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1. 发明授权

US4915473A Pressure sensor utilizing a polyurethane optical fiber 失效
标题翻译：采用聚氨酯光纤的压力传感器
公开(公告)号：US4915473A
公开(公告)日：1990-04-10
申请号：US314685
申请日：1989-02-23
申请人： Nathan N. Haese , David R. Pedersen
发明人： Nathan N. Haese , David R. Pedersen
IPC分类号： C08G18/48 , G01L1/24 , G02B1/04
CPC分类号： G01L1/243 , C08G18/4825 , C08G18/4837 , G02B1/046 , Y10T428/24512 , Y10T428/31551
摘要： The invention is a pressure sensing device utilizing a polymer optical fiber with a core comprised of a flexible thermoplastic aliphatic segmented polyurethane. The use of an optical fiber based pressure sensor eliminates the electromagnetic interference problems associated with conventional electronic pressure sensors. Use of polyurethane as the core material for the optical fiber results in an optical fiber with high flexibility, thus making the inventive pressure sensing device more rugged and durable than other optical fiber based pressure sensors.
摘要翻译：本发明是利用具有由柔性热塑性脂肪族分段聚氨酯组成的芯的聚合物光纤的压力感测装置。使用基于光纤的压力传感器消除了与常规电子压力传感器相关的电磁干扰问题。使用聚氨酯作为光纤的芯材导致具有高柔性的光纤，从而使本发明的压力感测装置比其它基于光纤的压力传感器更坚固耐用。

2. 发明授权

US4909594A Optical coupler pressure or load sensor 失效
标题翻译：光耦合器压力或负载传感器
公开(公告)号：US4909594A
公开(公告)日：1990-03-20
申请号：US314686
申请日：1989-02-23
申请人： Nathan N. Haese , David R. Pedersen
发明人： Nathan N. Haese , David R. Pedersen
IPC分类号： G01D5/353 , G02B6/28
CPC分类号： G02B6/2821 , G01D5/35345 , G01D5/35377
摘要： The invention is a durable, zero-based optical coupler pressure/load sensor which is immune from electromagnetic interference.
摘要翻译：本发明是一种耐用的零基光耦合器压力/负载传感器，其免受电磁干扰。

3. 发明授权

US4844578A Jacketed polymer optical waveguides 失效
标题翻译：夹套聚合物光波导
公开(公告)号：US4844578A
公开(公告)日：1989-07-04
申请号：US196587
申请日：1988-05-03
申请人： Peter E. Pierini , Thomas M. McCormack , David R. Pedersen
发明人： Peter E. Pierini , Thomas M. McCormack , David R. Pedersen
IPC分类号： G02B6/00 , B29D11/00 , G02B6/44
CPC分类号： G02B6/443 , G02B6/02033
摘要： The invention is a jacketed polymer optical fiber which comprises: an optical fiber which comprises a core formed from a light transmitting polymeric material having a first refractive index and a cladding formed from a polymeric material having a second refractive index which is lower than the first refractive index; and a jacket about the optical fiber wherein the jacket comprises a chlorinated polyethylene. The jacketed fibers of this invention have a higher service temperature than polyethylene jacketed fibers. The jacketed polymer optical waveguides of this invention are jacketed under conditions such that the optical properties of the polymer optical waveguide are not substantially degraded. The jacketed polymer optical waveguides have relatively low brittleness at use temperatures, good rigidity, and good solvent resistance. They also contain no material which tend to migrate into the polymer optical waveguide.
摘要翻译：本发明是一种夹套聚合物光纤，其包括：光纤，其包括由具有第一折射率的透光聚合材料形成的芯和由具有低于第一折射率的第二折射率的聚合物材料形成的包层指数; 以及围绕光纤的护套，其中护套包括氯化聚乙烯。本发明的夹芯纤维具有比聚乙烯护套纤维更高的使用温度。本发明的夹层聚合物光波导在聚合物光波导的光学特性基本上不劣化的条件下被夹套。夹套聚合物光波导在使用温度下具有相对低的脆性，良好的刚性和良好的耐溶剂性。它们也不含有倾向于迁移到聚合物光波导中的材料。

4. 发明授权

US4867531A Plastic optical fiber for in vivo use having a biocompatible polysiloxane cladding 失效
标题翻译：用于体内使用的塑料光纤具有生物相容性聚硅氧烷包层
公开(公告)号：US4867531A
公开(公告)日：1989-09-19
申请号：US161621
申请日：1988-02-29
申请人： Theodore L. Parker , David R. Pedersen , Peter E. Pierini
发明人： Theodore L. Parker , David R. Pedersen , Peter E. Pierini
IPC分类号： B29D11/00 , G02B1/04
CPC分类号： G02B6/02033 , B29D11/00663 , G02B1/048
摘要： The present invention pertains to a flexible organic polymeric optical fiber core having an adherent flexible organic polymeric cladding on the outer surface. More particularly, the invention relates to an organic polymeric optical fiber having a polysiloxane cladding for long term in vivo use in the tissue of a living mammal, preferably a human being. In addition to compatibility in live tissue and body fluids, such a fiber must be capable of repeatedly being deformed in a small bend radius without losing the ability to transmit light. The clad optical fibers are used to measure levels of components (e.g., pH, oxygen, carbon dioxide) in living, moving tissue such as the heart or lungs.
摘要翻译：本发明涉及在外表面上具有粘附的柔性有机聚合物包层的柔性有机聚合物光纤芯。更具体地说，本发明涉及具有聚硅氧烷包层的有机聚合物光纤，用于在活体哺乳动物（优选人）的组织中长期体内使用。除了在活体组织和体液中的相容性之外，这种纤维必须能够以小的弯曲半径重复变形，而不会失去透光能力。包层光纤用于测量生活中的组分（例如，pH，氧，二氧化碳）的水平，移动诸如心脏或肺的组织。

5. 发明授权

US06735004B1 Rotatable counterbalanced actuator 失效
标题翻译：可旋转平衡执行器
公开(公告)号：US06735004B1
公开(公告)日：2004-05-11
申请号：US10099246
申请日：2002-03-15
申请人： Paul M. Hagelin , David R. Pedersen
发明人： Paul M. Hagelin , David R. Pedersen
IPC分类号： G02B2608
CPC分类号： G02B26/0833 , G02B26/085
摘要： A counterbalanced actuator for steering a beam of light is disclosed. The actuator includes a rotatable actuator member coupled to a substrate, a movable portion of an actuator drive mechanism coupled to the rotatable actuator member, a balancing spring coupled between the substrate and the movable portion of the actuator drive mechanism, and an actuator arm operably coupled to the movable portion of the actuator drive mechanism. The balancing spring maintains the movable portion of the actuator drive mechanism nominally, parallel to the substrate when the actuator arm is rotated. An optical mirror element is coupled to the actuator arm. The actuator also includes apparatus for applying a first drive voltage to the movable portion of the actuator drive mechanism and a second drive voltage to a fixed portion of the actuator drive mechanism to position the mirror. Also disclosed is an optical subassembly for directing at least one beam of light including a plurality of micromirror assemblies on a substrate, where each micromirror assembly includes an optical mirror coupled to a plurality of counterbalanced actuators attached to the substrate. A method of actuating a micromirror assembly and a system for actuation the micromirror assembly is also disclosed.
摘要翻译：公开了一种用于转向光束的平衡致动器。致动器包括联接到基板的可旋转致动器构件，联接到可旋转致动器构件的致动器驱动机构的可动部分，耦合在基板和致动器驱动机构的可动部分之间的平衡弹簧，以及可操作地连接到致动器驱动机构的可动部分。当致动器臂旋转时，平衡弹簧保持驱动器驱动机构的可动部分平行于基板。光学镜元件联接到致动器臂。致动器还包括用于将第一驱动电压施加到致动器驱动机构的可动部分的装置和向致动器驱动机构的固定部分施加第二驱动电压以定位反射镜的装置。还公开了一种用于将包括多个微镜组件的至少一束光引导到衬底上的光学子组件，其中每个微镜组件包括耦合到附接到衬底的多个平衡致动器的光学镜。还公开了一种致动微镜组件的方法和用于致动微镜组件的系统。

6. 发明授权

US4546268A Narrow pulsewidth pulse generator circuit utilizing NPN microwave transistors 失效
标题翻译：利用NPN微波晶体管的窄脉冲脉冲发生器电路
公开(公告)号：US4546268A
公开(公告)日：1985-10-08
申请号：US559561
申请日：1983-12-08
申请人： Stephen P. Caldwell , David R. Pedersen
发明人： Stephen P. Caldwell , David R. Pedersen
IPC分类号： H03K3/57 , H03K5/07
CPC分类号： H03K3/57 , H03K5/07
摘要： A pulse generator circuit for providing pulses having pulse widths in the order of one nanosecond. The circuitry utilizes NPN microwave transistors exclusively to achieve this result.
摘要翻译：一种脉冲发生器电路，用于提供脉冲宽度为1纳秒的脉冲。该电路专门利用NPN微波晶体管来实现这一结果。

7. 发明授权

US4909597A Flexible optical waveguide containing a thermoplastic aliphatic segmented polyurethane core 失效
标题翻译：包含热塑性脂肪族分段聚氨酯芯的柔性光波导
公开(公告)号：US4909597A
公开(公告)日：1990-03-20
申请号：US314728
申请日：1989-02-23
申请人： Theodore L. Parker , David R. Pedersen , Nathan N. Haese
发明人： Theodore L. Parker , David R. Pedersen , Nathan N. Haese
IPC分类号： G02B1/04
CPC分类号： G02B6/02033
摘要： The invention is a novel polymer optical waveguide which contains a thermoplastic aliphatic segmented polyurethane core.
摘要翻译：本发明是一种新型聚合物光波导，其包含热塑性脂族分段的聚氨酯芯。

8. 发明授权

US5006296A Process for the preparation of fibers of stereoregular polystyrene 失效
标题翻译：制备立体定向聚苯乙烯纤维的方法
公开(公告)号：US5006296A
公开(公告)日：1991-04-09
申请号：US239490
申请日：1988-09-01
申请人： David R. Pedersen
发明人： David R. Pedersen
IPC分类号： D01F6/20 , D01F6/22 , D01F6/56
CPC分类号： D01F6/22
摘要： A process for the preparation of fibers of syndiotatic polystyrene, or a mixture of isotactic polystyrene and syndiotactic polystyrene which comprises:A. heating syndiotactic polystyrene, or a mixture of syndiotactic polystyrene and isotactic polystyrene, to a temperature between its crystal melting point and the temperature at which the polystyrene undergoes degradation, wherein the polystyrene has sufficient viscosity to be extruded:B. extruding the polystyrene through an orifice to form a fiber at elevated temperature;C. quenching the fiber by passing the fiber through one or more zones under conditions such that the fiber solidifies; andD. cooling the fiber to ambient temperature.

9. 发明授权

US4893897A Plastic optical fiber for in vivo use having a biocompatible polyurethane cladding 失效
标题翻译：用于体内使用的塑料光纤具有生物相容的聚氨酯包层
公开(公告)号：US4893897A
公开(公告)日：1990-01-16
申请号：US163056
申请日：1988-03-02
申请人： Theodore L. Parker , David R. Pedersen , Jerry D. Moseley
发明人： Theodore L. Parker , David R. Pedersen , Jerry D. Moseley
IPC分类号： G02B1/04
CPC分类号： G02B6/02033 , G02B1/046 , G02B1/048
摘要： The present invention pertains to a flexible organic polymeric optical fiber core having an adherent flexible organic polymeric cladding on the outer surface. Preferably, the polymeric core has a refractive index which is at least 0.01 units greater than the refractive index of the polymeric polyurethane cladding. More particularly, the invention relates to an organic polymeric optical fiber for in vivo use in the tissue of a living mammal, preferably a human being. In addition to compatibility in live tissue and body fluids, such a fiber must be capable of repeatedly being deformed in a small bend radius without losing the ability to transmit light. The clad optical fibers are useful to measure levels of components (e.g. pH, oxygen, carbon dioxide) in moving living tissue, such as the heart or lungs.
摘要翻译：本发明涉及在外表面上具有粘附的柔性有机聚合物包层的柔性有机聚合物光纤芯。优选地，聚合物芯具有比聚合物聚氨酯包层的折射率大至少0.01个单位的折射率。更具体地说，本发明涉及用于活体哺乳动物（优选人）组织中体内使用的有机聚合物光纤。除了在活体组织和体液中的相容性之外，这种纤维必须能够以小的弯曲半径重复变形，而不会失去透光能力。包层光纤可用于测量移动的活体组织（例如心脏或肺）中的组分（例如pH，氧气，二氧化碳）的水平。

10. 发明授权

US4523464A Flowmeter with no moving parts 失效
标题翻译：流量计没有运动部件
公开(公告)号：US4523464A
公开(公告)日：1985-06-18
申请号：US541499
申请日：1983-10-13
申请人： David R. Pedersen , Curtis M. Tong
发明人： David R. Pedersen , Curtis M. Tong
IPC分类号： G01F1/52 , G01F1/20
CPC分类号： G01F1/52 , A61M5/16886
摘要： A simple device for measuring flow rate of liquid in a partially-full pipe. This device comprises a generally vertical, first chamber into which liquid is introduced, a non-opaque, second generally vertical chamber in communication with the lower portion of the first chamber, an orifice communicating with the lower portion of the first and second chambers, an overflow leg and an outlet for liquid passing through the orifice or overflow. The height of liquid in the second chamber provides a visible indication of the flow rate.
摘要翻译：用于测量部分满管中液体流速的简单装置。该装置包括大致垂直的第一室，液体被引入其中，与第一室的下部连通的非不透明的第二大体上垂直的室，与第一和第二室的下部连通的孔，溢流口和液体通过孔口或溢流口。液体在第二室中的高度提供了流量的可见指示。

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