公开(公告)号：EP0175545A3

公开(公告)日：1987-07-29

申请号：EP85306450

申请日：1985-09-11

Applicant: SYNTEX (U.S.A.) INC.

Inventor： Briggs, Jonathan

IPC: G01J01/00 ,  G01N15/14 ,  G01N21/64 ,  G01N33/53

CPC classification number: G01N33/542 ,  G01N21/64

Abstract: A method for measuring intensity fluctuations of an electromagnetic signal of wavelength between about 350 nm to 1200 nm from a liquid medium autocorrelates the intensity of the signal over a non-zero interval the duration of which is short compared to the mean duration of the fluctuations. Preferably the duration of autocorrelation is between one third and one hundredth of the mean duration of the flucutations. The method has particular applications in the diagnostic area, particularly where such fluctuations are a result of the presence of fluorescent particles in a liquid medium. Methods are also disclosed for determining an analyte in a sample suspected of containing such analyte.

公开(公告)号：WO1997042473A1

公开(公告)日：1997-11-13

申请号：PCT/US1997007761

申请日：1997-05-02

Applicant: PHOTOMETRICS LIMITED

Inventor： PHOTOMETRICS LIMITED ,  PRETTYJOHNS, Keith, N. ,  MARCUS, Stephen, L. ,  SAGAN, Stephen, F.

IPC: G01J01/00

CPC classification number: G01J1/4257

Abstract: Apparatus for determining the luminous intensity distribution of an automotive head light employing a curved mirror (12) and a curved screen (13). A solid state camera (15) is used to obtain a pattern of a head light output from the screen. The system requires a relatively small black box (10) into which the head light output is directed. A beam splitter (14) may be employed to relax the constrains on the positioning of the various components within the box.

Abstract translation: 用于确定使用曲面镜（12）和弯曲屏幕（13）的汽车头灯的发光强度分布的装置。 使用固态照相机（15）来获得从屏幕输出的头灯的图案。 该系统需要一个相对小的黑盒（10），头灯输出被引导到该盒中。 可以使用分束器（14）来放松箱体内的各种部件的定位上的约束。

公开(公告)号：EP0183416A3

公开(公告)日：1988-06-08

申请号：EP85308145

申请日：1985-11-08

Applicant: C. Reichert Optische Werke AG

Inventor： Schindl, Klaus

IPC: G02B21/00 ,  G01J01/00

CPC classification number: G02B21/0096

Abstract: A photometer for use with a microscope having an object plane an image plane and an optical axis between said planes. The photometer includes an optical dividing means adapted to be disposed in the optical axis between the microscope object and image planes, and a reflective element having a reflecting surface. A pin hole occluder is adapted to be arranged on the opposite side of the optical dividing means to the reflective element. An optical imaging device provides an image of the pin hole occluder on the reflecting surface. A semi-reflective element is provided for reflecting light from the light source to the optical dividing means. A detector is arranged in an optical axis including the semi-reflective element, the pin hole occluder, the optical dividing means, the optical imaging device and reflective element. The object and image planes of the microscope and the reflecting surface of the reflective element are conjugate planes, so that further information additional to the pin hole occluder can be imaged into the microscope image plane.

Abstract translation: 一种用于显微镜的光度计，该显微镜具有物体平面和所述平面之间的像面和光轴。 光度计包括适于设置在显微镜物体和像面之间的光轴上的光学分割装置和具有反射表面的反射元件。 针孔闭塞器适于布置在与光学分离装置相对的反射元件的相对侧上。 光学成像装置在反射面上提供针孔闭塞器的图像。 提供了用于将来自光源的光反射到光分割装置的半反射元件。 检测器布置在包括半反射元件，针孔闭塞器，光分离装置，光学成像装置和反射元件的光轴上。 显微镜的物体和像面和反射元件的反射表面是共轭平面，使得可以将针孔闭塞器附加的进一步信息成像到显微镜图像平面中。

公开(公告)号：EP0155813A3

公开(公告)日：1987-07-29

申请号：EP85301725

申请日：1985-03-13

Applicant: SYNTEX (U.S.A.) INC.

Inventor： Briggs, Jonathan

IPC: G01J01/00 ,  G01N15/02 ,  G01N21/64

CPC classification number: G01N21/64 ,  G01N21/47 ,  G01N21/6428 ,  G01N2015/0222 ,  G01N2201/06113 ,  G02B27/48

Abstract: A beam of incident electromagnetic radiation is generated having a spatial distribution of intensity periodically varying in time. A receiver suspected of containing an analyte is irradiated with the beam, and the electromagnetic signal emitted is detected and the correlation, if any, is determined between the periodicity of the applied beam and fluctuations in the detected signal. The method and apparatus have particular applicability in the field of particle detection, e.g. fluorescent particle detection.

公开(公告)号：WO1997031245A1

公开(公告)日：1997-08-28

申请号：PCT/US1997002637

申请日：1997-02-21

Applicant: DIASENSE, INC. ,  WACZYNSKI, Augustyn ,  HENDRICKSON, Mark, L. ,  HARTWICK, David, J.

Inventor： DIASENSE, INC.

IPC: G01J01/00

CPC classification number: G01J5/28 ,  G01J1/0266 ,  G01J1/04 ,  G01J1/044 ,  G01J1/44 ,  G01J3/0232 ,  G01J3/0289 ,  G01J5/30 ,  G01J2001/4242

Abstract: Disclosed is a radiation detector which includes at least one photoconductive detector (6) and a modulator (2), which modulates in an on-off manner radiation passing to the photoconductive detector (6) from a radiation source (4). A bias source (8) is connected to one terminal of the photoconductive detector (6). A first amplifier (17) is connected to the other terminal of the photoconductive detector (6), and a second amplifier (34) receives an output of the first amplifier (17). A first phase detector (36) detects the phase of modulation of the radiation source (4) by the modulator (2) and generates a reference signal relating thereto. A switch (34) in the second amplifier (24) changes, in response to the reference signal generated by the first phase detector (36), the second amplifier between an inverting state and a non-inverting state as the modulator (2) changes the phase of modulation of the radiation.

Abstract translation: 公开了一种辐射检测器，其包括至少一个光电导检测器（6）和调制器（2），其调制从辐射源（4）通过光导检测器（6）的通断方式的辐射。 偏置源（8）连接到光电导检测器（6）的一个端子。 第一放大器（17）连接到光电导检测器（6）的另一个端子，第二放大器（34）接收第一放大器（17）的输出端。 第一相位检测器（36）通过调制器（2）检测辐射源（4）的调制相位并产生与之相关的参考信号。 响应于由第一相位检测器（36）产生的参考信号，第二放大器（24）中的开关（34）响应于调制器（2）改变的反相状态和非反相状态而改变第二放大器 辐射的调制阶段。

公开(公告)号：WO1990005901A1

公开(公告)日：1990-05-31

申请号：PCT/US1989005290

申请日：1989-11-22

Applicant: WEST LODGE RESEARCH

Inventor： WEST LODGE RESEARCH ,  SWANSON, Caleb, V., Jr.

IPC: G01J01/00

CPC classification number: G01N21/3504 ,  G01N2021/0314 ,  G01N2021/178 ,  G01N2021/1793 ,  G01N2021/3513

Abstract: A remote gas analyzer for motor vehicle exhaust emission surveillance in which a planar array (22) of gas analyzer beams (10) intersects substantially an entire cross sectional segment of an exhaust gas plume (12) in order to determine the volume concentration of gas pollutants in the exhaust. In a further variation using more readily available equipment to detect the less prevalent pollutants, the planar array determines the change in amount per unit volume of a first pollutant emitted by a motor vehicle passing the array. The first pollutant having a relatively high and more easily detectable concentration. A second, multispectral gas analyzer beam intersects the exhaust to determine the change in concentration of the less prevalent pollutants with respect to ambient, and also determines the change in concentration of the first pollutants. The ratio of the change in the first pollutant's weight per unit volume to its change in concentration as determined by the second analyzer is used to determine the change in the amount per unit volume of the remaining pollutants.

Abstract translation: 一种用于机动车尾气排放监视的远程气体分析器，其中气体分析器梁（10）的平面阵列（22）基本上与废气羽流（12）的整个横截面段相交，以便确定气体污染物的体积浓度 在排气中。 在使用更容易获得的设备来检测较不普遍的污染物的另一变型中，平面阵列决定了通过阵列的机动车辆发射的第一污染物的每单位体积的量的变化。 第一污染物具有较高且更易于检测的浓度。 第二个多光谱气体分析仪束与排气相交，以确定较不普遍的污染物相对于环境的浓度变化，并且还确定第一污染物的浓度变化。 使用由第二分析仪确定的第一污染物质量每单位体积重量与其浓度变化的比率来确定剩余污染物每单位体积量的变化。

公开(公告)号：WO1997006417A1

公开(公告)日：1997-02-20

申请号：PCT/US1996012604

申请日：1996-08-02

Applicant: JOHNSON, Edward, A.

IPC: G01J01/00

CPC classification number: G01J3/108 ,  H05B2203/003

Abstract: The principal component of an improved IR radiation source described is a radiation filament (3) having a textured surface produced by seeded ion bombardment of a metal foil (10) which is cut to a serpentine shape and mounted in a windowed housing (1). Specific ion bombardment texturing techniques tune the surface to maximize emissions in the desired wavelength range and limit emissions outside that narrow range, particularly at longer wavelengths. A combination of filament surface texture, thickness, material, shape and power circuit feedback control produce wavelength controlled and efficient radiation at much lower power requirements than devices of the prior art.

Abstract translation: 所描述的改进的IR辐射源的主要成分是辐射丝（3），其具有通过金属箔（10）的接种离子轰击产生的纹理表面，所述金属箔被切割成蛇形并且安装在窗户壳体（1）中。 特定的离子轰击纹理技术调谐表面以使期望波长范围内的发射最大化并限制在窄范围之外的发射，特别是在较长波长处。 长丝表面纹理，厚度，材料，形状和功率电路反馈控制的组合产生比现有技术的器件低得多的功率要求的波长控制和有效的辐射。

公开(公告)号：WO1993009412A1

公开(公告)日：1993-05-13

申请号：PCT/US1992008645

申请日：1992-10-12

Applicant: CRITIKON, INC.

Inventor： CRITIKON, INC. ,  HERRERA, Roger, O. ,  BRAIG, James, R. ,  GOLDBERGER, Daniel, S.

IPC: G01J01/00

CPC classification number: G05D23/24 ,  G01J3/108 ,  G01N21/3504 ,  G01N2201/069 ,  H05B3/46

Abstract: An infrared source (200) which provides a miniature, highly stable and efficient source of infrared energy for use with infrared detectors and the like. The infrared source of the invention incorporates a platinum resistance temperature detector (RTD) (302) which is integrated with the heater element (306) to provide a means of electronic servo control of the heater temperature. The heater element (306) and the RTD (302) are tightly coupled thermally to provide accurate, continuous tracking and control of the heater temperature. The infrared source design provides excellent infrared energy output with less than one watt input power to the heater.

公开(公告)号：WO1989000279A2

公开(公告)日：1989-01-12

申请号：PCT/US1988002159

申请日：1988-06-22

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  BURNS, Richard, J. ,  GRIM, Kenneth, R. ,  LEVY, Miguel, E.

IPC: G01J01/00

CPC classification number: G01S13/288 ,  G06J1/005

Abstract: An analog-digital correlator (10) utilizes a plurality of sample and hold circuits (16-0 to 16-(M-1)) to directly store samples of a received analog signal. Bits of a correlation pattern are shifted through stages in a correlation pattern shift register (26). The state of the correlation pattern bits causes the value in the associated sample and hold circuit (16) to either be inverted or noninverted when it is summed with other similarly generated signals from the remaining sample and hold circuits to form the correlation output sum by network (30). The output of network (30) will peak when the bits of the digital correlation pattern signal are shifted to stages in register (26) that are aligned with the sample and hold circuits containing the digitally-impressed code of interest. In the preferred embodiment, a mask shift register (28) is used to selectively disable certain of the sample and hold circuits from affecting the correlation output sum. To this end, mask bits corresponding to the length of the digitally-impressed code are shifted through mask register (28) simultaneously with the correlation pattern bits in register (26).

公开(公告)号：WO1999027334A1

公开(公告)日：1999-06-03

申请号：PCT/US1997021688

申请日：1997-11-21

Applicant: AUTONOMOUS TECHNOLOGIES CORPORATION

Inventor： AUTONOMOUS TECHNOLOGIES CORPORATION ,  FREY, Rudolph, W. ,  BURKHALTER, James, H. ,  ZEPKIN, Neil ,  PAPPELIERS, Edward ,  CAMPIN, John, A.

IPC: G01J01/00

CPC classification number: A61B3/1015 ,  A61F9/00804 ,  A61F2009/00846 ,  A61F2009/00872 ,  A61F2009/0088

Abstract: A system and method for objective measurement and correction of focusing optical systems comprising optics disposed in the path of the beam (18) which directs the beam through the focusing optical system, e.g., and eye (120) and focuses the beam at its rear portion (122). The beam is diffusely reflected back and a wavefront analyzer (26) is disposed in the path of the wavefront projected from the optics and calculates the distortions as an estimate of aberrations of the focusing optical system.

Abstract translation: 一种用于客观测量和校正聚焦光学系统的系统和方法，包括设置在光束（18）的路径中的光学器件，其将光束引导通过聚焦光学系统例如眼睛（120）并且将光束聚焦在其后部 （122）。 光束被漫反射反射，并且波前分析器（26）设置在从光学器件投影的波前的路径中，并且计算失真作为聚焦光学系统的像差的估计。