公开(公告)号：US06747269B2

公开(公告)日：2004-06-08

申请号：US10217320

申请日：2002-08-12

Applicant: Satoshi Watanabe

Inventor： Satoshi Watanabe

IPC: G01J104

CPC classification number: G01J11/00

Abstract: Systems and methods of measuring optical pulses are described. In one aspect, an optical pulse measurement system includes an optical signal divider and an optical signal conversion system. The optical signal divider has an optical input for receiving an input optical signal, multiple optical outputs, and a set of multiple optical channels. The optical channels are coupled between the optical input and respective optical outputs and are operable to delay propagation of optical signals, which are divided from the input optical signal, from the optical input to respective optical outputs by different respective amounts of time. The optical signal conversion system is coupled to the optical signal divider optical outputs and is operable to convert temporal intensity distributions of light received from the optical signal divider optical outputs into respective spatial intensity distributions in parallel.

Abstract translation: 描述了测量光脉冲的系统和方法。 一方面，光脉冲测量系统包括光信号分配器和光信号转换系统。 光信号分配器具有用于接收输入光信号，多个光输出和一组多个光信道的光输入。 光信道耦合在光输入和相应的光输出之间，并且可操作以通过不同的相应时间量将从输入光信号分离的光信号的延迟从光输入延迟到相应的光输出。 光信号转换系统耦合到光信号分配器光输出，并且可操作以将从光信号分配器光输出接收的光的时间强度分布转换成相应的空间强度分布并行。

公开(公告)号：US06747268B1

公开(公告)日：2004-06-08

申请号：US09541571

申请日：2000-04-03

Applicant: Ifeanyi Charles Ume

Inventor： Ifeanyi Charles Ume

IPC: G01J104

CPC classification number: G01N29/0681 ,  G01N29/12 ,  G01N29/46 ,  G01N2291/2672

Abstract: The present disclosure relates to an object inspection system. The object inspection system comprises an ultrasound source capable of exciting the object to be tested with a stimulus such that the object vibrates at an ultrasound frequency, at least one optical fiber optically connected to the ultrasound source and adapted to be positioned with its exit end in close proximity to a surface of the object to be tested to deliver the stimulus to the object, a vibration sensing device adapted to sense the ultrasonic vibration displacements created in the object by the ultrasound source, and a system controller which receives the ultrasonic vibration data from the vibration sensing device. In a preferred arrangement, the object inspection system comprises a solder joint inspection system for testing the integrity of solder joints used to connect a computer chip to a printed circuit board.

Abstract translation: 本公开涉及一种物体检查系统。 物体检查系统包括能够以刺激使得物体以超声频率振动的激励物体的超声源，至少一个光学连接到超声波源的光纤，并适于将其出口端定位在 靠近要测试的物体的表面以将刺激传递到物体;适于感测由超声波源在物体中产生的超声波振动位移的振动感测装置，以及从超声波源接收超声波振动数据的系统控制器 振动传感装置。 在优选的布置中，物体检查系统包括焊接检查系统，用于测试用于将计算机芯片连接到印刷电路板的焊接点的完整性。

公开(公告)号：US06734959B2

公开(公告)日：2004-05-11

申请号：US10193522

申请日：2002-07-11

Applicant: David J. Griffiths ,  Jonathan D. Scheuch ,  Sean David Griffin ,  Ronald A. Murray ,  Kelly A. Edgar

Inventor： David J. Griffiths ,  Jonathan D. Scheuch ,  Sean David Griffin ,  Ronald A. Murray ,  Kelly A. Edgar

IPC: G01J104

CPC classification number: G01J1/42 ,  G01J2001/0481 ,  G01J2001/4252

Abstract: A prober for measuring the light output of digital devices integrally formed on a single wafer. The prober includes a light-integrating sphere sequentially aligned with selected devices. Each time that a device is aligned with the sphere, the device aligned with the sphere is activated, so that the light output of each device is individually measured. In the disclosed embodiment, the devices are vertical cavity surface emitting lasers (VCSELs) and light emitting diodes (LEDs).

Abstract translation: 用于测量在单个晶片上整体形成的数字设备的光输出的探测器。 探测器包括与所选设备顺序对准的光积分球。 每当设备与球体对准时，与球体对准的设备被激活，以便单独测量每个设备的光输出。 在所公开的实施例中，器件是垂直腔表面发射激光器（VCSEL）和发光二极管（LED）。

公开(公告)号：US06723978B1

公开(公告)日：2004-04-20

申请号：US09972119

申请日：2001-10-05

Applicant: Carl G. Baldwin, Jr.

Inventor： Carl G. Baldwin, Jr.

IPC: G01J104

CPC classification number: H04B10/40 ,  H04B10/07 ,  H04B10/50

Abstract: A fiber optic conversion method is provided that includes receiving a first electrical signal. A second electrical signal is received. The first and second electrical signals are compared. A float signal is generated when the first and second electrical signals comprise substantially a same electrical signal. A determination is made regarding whether optical signals are being received. A light signal is generated while optical signals are being received. A driver mode is entered in response to the float signal and the light signal being generated simultaneously. The driver mode is remained in while the light signal is being generated.

Abstract translation: 提供一种光纤转换方法，包括接收第一电信号。 接收第二电信号。 比较第一和第二电信号。 当第一和第二电信号包括基本相同的电信号时，产生浮动信号。 确定是否正在接收光信号。 在接收光信号时产生光信号。 响应于浮动信号和同时产生的光信号而输入驱动器模式。 在产生光信号的同时，驱动模式保留。

公开(公告)号：US06624427B2

公开(公告)日：2003-09-23

申请号：US10022707

申请日：2001-12-14

Applicant: Tatsuyo Ishidoya ,  Yasuyuki Minoura ,  Motoyuki Sato

Inventor： Tatsuyo Ishidoya ,  Yasuyuki Minoura ,  Motoyuki Sato

IPC: G01J104

CPC classification number: G01T1/10 ,  C03B23/047 ,  C03B33/06 ,  C03B37/0124 ,  C03B37/16 ,  C03B2201/70

Abstract: A cylindrical silver-activated phosphate glass base material 2 is placed inside a heater 1. The upper end of this base material 2 is set in a supporting section 3, and an extending section 4 provided in vertically movable fashion by means of a drive device is attached to the lower end thereof. As the base material 2 is softened by the heating of the heater 1, and the extending section 4 is lowered by operating the drive device, the base material 2 is extended and assumes a thin bar shape. The extension rate of the extending section 4 driven by the drive device is controlled by an external diameter control section 5, while detecting the external diameter, in such a manner that the external diameter of the extended portion is uniform. The extended portion 6 of the base material 2 is cut to uniform lengths, and the cut faces thereof are polished by a polishing device, thereby yielding a cylindrical dosimeter glass element 7a.

Abstract translation: 将圆筒状的银活化磷酸盐玻璃基材2放置在加热器1的内部。该基材2的上端设置在支撑部3中，通过驱动装置设置成可上下移动的延伸部4， 附着在其下端。 由于通过加热器1的加热使基材2软化，并且通过操作驱动装置而使延伸部4下降，基材2延伸并呈现薄的条状。 由驱动装置驱动的延伸部分4的延伸率由外径控制部分5控制，同时检测外径，使得延伸部分的外径是均匀的。 将基材2的延伸部分6切割成均匀的长度，并且通过抛光装置对其切割面进行抛光，从而产生圆柱形剂量计玻璃元件7a。

公开(公告)号：US06507014B2

公开(公告)日：2003-01-14

申请号：US10080768

申请日：2002-02-22

Applicant: Akishige Ito ,  Katsushi Ohta ,  Toshiyuki Yagi ,  Mitsuru Shinagawa ,  Tadao Nagatsuma ,  Junzo Yamada

Inventor： Akishige Ito ,  Katsushi Ohta ,  Toshiyuki Yagi ,  Mitsuru Shinagawa ,  Tadao Nagatsuma ,  Junzo Yamada

IPC: G01J104

CPC classification number: G01R1/071

Abstract: The present invention relates to an electro-optic probe, which includes the following components: a laser diode for emitting a modulating laser light according to control signals generated in a main body of the electro-optic sampling oscilloscope; a first lens for converting the modulating laser light to a parallel beam; a second lens for focusing the parallel beam; an opto-electronic element having a reflection film at a reflection-end; an isolator device disposed between the first lens and the second lens for transmitting the modulating laser light and separating a reflected beam produced at the reflection film into signal beams; and photo-diodes for converting optical energies of the signal beams separated by the isolator device into respective electrical signals; wherein, the signal beams to enter the photo-diodes are directed to propagate towards the laser diode, and the photo-diodes are disposed in a longitudinal direction of a probe casing.

公开(公告)号：US06346702B1

公开(公告)日：2002-02-12

申请号：US09458911

申请日：1999-12-10

Applicant: Michael A. Davis ,  David R. Fournier ,  David G. Bellemore ,  William M. Stielau

Inventor： Michael A. Davis ,  David R. Fournier ,  David G. Bellemore ,  William M. Stielau

IPC: G01J104

CPC classification number: H04B10/675

Abstract: A fiber Bragg grating peak detection system has a broadband source that provides a broadband optical signal, a fiber Bragg grating and a variable threshold and/or grating profile peak detection unit. The fiber Bragg grating responds to the broadband optical signal, and further responds to a physical parameter, for providing a fiber Bragg grating optical signal containing information about the physical parameter. The variable threshold or grating profile peak detection unit responds to the fiber Bragg grating optical signal, for providing a variable threshold or grating profile peak detection unit signal containing information about a peak detected in the fiber Bragg grating optical signal that is used to determine the physical parameter. The variable threshold or grating profile peak detection unit detects the peak using either a variable threshold peak detection or a grating profile peak detection, or a combination thereof. During the variable threshold peak detection, the variable threshold or grating profile peak detection unit determines a respective local threshold value for each wavelength over a spectral band of the fiber Bragg grating optical signal. During the grating profile peak detection, the detection unit determines a grating profile on each side of the peak.

Abstract translation: 光纤布喇格光栅峰值检测系统具有提供宽带光信号的宽带光源，光纤布拉格光栅和可变阈值和/或光栅轮廓峰值检测单元。 光纤布拉格光栅响应于宽带光信号，并且进一步响应物理参数，用于提供包含关于物理参数的信息的光纤布拉格光栅光信号。 可变阈值或光栅轮廓峰值检测单元响应于光纤布拉格光栅光信号，用于提供可变阈值或光栅轮廓峰值检测单元信号，该信号包含关于在光纤布拉格光栅光信号中检测到的峰值的信息，该信号用于确定物理 参数。 可变阈值或光栅轮廓峰值检测单元使用可变阈值峰值检测或光栅轮廓峰值检测或其组合来检测峰值。 在可变阈值峰值检测期间，可变阈值或光栅轮廓峰值检测单元在光纤布拉格光栅光信号的光谱带上确定每个波长的相应局部阈值。 在光栅轮廓峰值检测期间，检测单元确定峰顶两侧的光栅轮廓。

公开(公告)号：US06222623B1

公开(公告)日：2001-04-24

申请号：US09390125

申请日：1999-09-03

Applicant: William B. Wetherell

Inventor： William B. Wetherell

IPC: G01J104

CPC classification number: G02B27/123 ,  G07D7/121

Abstract: A document validation subassembly is described. The subassembly includes a light mixer for generating at least one substantially homogenous light spot. The light mixer includes a light mixing chamber, at least one input port for accommodating at least one light source, at least one output, and at least one collimator connected to the output. In an implementation, the light mixing chamber is substantially spherical, but other shapes, such as cylindrical chambers, are also contemplated. Also described are solid core light mixer implementations.

Abstract translation: 描述文档验证子组件。 子组件包括用于产生至少一个基本均匀的光斑的光混合器。 光混合器包括光混合室，用于容纳至少一个光源的至少一个输入端口，至少一个输出端和连接到输出端的至少一个准直器。 在一个实施方案中，光混合室基本上是球形的，但也可以考虑其他形状，例如圆柱形腔室。 还描述了实心芯光混合器实现。

公开(公告)号：US06218661B1

公开(公告)日：2001-04-17

申请号：US09179146

申请日：1998-10-26

Applicant: Robert J. Schroeder ,  Tsutomu Yamate ,  Rogerio T. Ramos ,  Raghu Madhavan ,  Eric Udd

Inventor： Robert J. Schroeder ,  Tsutomu Yamate ,  Rogerio T. Ramos ,  Raghu Madhavan ,  Eric Udd

IPC: G01J104

CPC classification number: G01L1/246 ,  G01D5/35316 ,  G01D5/35377 ,  G01K11/3206 ,  G01L9/0076 ,  G01L11/025

Abstract: The apparatus of the present invention include an optical fiber with a Bragg grating formed along a portion of its core and a mechanical structure arranged adjacent to the Bragg grating for amplifying transverse strain on the fiber in the vicinity of the grating. In particular, the mechanical structure is designed to convert ambient pressure into transverse strain on the fiber in the vicinity of the grating. The methods of the invention include converting pressure into transverse strain on an optical fiber, amplifying the effect of pressure on the transverse strain, measuring pressure by determining the spacing between spectral locations related to peaks (or minimums) of light reflected from an optical grating subjected to transverse strain, and measuring the temperature of the grating by determining the locations of the spectral locations related to the peaks (or minimums) of light reflected from the grating. According to one embodiment, the mechanical structure includes a piston mounted in a transducer body through which the optical fiber passes.

Abstract translation: 本发明的装置包括具有沿其芯部的一部分形成的布拉格光栅的光纤和布置于布拉格光栅附近的用于放大光栅附近的光纤上的横向应变的机械结构。 特别地，机械结构被设计成在光栅附近将环境压力转换成光纤上的横向应变。 本发明的方法包括将压力转换成光纤上的横向应变，通过确定与从受光纤光栅所反射的光的峰值（或最小值）相关的光谱位置之间的距离来确定压力对横向应变的影响，测量压力 通过确定与从光栅反射的光的峰值（或最小值）相关的光谱位置的位置来测量光栅的温度。 根据一个实施例，机械结构包括安装在光纤通过的换能器主体中的活塞。

公开(公告)号：US06750443B2

公开(公告)日：2004-06-15

申请号：US10036274

申请日：2001-12-24

Applicant: Tai-Cheng Yu ,  Yao-Hao Chang

Inventor： Tai-Cheng Yu ,  Yao-Hao Chang

IPC: G01J104

CPC classification number: H04B10/25073 ,  G01J1/1626

Abstract: An optical attenuator (10) includes: an optical splitter (11), a collimator (12), two detectors (51, 52), a first and second reflectors (21, 22), an attenuating element (3) and a driving device (4). The optical splitter includes a ferrule (112) and a GRIN (graded index) lens (113). The collimator is similar to the optical splitter. Input optical signals are transmitted from an input fiber (110) through the optical splitter and are then directed to the first reflector. The optical signals reflected by the first reflector pass through the attenuating element and are subsequently reflected to the collimator by the second reflector. The two detectors receive sampling signals via an input and an output sampling fibers (111, 112). The driving device can drive the attenuating element in response to the attenuation ratio coming from the two detectors.

Abstract translation: 光衰减器（10）包括：分光器（11），准直仪（12），两个检测器（51,52），第一和第二反射器（21,22），衰减元件（3）和驱动装置 （4）。 光分路器包括套圈（112）和GRIN（渐变折射率）透镜（113）。 准直器类似于光分路器。 输入光信号从输入光纤（110）通过光分路器传输，然后被引导到第一反射器。 由第一反射器反射的光信号通过衰减元件，随后通过第二反射器反射到准直器。 两个检测器通过输入和输出采样光纤（111,112）接收采样信号。 驱动装置可以响应于来自两个检测器的衰减比而驱动衰减元件。