Automated acousto-optic infrared analyzer system
    1.
    发明授权
    Automated acousto-optic infrared analyzer system 失效
    自动声光红外分析仪系统

    公开(公告)号:US4490845A

    公开(公告)日:1984-12-25

    申请号:US345123

    申请日:1982-02-02

    CPC classification number: G01J3/1256 G01J3/42 G01N21/3504

    Abstract: An automated acousto-optic tunable filter infrared analyzer system useable in a variety of industrial and commercial control applications. The system relies upon a narrow band pass tunable acousto-optic filter which is selectively tuned by predetermined rf frequency signals to selectively transmit the narrow band pass of interest which corresponds to a specific molecular species for identification and analysis. The system includes a microcomputer and associated memory function to measure and compare detected signals from an infrared detector which converts the filtered infrared signal to an electrical signal. The memory provides control signals for the computer and for controlling the sequence and frequency of rf energy applied to tune the filter. In this way, the near to mid range infrared can be analyzed for absorption bands corresponding to predetermined molecular species such as combustion product gases, and a feedback signal generated to control the combustion process.

    Abstract translation: 一种可用于各种工业和商业控制应用的自动声光可调滤波器红外分析仪系统。 系统依赖于窄带通可调谐声光滤波器,其通过预定的频率信号选择性地调谐,以选择性地发送对应于特定分子种类的感兴趣的窄带通道用于识别和分析。 该系统包括微型计算机和相关联的记忆功能,用于测量和比较来自红外检测器的检测信号,将红外信号转换成电信号。 存储器为计算机提供控制信号,并控制用于调谐滤波器的rf能量的序列和频率。 以这种方式,可以分析对应于预定分子种类(例如燃烧产物气体)的吸收带的近到中等范围的红外线,以及产生用于控制燃烧过程的反馈信号。

    Infrared acousto-optic tunable filter
    2.
    发明授权
    Infrared acousto-optic tunable filter 失效
    红外声光可调谐滤光片

    公开(公告)号:US4505550A

    公开(公告)日:1985-03-19

    申请号:US345126

    申请日:1982-02-02

    CPC classification number: G02B5/3058 G02F1/116

    Abstract: An improved infrared acousto-optic tunable filter is provided by an acousto-optic birefringent crystal having polished, uncoated input and output faces normal to the radiation incident-on or diffracted-by the crystal, respectively, and wherein crystallographic axis is oriented at about 21 degrees to the incident infrared radiation, rf transducer means coupled to the crystal for tuning or selecting a narrow bandwidth infrared wavelength of interest, and input and output wire grid polarizer are aligned with the crystal. The input wire grid polarizer is aligned to polarize the input infrared radiation in the same plane as the plane of the b-c crystalline axes of the crystal. The output wire grid polarizer is disposed with the parallel conductors aligned transversely to the conductors of the input polarizer, so that only the selected or tuned bandwidth of interest is transmitted through the output polarizer.

    Abstract translation: 改进的红外声光可调谐滤波器由声光双折射晶体提供,其具有抛光的,未涂覆的输入和输出面,其垂直于入射或衍射的晶体的辐射,并且其中晶轴定向为约21 相对于入射的红外辐射,rf传感器装置耦合到晶体,用于调谐或选择感兴趣的窄带宽红外波长,并且输入和输出线栅偏振器与晶体对准。 输入线栅偏振器被对准以使在与晶体的b-c晶轴的平面相同的平面中的输入红外辐射偏振。 输出线栅偏振器布置成平行导体横向于输入偏振器的导体排列,使得仅感兴趣的选定或调谐带宽通过输出偏振器透射。

    Broadband antireflection coating for infrared transmissive materials
    3.
    发明授权
    Broadband antireflection coating for infrared transmissive materials 失效
    用于红外透射材料的宽带防反射涂层

    公开(公告)号:US4436363A

    公开(公告)日:1984-03-13

    申请号:US405825

    申请日:1982-08-06

    CPC classification number: G02B5/285

    Abstract: A broadband antireflection multilayer coating for infrared transmissive materials comprises a first thin film layer selected from the group consisting of zinc-selenide and zinc-sulfide, a second thin film layer selected from the group consisting of lead-fluoride and aluminum oxide and a third thin film layer selected from the group consisting of magnesium-fluoride, barium-fluoride and calcium-fluoride. This antireflection coating is particularly useful with acousto-optic tunable filter systems, wire grid polarizers and infrared frequency doublers.

    Abstract translation: 用于红外透射材料的宽带抗反射多层涂层包括选自硒化锌和硫化锌的第一薄膜层,选自氟化铅和氧化铝的第二薄膜层和第三薄膜 选自氟化镁,氟化钡和氟化钙的薄膜层。 该抗反射涂层对于声光可调滤波器系统,线栅偏振器和红外频率倍增器特别有用。

    Method and apparatus for strain relieving transducers bonded to
acousto-optic devices
    4.
    发明授权
    Method and apparatus for strain relieving transducers bonded to acousto-optic devices 失效
    连接到声光器件的应变消除传感器的方法和装置

    公开(公告)号:US4555160A

    公开(公告)日:1985-11-26

    申请号:US403954

    申请日:1982-08-02

    CPC classification number: G02F1/11

    Abstract: A transducer plate having at least two mounting zones separated by a transverse groove of a depth greater than the desired thickness of the transducer plate obtained after polishing the mounted transducer plate, and a method for mounting the transducer plate to an optical medium to form an acousto-optic device are disclosed.

    Abstract translation: 一种传感器板,其具有至少两个安装区域,该安装区域由深度大于在抛光安装的换能器板之后获得的换能器板的期望厚度的横向槽分隔开,以及用于将换能器板安装到光学介质以形成声音的方法 公开了光学装置。

    Self Q-switched laser
    5.
    发明授权
    Self Q-switched laser 失效
    自Q开关激光器

    公开(公告)号:US3975694A

    公开(公告)日:1976-08-17

    申请号:US443888

    申请日:1974-02-19

    CPC classification number: H01S3/17 H01S3/11 H01S3/08081

    Abstract: An improved self Q-switching Nd--UO.sub.2 -glass laser is provided in which a diffusing medium is included, either within the laser rod or externally thereof to increase the effective volume of the laser rod. Various diffusing means are disclosed including optical inhomogeneities, diffusion coatings, and curvilinear resonators.

    Abstract translation: 提供了一种改进的自Q切换Nd-UO2玻璃激光器,其中包括激光棒内或其外部的扩散介质,以增加激光棒的有效体积。 公开了包括光学不均匀性,扩散涂层和曲线谐振器的各种扩散装置。

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