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    • 4. 发明申请
    • FILTER WHEEL SPECTROMETER
    • 过滤轮检测仪
    • US20110249262A1
    • 2011-10-13
    • US13128799
    • 2009-11-02
    • James T. Russell
    • James T. Russell
    • G01J3/36G02B7/00G02B5/22
    • G01N21/255G01J3/02G01J3/0202G01J3/0235G01J3/36G01J2003/1213G01J2003/1226G01N21/3504G01N2021/317
    • A filter wheel and a spectrometer including the filter wheel are disclosed. The filter wheel has a first support structure on which a first plurality of filters are mounted and a second support structure on which at least one filter is provided. A radiation source generates a radiation beam, and a beam splitter splits the radiation beam into a first detection path and a second detection path. The first plurality of filters are selectively movable into the first detection path. The at least one filter on the second support structure is arranged to be disposed in the second detection path. The spectrometer includes a first radiation detector that detects radiation that passes through the selected filter in the first detection path, and a second radiation detector that detects radiation passing through the filter in the second detection path.
    • 公开了一种滤光轮和包括滤光轮的光谱仪。 滤光轮具有第一支撑结构,第一多个滤光器安装在该第一支撑结构上,第二支撑结构设置有至少一个滤光器。 辐射源产生辐射束,并且分束器将辐射束分裂成第一检测路径和第二检测路径。 第一多个滤波器可选择性地移动到第一检测路径中。 第二支撑结构上的至少一个过滤器布置成设置在第二检测路径中。 光谱仪包括:第一辐射检测器,其检测穿过第一检测路径中的所选滤波器的辐射;以及第二辐射检测器,其检测通过第二检测路径中的滤波器的辐射。
    • 7. 发明授权
    • Optical random access memory having diffractive simplex imaging lens
    • 具有衍射单纯形成像透镜的光学随机存取存储器
    • US5511035A
    • 1996-04-23
    • US272672
    • 1994-07-07
    • James T. Russell
    • James T. Russell
    • G11C11/42G02B3/00G02B3/08G02B13/00G11B7/00G11B7/004G11B7/135G11C7/00G11C11/56G11C13/04H04N1/21
    • G11C7/005G11C11/56G11C13/04G11C13/041
    • An optical memory stores data in an optical data layer capable of selecting altering light such as by changeable transmissivity. Data is organized into a plurality of regions or patches (called pages) in which each page contains a field of data spots storing binary data as the presence or absence of a hole. The data is illuminated by controllable light sources and an array of single element diffractive imaging lenslets, one for each data page, projects the image onto a common array of light sensors. By selective illumination of each data page, one of the single element lenslets images the selected data page of holes onto the light sensors. By selecting a hole size and using a certain range of restricted acceptance angle grooves on the diffractive elements, the data image is optimized for a single diffractive element lens.
    • 光学存储器将数据存储在能够选择改变光的光学数据层中,例如通过可变的透射率。 数据被组织成多个区域或补丁(称为页面),其中每个页面包含存储二进制数据的数据点的字段作为孔的存在或不存在。 数据由可控光源照射,并且单个元素衍射成像小透镜的阵列(每个数据页面一个)将图像投影到共同的光传感器阵列上。 通过对每个数据页进行选择性照明,单个元件小透镜中的一个将所选择的数据页面的图像成像到光传感器上。 通过选择孔尺寸并在衍射元件上使用一定范围的限制接受角度凹槽,数据图像针对单个衍射元件透镜进行了优化。
    • 8. 发明授权
    • Multiple beam optical record playback apparatus for simultaneous scan of
plural data tracks
    • 用于同时扫描多个数据磁道的多光束光学记录重放装置
    • US4074085A
    • 1978-02-14
    • US672458
    • 1976-03-31
    • James T. Russell
    • James T. Russell
    • G05D3/00G05D3/14G11B7/005G11B7/09G11B7/14G11B27/10G11B7/00
    • G05D3/00G05D3/1418G11B27/10G11B27/102G11B7/005G11B7/0901G11B7/14
    • An optical data record playback apparatus is described for simultaneously scanning a plurality of data tracks on the optical record by employing two or more light beams controlled by closed loop servos. First and second optical servo means respectively, are employed to deflect the light beams for tracking of such beams during scanning along the data tracks and for maintaining the proper spacing between beams to cause each beam to follow a different track. In addition, a time adjust means, which may be a third optical servo or an electronic signal delay means, is employed to adjust the time relationship of the two readout signals produced by such light beams. The optical servos may include either movable mirrors or light refraction plates. Alternatively, an electromagnetically deflected bundle of optical fibers can be employed as the first servo and a zoom lens at the output of such fibers as the second servo. Also, a double refraction polarizing device, such as a calcite crystal, can be employed as both the second and third servos by pivoting such crystal about two mutually perpendicular axes.
    • 描述了一种光学数据记录重放装置,用于通过采用由闭环伺服控制的两个或多个光束来同时扫描光学记录上的多个数据轨道。 分别使用第一和第二光学伺服装置来沿着数据轨道扫描期间偏转用于跟踪这种光束的光束,并且用于维持光束之间的适当间隔,以使每个光束跟随不同的轨道。 此外,可以采用可以是第三光学伺服机构或电子信号延迟装置的时间调整装置来调整由这种光束产生的两个读出信号的时间关系。 光学舵机可以包括活动镜或光折射板。 或者,可以使用电磁偏转的光纤束作为第一伺服器,并且在诸如第二伺服器的光纤的输出处使用变焦透镜。 此外,通过将这种晶体绕两个相互垂直的轴线枢转,可以采用诸如方解石晶体的双重折射偏振装置作为第二和第三伺服机构。
    • 9. 发明授权
    • Optical fiber deflection device
    • 光纤偏转装置
    • US3941927A
    • 1976-03-02
    • US522702
    • 1974-11-11
    • James T. Russell
    • James T. Russell
    • G03B27/32A61B19/00B41J2/44G02B6/04G02B6/35G02B26/10G03G15/04G11B7/085G11B7/09G11B7/12G11C13/04G02B5/14G01D5/26H04N1/04H04N3/04
    • G11C13/04G02B26/103G11B7/085G11B7/09G11B7/0937G11B7/12A61B90/10G02B6/3502G02B6/3572G02B6/3578
    • An optical fiber deflection device is described in which an electrical transducer is used for deflecting the fiber in response to an electrical control signal in order to deflect a light beam transmitted through such fiber. The transducer includes a nonmagnetic deflector means attached to the fiber and connected to an electrical current source, for deflection of the fiber by movement of the deflector means. In one embodiment employing an electromagnetic transducer, an electrical conductor is attached along the length of the fiber and is connected to a D.C. current source to produce a magnetic field around the conductor so that they may be deflected by pairs of electromagnetic coils positioned adjacent the side of the conductor when a control signal is applied to such coils. Alternatively, the control signal can be applied to the conductor attached to the optical fiber and a D.C. current caused to flow through the electromagnetic coils. Other embodiments of the invention use a piezoelectric transducer means including a piezoelectric element attached to the optical fiber so that they are deflected in response to a control signal applied to such element. In still another embodiment of the invention, the electromagnetic transducer means includes electromagnetic coils provided around a pair of magnetostrictive wires each having one end fixed and their other ends attached to the fiber, so that such wires expand and contract to deflect the fiber when a control signal is applied to such coils. In a further embodiment, a thermoelectric transducer means is used including a thermal expansion element, such as a bimetal strip, attached to the fiber and an electrical heating element supported adjacent to such expansion member so that when a control signal is applied to such heating element, the expansion member bends an amount corresponding to the current of such signal to deflect the fiber.
    • 描述了一种光纤偏转装置,其中使用电传感器来响应于电控制信号偏转光纤,以便偏转透过这种光纤的光束。 换能器包括附接到光纤并连接到电流源的非磁性偏转器装置,用于通过偏转装置的移动使光纤偏转。 在采用电磁换能器的一个实施例中,电导体沿着光纤的长度被连接并且连接到DC电流源以在导体周围产生磁场,使得它们可以被邻近侧面的成对的电磁线圈偏转 当控制信号被施加到这样的线圈时。 或者,可以将控制信号施加到附接到光纤的导体和导致流过电磁线圈的直流电流。 本发明的其他实施例使用包括附接到光纤的压电元件的压电换能器装置,使得它们响应于施加到这种元件的控制信号而偏转。 在本发明的另一个实施例中,电磁换能器装置包括设置在一对磁致伸缩线周围的电磁线圈,每对磁致伸缩线的一端固定,其另一端连接到纤维上,使得这样的线膨胀和收缩以使光纤偏转, 信号被施加到这样的线圈。 在另一个实施例中,使用热电转换器装置,其包括附接到纤维的热膨胀元件,例如双金属条,以及与该膨胀构件相邻支撑的电加热元件,使得当将控制信号施加到这种加热元件 ,膨胀构件弯曲与这种信号的电流相对应的量以使纤维偏转。