Method of fabricating a blur film assembly
    1.
    发明授权
    Method of fabricating a blur film assembly 有权
    制造模糊胶片组件的方法

    公开(公告)号:US06270697B1

    公开(公告)日:2001-08-07

    申请号:US09217680

    申请日:1998-12-21

    IPC分类号: B29D1100

    摘要: A blur film is made of a polymeric film material transmissive to infrared energy of a selected waveband, which is affixed to a surface of a substrate transmissive to energy of the same selected infrared waveband. The blur film has a texture or a plurality of lenslets thereon, where the surface of each lenslet is a surface of revolution. In a spatial-filter wheel application, the blur film and substrate are affixed to a support, which in turn is rotatably mounted on a drive. The support is structured such that a portion of its circumference is covered by the blur film and a portion of its circumference is not covered by the blur film. The spatial-filter wheel is rotated in front of a detector to produce alternating blurred and direct images on the detector.

    摘要翻译: 模糊胶片由对所选波段的红外能量透射的聚合物膜材料制成,所述聚合物薄膜材料固定到透射相同所选红外波段的能量的基底表面。 模糊胶片在其上具有纹理或多个小透镜,其中每个小透镜的表面是旋转表面。 在空间滤光轮应用中,模糊胶片和基底固定在支撑件上,支架又可旋转地安装在驱动器上。 支撑体构造成使得其周边的一部分被模糊膜覆盖,并且其圆周的一部分不被模糊膜覆盖。 空间滤光轮在检测器前旋转,以在检测器上产生交替的模糊和直接图像。

    Reactive thermo elastic cryostat
    4.
    发明授权
    Reactive thermo elastic cryostat 失效
    活性热弹性低温恒温器

    公开(公告)号:US6016659A

    公开(公告)日:2000-01-25

    申请号:US961533

    申请日:1997-10-30

    IPC分类号: F25B9/02 G05D23/19 F25B19/02

    摘要: A cryostat (12) with an actuator (40) which reacts to sensed temperature changes via externally controlled thermal heating generated therein. The actuator (40) is constructed with material having a high coefficient of thermal expansion. A flexible heating element (44) is embedded in the actuator material. A temperature sensor (62) provides a signal to cryostat control electronics. Responding to the temperature signal, the control circuitry (60) regulates current to the heating element (44) in the actuator (40). As the actuator temperature increases due to the heat generated by the heating element (44), it expands and moves open an attached needle (50) relative to an orifice (30), thereby increasing cryogen flow and regulating cooling. When the desired cold temperature is attained, current and heating are stopped. Flowing cryogen cools the actuator which shortens the actuator and pulls the attached needle into the orifice to regulate flow. The heating and cooling cycle repeats itself when the sensed temperature rises to an unacceptable value. The heating element (44) provides the ability to control actuator heating. It provides greater sensitivity and travel by inducing actuator temperature change rates and magnitude significantly larger than cryogen changes in temperature, which limit passive actuator designs.

    摘要翻译: 具有致动器(40)的低温恒温器(12),其通过在其中产生的外部控制的热加热与感测的温度变化反应。 致动器(40)由具有高热膨胀系数的材料构成。 柔性加热元件(44)嵌入致动器材料中。 温度传感器(62)向低温恒温器控制电子器件提供信号。 响应温度信号,控制电路(60)调节致动器(40)中的加热元件(44)的电流。 随着致动器温度由于加热元件(44)产生的热量而增加,它相对于孔(30)膨胀并移动连接的针(50),从而增加制冷剂流并调节冷却。 当达到所需的冷温度时,停止电流和加热。 流动的冷冻剂冷却致动器,其缩短致动器并将附着的针拉入孔中以调节流量。 当感测到的温度升高到不可接受的值时,加热和冷却循环自身重复。 加热元件(44)提供控制致动器加热的能力。 它通过引发致动器温度变化率和幅度显着大于冷冻温度变化来提供更大的灵敏度和行程,这限制了被动执行机构的设计。

    Infrared-transparent structure including an adherent, infrared-transparent polymer layer
    8.
    发明授权
    Infrared-transparent structure including an adherent, infrared-transparent polymer layer 失效
    红外透明结构,包括粘附的红外透明聚合物层

    公开(公告)号:US06399190B1

    公开(公告)日:2002-06-04

    申请号:US08690409

    申请日:1996-07-25

    IPC分类号: G02B1314

    摘要: An infrared-transparent structure includes a first infrared-transparent element that is transparent to infrared radiation in the 3.6-7 micrometer wavelength range, preferably coated with a zinc-sulfide antireflective coating, and a layer of a solvent-free, infrared-transparent polymer transparent on the first infrared-transparent element. The polymer is formed of an addition-cured silicone, such as addition-cured dimethyl silicone, and a small amount of an adhesion promoter, such as 3-glycidoxypropyltrimethoxysilane. The polymer layer may either be a surface layer, or it may be used as an adhesive between the first infrared-transparent element and a second infrared-transparent element.

    摘要翻译: 红外线透明结构包括对3.6-7微米波长范围内的红外辐射透明的第一红外透明元件,优选涂覆有硫化锌抗反射涂层,以及一层无溶剂的红外透明聚合物 在第一红外线透明元件上透明。 聚合物由加成固化的硅氧烷如加成固化的二甲基硅氧烷和少量的粘合促进剂如3-环氧丙氧基丙基三甲氧基硅烷形成。 聚合物层可以是表面层,或者它可以用作第一红外线透明元件和第二红外线透明元件之间的粘合剂。