Differential-tilt rytov parameter monitor for atmospheric turbulence
    22.
    发明授权
    Differential-tilt rytov parameter monitor for atmospheric turbulence 失效
    用于大气湍流的差分倾斜rytov参数监视器

    公开(公告)号:US06496252B1

    公开(公告)日:2002-12-17

    申请号:US09579993

    申请日:2000-05-26

    CPC classification number: G01N21/41

    Abstract: An optical configuration and related analysis techniques are presented that provide a practical method for determining the Rytov parameter based on the difference of variances for the differential image motion (average wavefront gradient or wavefront tilt) between two receiving apertures. The Rytov parameter is the log-amplitude variance predicted by an approximate solution to Maxwell's equations for propagation through media with random index of refraction (Rytov theory). It is a useful metric of the optical effects for extended turbulence propagation and is a leading indicator of the performance limitations of adaptive optical compensation devices not related to the transverse coherence diameter. A time-duplex alternative apparatus and a single source alternative apparatus are also disclosed.

    Abstract translation: 提出了一种光学配置和相关分析技术,其提供了基于两个接收孔径之间的差分图像运动(平均波前梯度或波前倾斜)的方差的差异来确定Rytov参数的实际方法。 Rytov参数是通过对具有随机折射率折射率的介质传播的麦克斯韦方程的近似解(Rytov理论)预测的对数幅度方差。 它是扩展湍流传播的光学效应的有用指标,并且是与横向相干直径无关的自适应光学补偿装置的性能限制的领先指标。 还公开了时间双工替代设备和单源替代设备。

    Method and apparatus for determining the time curve of the intensity of radiation in a weathering testing device
    23.
    发明授权
    Method and apparatus for determining the time curve of the intensity of radiation in a weathering testing device 失效
    用于确定风化试验装置中的辐射强度的时间曲线的方法和装置

    公开(公告)号:US06466313B1

    公开(公告)日:2002-10-15

    申请号:US09485333

    申请日:2000-08-14

    CPC classification number: G01N17/004

    Abstract: A method for determining the time curve of the intensity of radiation present at the location of at least one sample which is being examined. The sample follows a circular path of movement in a sealed sample chamber of a weathering testing device, around a stationary radiation device for producing UW and global radiation. At least one sensor which detects the momentary radiation intensity of the radiation device is provided. The sensor moves together with the at least one sample, and is displaced in relation thereto in relation to the radiation device, for example in the peripheral direction of the path of movement. An electrical signal corresponding to the momentary intensity of the radiation is derived by the sensor at set intervals.

    Abstract translation: 确定存在于正在检查的至少一个样品的位置处的辐射强度的时间曲线的方法。 样品遵循在耐候性测试装置的密封样品室内的圆周运动路径,围绕用于产生UW和全球辐射的固定辐射装置。 提供了至少一个检测辐射装置的瞬时辐射强度的传感器。 传感器与至少一个样品一起移动,并且相对于辐射装置相对于其移动,例如在运动路径的周向方向上移动。 传感器以设定的间隔导出对应于辐射的瞬时强度的电信号。

    Method and apparatus for detecting an object within a heating sources's radiating beam
    24.
    发明授权
    Method and apparatus for detecting an object within a heating sources's radiating beam 失效
    用于检测加热源辐射束内的物体的方法和装置

    公开(公告)号:US06444986B1

    公开(公告)日:2002-09-03

    申请号:US09560731

    申请日:2000-04-28

    Inventor: James R. Disser

    CPC classification number: G01J5/12 G01J1/32 G01J5/14

    Abstract: A method and apparatus for detecting for detecting an object within a radiating beam of a radiating source. The method receives reflected and radiated radiation directly from the object to provide a radiation signal. The method then processes the radiation signal to provide a control to the radiating source. A concomitant apparatus comprising a detector and a control circuit is provided. The detector receives reflected and radiated radiation directly from the object and provides a radiation signal indicative of the reflected and radiated radiation received from the object. The control circuit, coupled to the detector, processes the provided radiation signal to provide a control signal to the radiating source.

    Abstract translation: 一种用于检测辐射源的辐射束内的物体的方法和装置。 该方法直接从物体接收反射和辐射辐射,以提供辐射信号。 该方法然后处理辐射信号以提供对辐射源的控制。 提供了一种包括检测器和控制电路的并发设备。 检测器直接从物体接收反射和辐射的辐射,并提供指示从物体接收的反射和辐射辐射的辐射信号。 耦合到检测器的控制电路处理所提供的辐射信号以向辐射源提供控制信号。

    Modulated infrared source
    25.
    发明授权
    Modulated infrared source 失效
    调制红外源

    公开(公告)号:US06420718B1

    公开(公告)日:2002-07-16

    申请号:US05543295

    申请日:1975-01-20

    Applicant: John R. Kreick

    Inventor: John R. Kreick

    Abstract: A modulated infrared source is disclosed in which spatial modulation is accomplished by the rotation of beam forming optics about an infrared source in which a portion of the energy in the beam produced includes energy coming directly from the IR source without being reflected. Close to 100% of the energy from the infrared source is focused by rotating parabolically shaped elements, such that energy losses due to the modulation technique are minimized. The speed of the rotation of the reflective optics is minimized while maintaining sufficiently high modulation frequencies by the provision of four beams from a single source.

    Abstract translation: 公开了一种调制红外源,其中通过围绕红外源的光束形成光学器件的旋转来实现空间调制,其中所产生的光束中的能量的一部分包括直接来自IR源而不被反射的能量。 通过旋转抛物线形元件来聚焦来自红外源的近100%的能量,使得由于调制技术而导致的能量损失最小化。 反射光学器件的旋转速度被最小化,同时通过从单个源提供四个光束来保持足够高的调制频率。

    High efficiency modulator
    26.
    发明授权
    High efficiency modulator 失效
    高效率调制器

    公开(公告)号:US06407400B1

    公开(公告)日:2002-06-18

    申请号:US05678018

    申请日:1976-04-19

    CPC classification number: G02B26/0891 G02B26/04

    Abstract: Apparatus for efficiently modulating the output from an infrared radiation source is provided by a collector/collimator for collecting and collimating the output of the radiation source and a modulator including a stator and at least one rotor. The stator includes a disc of alternating opaque and transparent radial segments having means associated therewith for gathering the radiation from the source and passing substantially all of it to the transparent segments including optical wedges arranged on the opaque segments and a central reflector/collector. The rotor includes a disc of alternating transparent and opaque radial segments. A second rotor may be provided for adding a second modulation and comprises a disc of alternating opaque and transparent radial segments also having optical wedges arranged on the opaque segments and a central reflector.

    Abstract translation: 用于有效调制红外辐射源的输出的装置由收集器/准直器提供,用于收集和准直辐射源的输出,以及包括定子和至少一个转子的调制器。 定子包括具有交替的不透明和透明的径向段的盘,其具有与之相关联的装置,用于收集来自源的辐射,并将其基本上全部传递到包括设置在不透明段上的光楔和中心反射器/收集器的透明段。 转子包括交替的透明和不透明的径向段的盘。 可以提供第二转子用于增加第二调制并且包括具有布置在不透明段上的光楔的中心反射器的交替的不透明和透明的径向段的盘。

    Photometering apparatus
    27.
    发明授权
    Photometering apparatus 失效
    测光装置

    公开(公告)号:US06229602B1

    公开(公告)日:2001-05-08

    申请号:US09179613

    申请日:1998-10-27

    CPC classification number: G01J1/42 G03B7/08 G03B7/09979

    Abstract: A photometering apparatus has a photometering apparatus having a plurality of photometering systems for measuring the brightness of an object. photometering system includes:a light receiving device in which different parts of an object are detected by a plurality of split photodetectors whose light receivers each comprise a detection area which is made separate by at least one insensitive area; a photometering optical system for projecting the image of the object onto the light receiving device; wherein the image of the object formed on the at least one insensitive area of one of the plurality of split photodetectors of one of the plurality of photometering systems is formed on the plurality of detection areas of another of the plurality of split photodetectors of another of the plurality of photometering systems.

    Abstract translation: 测光装置具有测光装置,该测光装置具有用于测量物体的亮度的多个测光系统。 测光系统包括:光接收装置,其中通过多个分裂光电检测器检测物体的不同部分,其光接收器各自包括由至少一个不敏感区域分开的检测区域; 用于将物体的图像投影到光接收装置上的测光光学系统; 其中形成在所述多个测光系统中的一个测光系统的所述多个分离光电检测器中的一个的所述至少一个不敏感区域上的所述对象的图像形成在所述多个测光系统中的另一个的所述多个分离光电检测器中的另一个的所述多个检测区域中 多个测光系统。

    Low power infrared scene projector array and method of manufacture
    28.
    再颁专利
    Low power infrared scene projector array and method of manufacture 有权
    低功率红外场景投影阵列及其制造方法

    公开(公告)号:USRE37146E1

    公开(公告)日:2001-04-24

    申请号:US09239304

    申请日:1999-01-29

    CPC classification number: H01L27/16 G01J5/023

    Abstract: An array for projecting thermal images and a method of making same. The array of the present invention combines a two-tier architecture created with special processing whereby each pixel member resides on an elevated platform directly over discrete pixel control electronics and electrically conducting traces couple a plurality of pixels so that they can be controlled to project thermal images at equal to or faster than video frame rates. Microlens assemblies coupled to each discrete pixel improves the thermal efficiency of the array for certain applications. In the method of fabrication, a semiconductor microbridge-type structure obtains with the use of sacrificial layers under deposited pixel members in a compact array so that the pixel electronics reside beneath their associated pixel and the array electronics inhabit the same chip as the array thereby improving fill factor and time constant of the resulting array.

    Abstract translation: 用于投影热图像的阵列及其制造方法。 本发明的阵列组合了通过特殊处理创建的两层结构,其中每个像素构件驻留在升高的平台上,直接位于离散像素控制电子器件上,导电迹线耦合多个像素,使得它们可被控制以投射热图像 等于或快于视频帧速率。 耦合到每个离散像素的微透镜组件改善了阵列对某些应用的热效率。 在制造方法中,半导体微桥型结构以紧凑的阵列在沉积的像素构件下使用牺牲层获得,使得像素电子器件驻留在其相关联的像素之下,并且阵列电子器件与阵列居住在相同的芯片上,从而改善 所得数组的填充因子和时间常数。

    Electrostatic device for correcting chromatic aberration in a particle-optical apparatus
    29.
    发明授权
    Electrostatic device for correcting chromatic aberration in a particle-optical apparatus 有权
    用于校正粒子光学装置中的色差的静电装置

    公开(公告)号:US06184975B2

    公开(公告)日:2001-02-06

    申请号:US09195887

    申请日:1998-11-19

    CPC classification number: H01J37/153 H01J2237/04924 H01J2237/1534

    Abstract: Electron-optical rotationally symmetrical lenses inevitably suffer from chromatic aberration which often determines the resolution limit at low acceleration voltages. This lens defect cannot be eliminated by compensation by means of rotationally symmetrical fields. In order to improve the resolution nevertheless, it has already been proposed to correct the chromatic aberration by means of a corrector (28) provided with two correction elements (34, 40). Each correction element consists of a number of quadrupole fields. Using the known corrector, it has been found that the chromatic magnification error is inadmissibly high. In order to solve this problem, the correction elements in the corrector according to the invention are provided with at least five layers of electrodes (60-a, 60-b, 60-c, 60-d) which produce quadrupole fields. Because of the strong periodicity of the electron paths in the correcting quadrupole fields, the chromatic magnification error is limited sufficiently (or even reduced to zero) so as to allow the use of the corrector for practical purposes.

    Abstract translation: 电子 - 光学旋转对称透镜不可避免地会遭受色差,其通常决定了在低加速度电压下的分辨率极限。 这种透镜缺陷不能通过旋转对称场的补偿来消除。 为了提高分辨率,已经提出通过具有两个校正元件(34,40)的校正器(28)来校正色像差。 每个校正元件由多个四极场组成。 使用已知的校正器,已经发现色度倍率误差是不允许的。 为了解决这个问题,根据本发明的校正器中的校正元件设置有产生四极场的至少五层电极(60-a,60-b,60-c,60-d)。 由于校正四极场中的电子路径的周期性强,所以色彩倍率误差受到充分限制(或甚至降至零),以便实际上可以使用校正器。

    Optical system adjusting method for energy beam apparatus
    30.
    发明授权
    Optical system adjusting method for energy beam apparatus 有权
    能量束装置的光学系统调整方法

    公开(公告)号:US06836319B2

    公开(公告)日:2004-12-28

    申请号:US10819201

    申请日:2004-04-07

    CPC classification number: H01J37/304 H01J2237/30433 H01J2237/3175

    Abstract: A method for adjusting an optical system of an energy beam apparatus by using a mark signal that is obtained by one-dimensionally or two-dimensionally scanning a mark on a sample with an energy beam. The mark has a one-dimensional or two-dimensional periodic structure. A first mark signal is detected by scanning the mark with a beam. The mark is set on the optical axis of the optical system. A second mark signal is detected by scanning the mark with a beam. The mark is located at a position that is deviated from the optical axis. A deviation of a deflection position is determined based on a phase difference between the first and second mark signals.

    Abstract translation: 一种能量束装置的光学系统的调整方法,该方法是利用能量束对样品上的标记进行二维或二维扫描而得到的标记信号。 标记具有一维或二维周期性结构。 通过用光束扫描标记来检测第一标记信号。 标记设置在光学系统的光轴上。 通过用光束扫描标记来检测第二标记信号。 标记位于偏离光轴的位置。 基于第一和第二标记信号之间的相位差来确定偏转位置的偏差。

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