LENSLET ARRAY WITH INTEGRAL TUNED OPTICAL BANDPASS FILTER AND POLARIZATION
    23.
    发明申请
    LENSLET ARRAY WITH INTEGRAL TUNED OPTICAL BANDPASS FILTER AND POLARIZATION 审中-公开
    带有整体调谐光学滤波器和极化的LENSLET阵列

    公开(公告)号:US20140268146A1

    公开(公告)日:2014-09-18

    申请号:US14211206

    申请日:2014-03-14

    Abstract: A spectral radiation detector employs at least one lenslet with a circular blazed grating for diffraction of radiation at a wavelength at nth order to a focal plane A detector is mounted at the focal plane receiving radiation passing through the at least one lenslet for detection at a predetermined order. At least one order filter associated with the at least one lenslet passes radiation at wavelengths corresponding to the predetermined order. In additional embodiments a polarizing filter is associated with the lenslet for additional discrimination of the radiation.

    Abstract translation: 光谱辐射检测器采用至少一个具有圆形闪光光栅的小透镜,用于以相对于焦平面的第n级的波长的辐射衍射。A检测器安装在焦平面处,接收通过至少一个小透镜的辐射,以便以预定的方式检测 订购。 与至少一个小透镜相关联的至少一个顺序滤光器以与预定顺序对应的波长通过辐射。 在另外的实施例中,偏振滤光器与透镜相关联,用于对辐射的附加辨别。

    ECHELLE SPECTROMETER ARRANGEMENT USING INTERNAL PREDISPERSION
    24.
    发明申请
    ECHELLE SPECTROMETER ARRANGEMENT USING INTERNAL PREDISPERSION 有权
    使用内部预测的ECHELLE光谱仪布置

    公开(公告)号:US20110285993A1

    公开(公告)日:2011-11-24

    申请号:US13147190

    申请日:2010-01-25

    Abstract: An Echelle spectrometer arrangement (10) with internal order separation contains an Echelle grating (34) and a dispersing element (38) for order separation so that a two-dimensional spectrum having a plurality of separate orders (56) can be generated, an imagine optical system (18, 22, 28, 46), a flat-panel detector (16), and predispersion means (20) for predispersing the radiation into the direction of traverse dispersion of the dispersion element (38). The arrangement is characterized in that the predispersion means (20) comprise a predispersion element which is arranged along the optical path behind the inlet spacing (12) inside the spectrometer arrangement. The imaging optical system is designed in such a manner that the predispersed radiation can be imaged onto an additional image plane (24) which does not have any boundaries in the predispersion direction and which is arranged along the optical path between the predispersion element (20) and the echelle grating (34). Optical means (20, 68) in the area of the predispersed spectrum are arranged to influence the spatial and/or the spectral beam density distribution on the detector (16).

    Abstract translation: 具有内部顺序分离的Echelle光谱仪装置(10)包含Echelle光栅(34)和分散元件(38),用于顺序分离,使得可以产生具有多个分开的阶数(56)的二维光谱, 光学系统(18,22,28,46),平板检测器(16)和用于将辐射预分散到分散元件(38)的横向分散方向的预分散装置(20)。 该装置的特征在于,预分散装置(20)包括预分散元件,该预分散元件沿着光谱仪装置内的入口间隔(12)的光路布置。 成像光学系统被设计成使得预分散的辐射可以被成像到在预分散方向上没有任何边界并且沿着预分散元件(20)之间的光路布置的附加图像平面(24)上, 和梯形光栅(34)。 在预分散频谱的区域中的光学装置(20,68)被布置成影响检测器(16)上的空间和/或光谱光束密度分布。

    Method and apparatus for monitoring WDM channels and for analyzing dispersed spectrum of light
    26.
    发明授权
    Method and apparatus for monitoring WDM channels and for analyzing dispersed spectrum of light 有权
    用于监测WDM通道和分析光分散光谱的方法和设备

    公开(公告)号:US06967718B1

    公开(公告)日:2005-11-22

    申请号:US10377977

    申请日:2003-02-28

    Abstract: An apparatus for measuring wavelength composition and power of a dispersed spectrum of light comprises a diffractive light modulator and a detector. The diffractive light modulator comprises an array of light modulating pixels operable in a first mode and a second mode. In operation, the dispersed spectrum of light illuminates the diffractive light modulator along the array of light modulating pixels, which selectively directs a subset of the dispersed spectrum of light into the first mode while directing a remainder of the dispersed spectrum of light into the second mode. The detector is optically coupled to the diffractive light modulator. In operation, the detector detects the subset of the dispersed spectrum of light while not detecting the remainder of the dispersed spectrum of light. Each of the light modulating pixels is controlled by signals sent from a controller. The signals comprise a time division multiplex modulation, a code division multiplex modulation, or a combination thereof.

    Abstract translation: 用于测量光分散光谱的波长成分和功率的装置包括衍射光调制器和检测器。 衍射光调制器包括可在第一模式和第二模式下操作的光调制像素的阵列。 在操作中,光的分散光线沿着光调制像素阵列照射衍射光调制器,该阵列选择性地将散射光谱的子集导入第一模式,同时将剩余的分散光谱引导到第二模式 。 检测器光耦合到衍射光调制器。 在操作中,检测器检测光的分散光谱的子集,而不检测光的分散光谱的其余部分。 每个光调制像素由从控制器发送的信号控制。 信号包括时分复用调制,码分多路调制或其组合。

    Miniature optical spectrometer
    27.
    发明申请
    Miniature optical spectrometer 失效
    微型光谱仪

    公开(公告)号:US20050046839A1

    公开(公告)日:2005-03-03

    申请号:US10892832

    申请日:2004-07-15

    Applicant: Bernd Harnisch

    Inventor: Bernd Harnisch

    CPC classification number: G01J3/12 G01J3/1809 G01J2003/1204 G01J2003/1828

    Abstract: A high resolution spectrometer with a large free spectral range comprising an entry slit for a beam of electromagnetic radiation to be analyzed, a first dispersion device for dispersing the beam to be analyzed into various wavelength components in a first direction, a second dispersion device for dispersing each wavelength component output from the first dispersion device in a second direction, and an imaging device comprising a sensitive detection spectrum. surface on which the beam dispersed in the first and second directions is focused, the first dispersion device being an optical filter that varies linearly and has a surface on which the beam to be analyzed is focused, each point on the surface of the filter operating like a pass band filter with a central frequency varying linearly in the first direction.

    Abstract translation: 一种具有大的自由光谱范围的高分辨率光谱仪,包括用于要分析的电磁辐射束的入口狭缝,用于将待分析的光束沿第一方向分散成各种波长分量的第一色散装置,用于分散的第二色散装置 在第一方向上从第一色散装置输出的每个波长分量,以及包括敏感检测光谱的成像装置。 分散在第一和第二方向上的光束的表面被聚焦,第一色散装置是线性变化并且具有待分析光束聚焦的表面的滤光器,滤光器表面上的每个点都像样 具有在第一方向上线性变化的中心频率的通带滤波器。

    Spectral instrument using multiple non-interfering optical beam paths and elements for use therewith

    公开(公告)号:US06714298B2

    公开(公告)日:2004-03-30

    申请号:US09728247

    申请日:2000-11-30

    Applicant: Damond V. Ryer

    Inventor: Damond V. Ryer

    Abstract: A spectrometer, or a spectral instrument using multiple non-interfering optical beam paths and special optical elements. The special optical elements for use with the instrument are used for directing the optical beam and/or altering the form of the beam. The instrument has the potential, depending upon the totality of the optical components incorporated into the instrument, to be a monochromator, a spectroradiometer, a spectrophotometer and a spectral source. The spectral instrument may further be a part of the spectral system. The system may include the spectral instrument, a power module and means for remote control of the instrument. Such remote control may be by use of a personal computer or a control system dedicated to the control, measurement and analysis of the collected information. The multiple non-interfering beam paths are created using specially designed optical elements such as a diffraction grating, a splitter box, a zero back-lash drive system for movement of the grating element. The orientation of and a physical/spatial relationship between the field lenses, slits, return mirror, reflecting prism, turning lenses all define the multiple, preferably two paths. Particularly, there is a double pass through the grating to increase dispersion, reduce scatter while maintaining a perfect temperature independent spectral match for the second pass. Using the same grating twice reduces scatter by about a factor of 1000, increases the dispersion by a factor of two, and eliminates any temperature-related mechanical spectral drift which often is present with two separate monochromators. Because of the specially designed grating structure, the grating can cause the concurrent diffraction of a plurality of incident optical beams, each of which beams have different angles of incidence and different angles of reflection. The path of the incident and the reflected beam to and from the grating is “off-axis”. That is, the beams going to and from the grating do not use the optical axis of the grating structure.

    Imaging spectrograph for multiorder spectroscopy
    29.
    发明授权
    Imaging spectrograph for multiorder spectroscopy 有权
    多光谱成像光谱仪

    公开(公告)号:US06628383B1

    公开(公告)日:2003-09-30

    申请号:US09691725

    申请日:2000-10-18

    CPC classification number: G01J3/2823 G01J3/18 G01J2003/1828

    Abstract: The Ebert-type mounting is modified for use as a multiorder spectrograph, by replacing the spherical primary mirror of the Ebert with a paraboloidal mirror to eliminate the astigmatism and spherical aberration of the Ebert mounting, and by replacing the Ebert's rotating plane grating, normally blazed for use in the first order, with a fixed low-blaze-angle grating blazed at a longer wavelength such that the radiation at the shorter wavelengths, for which the grating will be used, will be most efficiently dispersed into a multiplicity of higher spectral orders. In a preferred embodiment of this invention, these spectral orders are separated using a twice-through cross-dispersing prism mounted near the grating surface, with the grating and prism mounted and aligned together in a crossed-dispersion assembly that is interchangeable with other crossed-dispersion assemblies containing other grating and prism combinations.

    Abstract translation: Ebert型安装被修改用作多级光谱仪,通过用抛物面镜替换Ebert的球形主镜,以消除Ebert安装的散光和球面像差,并通过更换Ebert旋转平面光栅,通常闪耀 用于第一级,具有以较长波长闪耀的固定的低辉度光栅,使得将使用光栅的较短波长的辐射将最有效地分散到多个更高的光谱阶数 。 在本发明的优选实施例中,使用安装在光栅表面附近的两倍交叉分散棱镜来分离这些光谱阶数,其中光栅和棱镜安装在一起,并与交叉色散组件对准, 包含其他光栅和棱镜组合的色散组件。

    Echelle polychromator
    30.
    发明授权
    Echelle polychromator 失效
    Echelle多色层

    公开(公告)号:US5448351A

    公开(公告)日:1995-09-05

    申请号:US157034

    申请日:1994-05-16

    Abstract: An Echelle polychromator 50 has disposed upstream thereof a pre-monochromator 14 comprising a prism 20. The linear dispersion of the pre-monochromator 14 is variable by varying the angular dispersion of the prism 20. A particular spectral position and the close vicinity thereof are analyzed by an Echelle grating 54 with high resolution. Care must be taken that, on the one hand, the detector array 66 of the Echelle polychromator 50 is fully exploited in response to the central wavelength respectively observed and that, on the other hand, interfering orders are kept away from the Echelle polychromator 50. The linear dispersion of the pre-monochromator is variable for this purpose.

    Abstract translation: PCT No.PCT / EP92 / 01270 Sec。 371日期1994年5月16日 102(e)日期1994年5月16日PCT提交1992年6月5日PCT公布。 WO92 / 21948 PCT公开 日期为1992年12月10日。一个梯形多色分光器50已经在其上方设置了包括棱镜20的预单色器14.预单色仪14的线性色散可通过改变棱镜20的角度色散而变化。特定光谱位置 并通过具有高分辨率的Echelle光栅54分析其附近。 必须注意的是,一方面,响应于分别观察到的中心波长,Echelle多色分光器50的检测器阵列66被充分利用,另一方面,干涉顺序被保留离开Echelle多色
    调变换器50。 为了此目的,预单色仪的线性色散是可变的。

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