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1. 发明授权

US06970484B2 Laser tuning by spectrally dependent spatial filtering 失效
公开(公告)号：US06970484B2
公开(公告)日：2005-11-29
申请号：US11106000
申请日：2005-04-13
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.

2. 发明授权

US06959024B2 Laser Tuning by spectrally dependent spatial filtering 有权
标题翻译：激光通过光谱依赖空间滤波进行调谐
公开(公告)号：US06959024B2
公开(公告)日：2005-10-25
申请号：US10308541
申请日：2002-12-02
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman , Serguei Koulikov
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman , Serguei Koulikov
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the amplitude and/or phase profile of the beam) provided by an SDSF tuning element in a laser cavity. The second element of the SDSF tuning mechanism is an intracavity spatial filter which makes the round trip cavity loss a sensitive function of both beam distortion and cavity alignment. Such a laser can be aligned so that a specific beam distortion, which is provided by the SDSF tuning element at a tunable wavelength, is required to obtain minimum round trip cavity loss, thereby providing tunable laser emission. A preferred embodiment of the SDSF tuning mechanism is an external cavity semiconductor laser having a zeroth order acousto-optic tuning element.
摘要翻译：激光调谐机制体现了“光谱依赖空间滤波”（SDSF），并考虑了调谐机制的两个关键要素。 SDSF调谐机构的第一要素是由激光腔中的SDSF调谐元件提供的频谱依赖的光束失真（即光束的振幅和/或相位分布的改变）。 SDSF调谐机构的第二个元素是腔内空间滤波器，其使得往返腔体损耗具有波束失真和腔体对准的敏感功能。这样的激光器可以对齐，使得由SDSF调谐元件提供的可调谐波长的特定光束失真是需要的，以获得最小的往返腔损耗，从而提供可调谐的激光发射。 SDSF调谐机构的优选实施例是具有零级声光调谐元件的外腔半导体激光器。

3. 发明授权

US5578979A Electromagnetic apparatus 失效
标题翻译：电磁装置
公开(公告)号：US5578979A
公开(公告)日：1996-11-26
申请号：US1388
申请日：1993-01-06
申请人： David M. Adams , Jerome K. Hastings
发明人： David M. Adams , Jerome K. Hastings
IPC分类号： H01F7/12 , H01H50/46 , H01F7/10
CPC分类号： H01H50/46 , H01F7/1205
摘要： An improved electromagnetic apparatus includes a core and an armature which is movable relative to the core. A shading ring is connected with the core to provide magnetic flux which is out of phase with magnetic flux from the core. The shading ring includes a base formed a first metal and a layer of a second metal clad to the base. The first metal forming the base work hardens and has a greater resistance to fatigue failure induced by vibration than the second metal of the layer which is clad to the base. However, the second metal forming the clad layer has a greater electrical conductivity than the first metal of the base. The base may be formed of aluminum and the layer of metal clad to the base may be formed of copper. The layer of copper may be clad to the base by an extrusion process.
摘要翻译：改进的电磁装置包括可相对于芯移动的芯和电枢。阴影环与芯连接以提供与来自芯的磁通异相的磁通。遮光环包括形成第一金属的基底和覆盖到基底的第二金属层。形成基体工件的第一金属硬化，并且比包覆到基底的层的第二金属具有比由振动引起的疲劳破坏更大的阻力。然而，形成覆层的第二金属具有比基底的第一金属更大的导电性。基底可以由铝形成，并且包覆到基底的金属层可以由铜形成。铜层可以通过挤出工艺包覆到基体中。

4. 发明授权

US5345459A Method of reducing the thermally-induced shift in the emission wavelength of laser diodes 失效
标题翻译：减少激光二极管发射波长的热诱导位移的方法
公开(公告)号：US5345459A
公开(公告)日：1994-09-06
申请号：US118273
申请日：1993-09-09
申请人： Bruce A. Richardson , Douglas J. S. Beckett , Jozef Finak , Robert A. Bruce , David M. Adams
发明人： Bruce A. Richardson , Douglas J. S. Beckett , Jozef Finak , Robert A. Bruce , David M. Adams
IPC分类号： H01S5/026 , H01S5/042 , H01S5/068 , H01S3/04
CPC分类号： H01S5/068 , H01S5/0261 , H01S5/0425
摘要： A method of reducing thermally-induced emission wavelength shift in laser diodes. In addition to the conventional ridge contact for supplying the modulation current to the laser diode a second ridge contact is formed on the device. A compensation current of substantially the same frequency as the modulation current but having an opposite phase is applied to the second contact. This compensation current is selected to substantially neutralize the transient temperature variations due to changes in the modulation signal and result in a generally steady state thermal situation.
摘要翻译：减少激光二极管中的热诱导发射波长偏移的方法。除了用于向激光二极管提供调制电流的常规脊接触之外，在器件上形成第二脊接触。具有与调制电流基本相同的频率但具有相反相位的补偿电流被施加到第二接点。该补偿电流被选择为基本上中和由于调制信号的变化引起的瞬态温度变化，并且导致大致稳定的状态热情况。

5. 发明申请

US20140035746A1 INTEGRATED CHARGER AND ALARM UNIT 有权
公开(公告)号：US20140035746A1
公开(公告)日：2014-02-06
申请号：US13566339
申请日：2012-08-03
申请人： Roger J. Leyden , David M. Adams
发明人： Roger J. Leyden , David M. Adams
IPC分类号： G08B13/22
CPC分类号： H02J7/0036 , H02J7/0021 , H02J7/0026
摘要： An integrated charger and alarm unit. A plurality of alarm receptacles are in a housing, each for selectively receiving a sensor cord for sensing security status of one of a plurality of chargeable devices. A plurality of charging receptacles are in the housing, one for each alarm receptacle, each for selectively receiving a power cord for charging one of the chargeable devices. A power receptacle in the housing connects to an electrical power source. An electrical circuit is operatively connected to the alarm receptacles, the charging receptacles and the power receptacle. The electrical circuit comprises an alarm control powered by the electrical power source and connected to the alarm receptacles and generating an alarm signal if the security status of any of the plurality of chargeable devices is in an unsecured status. A power supply control regulates power from the electrical power source to each of the charging receptacles.

6. 发明授权

US07035305B2 Monolithically integrated high power laser optical device 有权
公开(公告)号：US07035305B2
公开(公告)日：2006-04-25
申请号：US10141862
申请日：2002-05-10
申请人： David M. Adams , Joan E Haysom , Ian Woods
发明人： David M. Adams , Joan E Haysom , Ian Woods
IPC分类号： H01S5/00 , H01S3/10
CPC分类号： B82Y20/00 , H01S5/026 , H01S5/12 , H01S5/1221 , H01S5/1228 , H01S5/3413 , H01S5/3414 , H01S5/4031 , H01S5/4087 , H01S5/50
摘要： An optical device, including a monolithically integrated diode laser and semiconductor optical amplifier, that has reduced linewidth and improved side mode suppression for a given output power target. In a preferred embodiment, the diode laser is detuned from a gain peak wavelength to an emission wavelength. The semiconductor optical amplifier has an active region that is bandgap shifted to move its gain peak towards the emission wavelength of the laser diode, thus reducing its linewidth enhancement factor. The diode laser is preferably either a gain-coupled or index-coupled distributed feedback laser. The bandgap shift can be effected by known bandgap shifting methods, such as ion implantation, dielectric cap disordering, and laser induced disordering.

7. 发明授权

US08692671B2 Integrated charger and alarm unit 有权
公开(公告)号：US08692671B2
公开(公告)日：2014-04-08
申请号：US13566339
申请日：2012-08-03
申请人： Roger J. Leyden , David M. Adams
发明人： Roger J. Leyden , David M. Adams
IPC分类号： G08B13/14
CPC分类号： H02J7/0036 , H02J7/0021 , H02J7/0026
摘要： An integrated charger and alarm unit. A plurality of alarm receptacles are in a housing, each for selectively receiving a sensor cord for sensing security status of one of a plurality of chargeable devices. A plurality of charging receptacles are in the housing, one for each alarm receptacle, each for selectively receiving a power cord for charging one of the chargeable devices. A power receptacle in the housing connects to an electrical power source. An electrical circuit is operatively connected to the alarm receptacles, the charging receptacles and the power receptacle. The electrical circuit comprises an alarm control powered by the electrical power source and connected to the alarm receptacles and generating an alarm signal if the security status of any of the plurality of chargeable devices is in an unsecured status. A power supply control regulates power from the electrical power source to each of the charging receptacles.

8. 发明授权

US07661160B1 Beach blanket 有权
标题翻译：海滩毯子
公开(公告)号：US07661160B1
公开(公告)日：2010-02-16
申请号：US12366244
申请日：2009-02-05
申请人： David M. Adams
发明人： David M. Adams
IPC分类号： A47G9/06
CPC分类号： A47G9/062
摘要： A beach blanket that remains in an unfolded position while on a flat surface. The beach blanket has a pair of incorporated polyvinyl chloride (PVC) straps to provide internal, structural strength when the beach blanket is in an extended position. Also, the beach blanket has at least one internal wire loop that provides extra structural support when the beach blanket is open.
摘要翻译：在平坦的表面上保持在展开位置的沙滩毯。当沙滩毯处于延伸位置时，沙滩毯上装有一对聚氯乙烯（PVC）带，以提供内部的结构强度。此外，沙滩毯至少有一个内部线环，当沙滩毯打开时，可提供额外的结构支撑。

9. 发明授权

US07225869B2 Methods of isolating hydrajet stimulated zones 有权
标题翻译： Hydrajet刺激区隔离方法
公开(公告)号：US07225869B2
公开(公告)日：2007-06-05
申请号：US10807986
申请日：2004-03-24
申请人： Ronald M. Willett , Jim B. Surjaatmadja , Billy W. McDaniel , Leldon Mark Farabee , David M. Adams , Loyd E. East
发明人： Ronald M. Willett , Jim B. Surjaatmadja , Billy W. McDaniel , Leldon Mark Farabee , David M. Adams , Loyd E. East
IPC分类号： E21B43/112
CPC分类号： E21B43/261 , E21B43/114 , E21B43/25
摘要： The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean formation of interest. Next, the wellbore may or may not be cased depending upon a number of factors including the nature and structure of the subterranean formation. Next, the casing, if one is installed, and wellbore are perforated using a high pressure fluid being ejected from a hydrajetting tool. A first zone of the subterranean formation is then fractured and stimulated. Next, the first zone is temporarily plugged or partially sealed by installing an isolation fluid into the wellbore adjacent to the one or more fractures and/or in the openings thereof, so that subsequent zones can be fractured and additional well operations can be performed.
摘要翻译：本发明涉及一种从随后的井操作中分离水喷射刺激区域的方法。该方法包括将井眼钻入感兴趣的地下地层的步骤。接下来，取决于包括地下地层的性质和结构在内的多个因素，井筒可以是或可以不是套管的。接下来，如果安装了外壳，并且使用从Hydrajetting工具弹出的高压流体穿孔。然后地层的第一区被断裂并受到刺激。接下来，通过将隔离流体安装到与一个或多个裂缝和/或其开口中相邻的井筒中，第一区域被暂时堵塞或部分密封，使得随后的区域可能断裂并且可以执行附加的井操作。

10. 发明授权

US06528238B1 Methods for making patterns in radiation sensitive polymers 有权
标题翻译：在辐射敏感聚合物中制作图案的方法
公开(公告)号：US06528238B1
公开(公告)日：2003-03-04
申请号：US09667622
申请日：2000-09-22
申请人： David Seniuk , Paul J. Paddon , David M. Adams
发明人： David Seniuk , Paul J. Paddon , David M. Adams
IPC分类号： G03F700
CPC分类号： G03F7/70466 , G03F7/2022
摘要： Groove patterns on substrates coated with photoresist are made using the technique of photolithography by exposing photoresist via a reticle. In the instant invention, the pattern is provided on the reticle with a period larger than the final period to be printed on the photoresist. The complete pattern is obtained by subjecting the photoresist to two or more exposures and aligning the substrate relative to the reticle between exposures. In a further embodiment the slits on the reticle defining the line width of the grooves are larger than required and photoresist is subjected to multiple partial exposure. Both embodiments significantly reduce diffraction caused by the reticle and improve the resolution of the technique.
摘要翻译：使用光刻技术通过经由掩模版曝光光致抗蚀剂来制造涂有光致抗蚀剂的基材上的凹槽图案。在本发明中，在掩模版上设置图案，其长度大于要印刷在光致抗蚀剂上的最后周期。完整的图案通过使光致抗蚀剂经受两次或更多次的曝光并且在曝光之间使衬底相对于掩模版对准而获得。在另一个实施例中，限定凹槽的线宽度的标线片上的狭缝大于所需的狭缝，并且光致抗蚀剂经受多次部分曝光。两个实施方案都显着地减少了由掩模版引起的衍射并提高了该技术的分辨率。

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