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    Reconfigurable compound diffraction grating
    161.
    发明授权
    Reconfigurable compound diffraction grating 失效
    可重构复合衍射光栅

    公开(公告)号：US5999319A

    公开(公告)日：1999-12-07

    申请号：US69502

    申请日：1998-04-29

    Applicant: James Castracane

    Inventor： James Castracane

    IPC: G02B5/18 ,  G02B6/34

    CPC classification number: G01J3/02 ,  G01J3/0235 ,  G01J3/0256 ,  G01J3/1804 ,  G02B5/1828 ,  G02B6/29314

    Abstract: A reconfigurable compound diffraction grating is fabricated using microelectomechanical systems (MEMS) technology. The compound grating structure can be viewed as the superposition of two separately configured gratings. A common lower electrode is placed beneath selected beam elements, known as deflectable beams, to achieve the desired grating configuration (i.e. every other, every third, every fifth, etc.) of the beams in the primary grating. These deflectable beams alone comprise a secondary, lower resolution grating structure. The beam elements are linked to a common upper electrode. Voltage applied across the electrodes creates an electrostatic force that pulls the selected beams down toward the underlying electrode. Changing the vertical position of the selected beams with respect to the other stationary beams presents a different ruling spacing distribution to the incoming radiation. By changing this distribution, the diffracted power among individual diffraction orders of the wavelengths is altered. Controlling the diffracted signal in this way allows for specific diffraction passbands to be fixed on a particular detector or a particular area of a detector. Automated adjustments to the rulings can be very rapidly, which would significantly simplify and reduce the time necessary for complete spectral analysis previously achieved by mechanical movement of diffraction gratings.

    Abstract translation: 使用微机电系统（MEMS）技术制造可重构复合衍射光栅。 复合光栅结构可以看作是两个单独配置的光栅的叠加。 公共的下电极被放置在被称为可偏转光束的所选光束元件下方，以实现初级光栅中的光束的期望的光栅配置（即，每隔一个，每三分之一，每五分之一等等）。 这些可偏转光束单独包括次级较低分辨率的光栅结构。 梁元件连接到共同的上电极。 施加在电极上的电压产生静电力，其将所选择的光束向下拉向底部电极。 相对于其他静止光束改变所选光束的垂直位置对入射辐射呈现不同的刻划间距分布。 通过改变这种分布，波长的各个衍射级之间的衍射功率被改变。 以这种方式控制衍射信号允许将特定的衍射通带固定在特定检测器或检测器的特定区域上。 对规则的自动调整可以非常快速，这将显着简化和减少以前通过衍射光栅的机械运动实现的完整光谱分析所需的时间。

    Rapid-scanning monochromator with moving intermediate slit
    162.
    发明授权
    Rapid-scanning monochromator with moving intermediate slit 失效
    具有移动中间狭缝的快速扫描单色仪

    公开(公告)号：US5285254A

    公开(公告)日：1994-02-08

    申请号：US858899

    申请日：1992-03-27

    Applicant: Richard J. De Sa

    Inventor： Richard J. De Sa

    IPC: G01J3/04 ,  G01J3/06 ,  G01J3/18 ,  G01J3/32

    CPC classification number: G01J3/04 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/1804 ,  G01J2003/064 ,  G01J2003/1823

    Abstract: The present invention is a scanning monochromator for producing a light beam which rapidly and repetitively varies in wavelength. The device is a subtractive double monochromator in which an intermediate slit is moved to effect wavelength scanning; the intermediate slit fitted in a rotating disk positioned at the intermediate focal plane of the monochromator. Two forms of the device are disclosed.

    Abstract translation: 本发明是用于产生在波长上快速且重复变化的光束的扫描单色仪。 该装置是一种减色双色器，其中中间狭缝移动以实现波长扫描; 中间狭缝装配在位于单色仪的中间焦平面处的旋转盘中。 公开了两种形式的装置。

    Czerny-Turner monochromator
    163.
    发明授权
    Czerny-Turner monochromator 失效
    Czerny-Turner单色仪

    公开(公告)号：US5192981A

    公开(公告)日：1993-03-09

    申请号：US516784

    申请日：1990-04-30

    Applicant: Warren S. Slutter ,  Joseph Marcovecchio ,  Robert E. Heinz ,  David A. Kolb

    Inventor： Warren S. Slutter ,  Joseph Marcovecchio ,  Robert E. Heinz ,  David A. Kolb

    IPC: G01J3/18

    CPC classification number: G01J3/1804

    Abstract: A monochromator of the Czerny-Turner type includes an entrance slit, a collimating mirror for receiving light output by the entrance slit, a planar grating for receiving light reflected by the collimating mirror, a focusing mirror for receiving light reflected by the grating, and an exit slit for receiving light focused by the focusing mirror. Light generally proceeds from the entrance slit to the collimating mirror, form the collimating mirror to the grating, from the grating to the focusing mirror and from the focusing mirror to the exit slit. The improvement comprises the use of a single toroidal collimating mirror in the system in combination with a spherical focusing mirror.

    Abstract translation: Czerny-Turner型单色器包括入口狭缝，用于接收由入射狭缝输出的光的准直镜，用于接收由准直镜反射的光的平面光栅，用于接收由光栅反射的光的聚焦镜，以及 出射狭缝，用于接收由聚焦镜聚焦的光。 光通常从入口狭缝进入准直镜，形成从光栅到聚焦反射镜的准直反射镜，从聚焦镜到出射狭缝。 该改进包括在系统中使用单个环形准直镜与球面聚焦镜。

    Monochromator
    164.
    发明授权
    Monochromator 失效
    单色器

    公开(公告)号：US5078495A

    公开(公告)日：1992-01-07

    申请号：US478568

    申请日：1990-02-12

    Applicant: Tatsuo Harada ,  Toshiei Kurosaki ,  Tsuneo Terasawa ,  Toshiaki Kita

    Inventor： Tatsuo Harada ,  Toshiei Kurosaki ,  Tsuneo Terasawa ,  Toshiaki Kita

    IPC: G01J3/18 ,  G02B5/18

    CPC classification number: G01J3/1804 ,  G01J2003/1847

    Abstract: A plane grating, particularly for a monochronomator, is provided with varied-spaced straight and parallel grooves in a light beam path to compensate for other light affecting components, for example a spherical mirror used for collimating or focusing the light beam. The angle of incidence with respect to the light for each of the grooves may vary and the angle of diffraction with respect to the light for each groove may be required to vary with the imperfection of collimation and focusing of the beam. The grooves are varied in their spacing to compensate for the variation of both incidence and diffraction direction.

    Abstract translation: 特别是用于单声道同步器的平面光栅在光束路径中设置有不同间隔的直的和平行的凹槽，以补偿其它影响光的部件，例如用于准直或聚焦光束的球面镜。 相对于每个凹槽的光的入射角可以变化，并且可能需要相对于每个凹槽的光的衍射角度随着光束的准直和聚焦的不完善而变化。 凹槽的间距是变化的，以补偿入射和衍射方向的变化。

    Spectral analyzer and direction indicator and aircraft landing system application
    165.
    发明授权
    Spectral analyzer and direction indicator and aircraft landing system application 失效
    光谱分析仪和方向指示器和飞机着陆系统应用

    公开(公告)号：US4966456A

    公开(公告)日：1990-10-30

    申请号：US374206

    申请日：1989-06-30

    Applicant: Gordon A. Shifrin

    Inventor： Gordon A. Shifrin

    IPC: B64F1/20 ,  G01J3/28 ,  G01J9/00 ,  G01S1/70 ,  G01S3/784

    CPC classification number: B64F1/20 ,  G01J3/021 ,  G01J3/1804 ,  G01J9/00 ,  G01S1/70 ,  G01S3/784 ,  G01J3/2803

    Abstract: A spectral analyzer and direction indicator system (10) is disclosed and includes optical channels (20,30,40) for providing detected optical information indicative of incidence direction and spectral content of incident radiation. Each optical channel includes a reflector element (11,17,23) having a non-ruled section (11a,17a,23a) and a spectrally dispersing ruled section (11b,17b,23b); an analytical optical system (13,19,25); and a detector array (15,21,27). For each reflector element the non-ruled section is tilted in one or two directions relative to the ruled section. The disclosed spectral analyzer and direction indicator system is advantageously utilized as an aircraft based sensor in an aircraft landing system having ground lasers (29L,29R,33L,33R,37L,37R) directed into the landing approach path.

    Abstract translation: 公开了一种光谱分析仪和方向指示器系统（10），并且包括用于提供指示入射辐射的入射方向和光谱含量的检测光信息的光通道（20,30,40）。 每个光通道包括具有非刻度部分（11a，17a，23a）和光谱分散刻划部分（11b，17b，23b）的反射器元件（11,17,23）。 分析光学系统（13,19,25）; 和检测器阵列（15,21,27）。 对于每个反射器元件，非划线部分相对于刻划部分在一个或两个方向上倾斜。 所公开的频谱分析仪和方向指示器系统有利地用作飞行器着陆系统中的基于飞机的传感器，其具有被引导到着陆进场路径中的地面激光器（29L，29R，33L，33R，37L，37R）。

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