公开(公告)号：US20050002628A1

公开(公告)日：2005-01-06

申请号：US10710303

申请日：2004-07-01

Applicant: Anis Rahman ,  Donald Tomalia

Inventor： Anis Rahman ,  Donald Tomalia

IPC: G02B6/122 ,  G02B6/10

CPC classification number: B82Y30/00 ,  G02B6/1221

Abstract: The present invention discloses a concept of natural index contrast (NIC) for producing photonic waveguides and methods of fabrication thereof. Such waveguide forms the basis of a class of chip-scale micro- and nano-photonic integrated circuits (PICs). The NIC method utilizes the built-in refractive index difference between two layers of dielectric thin films of two different materials, one laid on top of another. This new class of waveguides simplifies the PIC fabrication process significantly. Based on the NIC based waveguides, PICs can be fabricated for a number of photonic applications such as arrayed waveguide grating (AWG), reflective arrayed waveguide grating (RAWG), interleaver, interferometer, and optical sensor. Additionally, several other PICs can also be fabricated via tiers of integration, such as triple-phase integration. Examples of such devices include optical amplifier, wavelength router, sensor, optical modulator, transmitter, receiver, transponder, fully built dense wavelength division multiplexer and demultiplxer, optical power splitter, multicahnnel tunable optical attenuator, and multicahnnel tunable optical add-drop multiplexer. Unlike hybrid integration, triple-phase integration monolithically integrates multiple optical functionalities on a single chip.

Abstract translation: 本发明公开了用于制造光子波导的自然折射率对比度（NIC）的概念及其制造方法。 这种波导形成了一类芯片级微型和纳米光子集成电路（PIC）的基础。 NIC方法利用两层不同材料的两层介电薄膜之间的内置折射率差异，一层叠置在另一层之上。 这种新类型的波导显着简化了PIC制造工艺。 基于NIC的波导，可以为许多光子应用制造PIC，例如阵列波导光栅（AWG），反射阵列波导光栅（RAWG），交织器，干涉仪和光学传感器。 此外，还可以通过集成层（例如三相集成）来制造其他几个PIC。 这种设备的实例包括光放大器，波长路由器，传感器，光调制器，发射机，接收机，应答器，完全建立的密集波分多路复用器和分波器，光功率分配器，多路可调谐光衰减器和多路可调谐光分插复用器。 与混合集成不同，三相集成在单个芯片上单一集成了多个光学功能。

公开(公告)号：US06193515B1

公开(公告)日：2001-02-27

申请号：US09451522

申请日：1999-11-30

Applicant: Anis Rahman

Inventor： Anis Rahman

IPC: A61C300

CPC classification number: A61C3/00 ,  A61C2201/002

Abstract: A color coded elastomeric ring is fit onto a dental instrument. The elastomeric ring includes axial and circumferential formations for increased traction of a dental practitioner's finger to manipulate the instrument. Advantageously, two elastomeric rings are provided, one at each end of the instrument. Each elastomeric ring preferably has an outside profile with a decreasing diameter toward the adjacent end of the instrument. The ring is located adjacent to a receiving port for a tool insert or point.

Abstract translation: 颜色编码的弹性体环适合于牙科仪器。 弹性体环包括用于增加牙科医生手指以操纵器械的牵引力的轴向和周向形成。 有利地，提供两个弹性体环，一个在仪器的两端。 每个弹性体环优选地具有朝向仪器的相邻端部的直径减小的外部轮廓。 环位于与用于工具插入物或点的接收端口相邻处。

公开(公告)号：US6121896A

公开(公告)日：2000-09-19

申请号：US238014

申请日：1999-01-26

Applicant: Anis Rahman

Inventor： Anis Rahman

IPC: G08G1/16 ,  G08G1/00

CPC classification number: G08G1/162

Abstract: A motor vehicle early warning system is provided for enabling a motor vehicle to receive a warning signal (e. g., a brake activation signal) from a preceding vehicle and automatically and instantaneously transmit a warning signal to a following vehicle independently of any reaction time on the part of the driver of the motor vehicle. A receiver is located at the front of each vehicle for receiving a warning signal from the vehicle ahead of it. A transmitter is located at the rear of each vehicle for transmitting a warning signal to the vehicle behind it. A control unit is located on board each vehicle for responding to the reception of a warning signal by it's receiver for automatically causing it's transmitter to transmit a warning signal to the vehicle behind it.

Abstract translation: 提供一种机动车辆预警系统，用于使机动车辆能够接收来自前一车辆的警告信号（例如，制动器启动信号），并且自动且立即地将警告信号发送到后续车辆，而与该部件上的任何反应时间无关 的汽车司机。 接收器位于每个车辆的前部，用于从其前面的车辆接收警告信号。 发射机位于每个车辆的后部，用于向其后面的车辆发送警告信号。 控制单元位于每个车辆上，用于响应于其接收器接收到警告信号，以自动使其发射器向其后面的车辆发送警告信号。