径长度
    • 7. 发明授权
    • Aperture lamp
    • US06509675B2
    • 2003-01-21
    • US09874374
    • 2001-06-06
    • Donald A. MacLennanBrian P. Turner
    • Donald A. MacLennanBrian P. Turner
    • H01J6504
    • H01J61/35H01J61/025H01J61/12H01J61/38H01J65/044
    • A discharge lamp includes means for containing a light emitting fill, the fill being capable of absorbing light at one wavelength and re-emitting the light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill; means for exciting the fill to cause the fill to emit light; and means for reflecting some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length. Another discharge lamp includes an envelope; a fill which emits light when excited disposed in the envelope; a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light; and a reflective ceramic structure disposed around the envelope and defining an light emitting opening, wherein the structure comprises a sintered body built up directly on the envelope and made from a combination of alumina and silica.
    • 10. 发明授权
    • High frequency inductive lamp and power oscillator
    • 高频感应灯和功率振荡器
    • US6137237A
    • 2000-10-24
    • US228230
    • 1999-01-11
    • Donald A. MacLennanBrian P. TurnerJames T. DolanDouglas A. KirkpatrickYongzhang Leng
    • Donald A. MacLennanBrian P. TurnerJames T. DolanDouglas A. KirkpatrickYongzhang Leng
    • H01J61/12H01J61/52H01J65/04H05B41/24H05B41/16
    • H05B41/24H01J61/12H01J61/125H01J61/523H01J65/044H01J65/048Y02B20/22
    • 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/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 match the driving frequency of the oscillator to a plurality of tuning states of the lamp.
    • 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/或凸缘面以辅助热管理。 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将振荡器的驱动频率与灯的多个调谐状态相匹配。