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1.发明授权
公开(公告)号：US5491579A
公开(公告)日：1996-02-13
申请号：US251146
申请日：1994-05-31
CPC分类号： G02F1/3523 , G02F1/0147
摘要： A broadband thermal optical limiter for protecting a light-sensitive object from intense laser beams at all near ultraviolet, visible and near infrared wavelengths is disclosed. The broadband thermal optical limiter comprises: a sample cell containing a solution of broadband absorber material dissolved in a thermal solvent; and a first optical device for converging an incident laser beam into the sample cell. The sample cell is responsive to a converged incident laser beam below a predetermined intensity level for passing therethrough the converged incident laser beam below the predetermined intensity level. The sample cell is also responsive to a converged incident laser beam at or above a predetermined intensity level for thermally defocusing substantially all of the converged incident laser beam in different directions and passing therethrough only a remaining small portion of the converged incident laser beam at or above the predetermined intensity level. The broadband thermal optical limiter further includes a second optical device for focusing substantially all of the laser beam passing through the sample cell into the light-sensitive object to be protected. A collecting aperture may be disposed in front of the second optical device for substantially blocking all light deflected by the protective element and passing therethrough into the second optical device only a small portion of the focused incident light beam at or above the predetermined intensity level.
摘要翻译： 公开了一种用于在所有近紫外线，可见光和近红外波长处保护光敏物体免受强激光束的宽带热光学限制器。 宽带热光学限制器包括：样品池，其含有溶解在热溶剂中的宽带吸收材料溶液; 以及用于将入射的激光束会聚到样品池中的第一光学装置。 采样单元响应于在预定强度水平以下的会聚入射激光束，以将会聚的入射激光束通过低于预定强度水平。 样品池还响应于等于或高于预定强度水平的会聚入射激光束，用于在不同方向上基本上使所有会聚的入射激光束散焦，并且仅通过会聚入射激光束的剩余小部分在等于或高于 预定强度水平。 宽带热光学限制器还包括第二光学装置，用于将通过样品池的基本上所有的激光束聚焦到待保护的光敏物体中。 收集孔可以设置在第二光学装置的前面，用于基本上阻挡由保护元件偏转的所有光，并且在预定强度水平或高于预定强度水平的情况下仅将聚焦入射光束的一小部分穿过第二光学装置。
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2.发明授权Hybrid thermal-defocusing/nonlinear-scattering broadband optical limiter for the protection of eyes and sensors 失效用于保护眼睛和传感器的混合热散焦/非线性散射宽带光限制器公开(公告)号：US06297918B1
公开(公告)日：2001-10-02
申请号：US08430956
申请日：1995-04-28
IPC分类号： G02B523
CPC分类号： G02F1/3523 , G02F2203/52
摘要： A passive optical limiter for protecting a light-sensitive object from damage due to an incident light beam above a first predetermined value of light intensity is disclosed. The passive optical limiter comprises: a first lens for focusing an incident light beam to a focal point; a protective element disposed near the focal point, the protective element being responsive to a focused incident light beam below the first predetermined intensity level for passing therethrough the focused incident light beam below the first predetermined intensity level, the protective element being responsive to a focused incident light beam between the first predetermined intensity level and a higher second predetermined intensity level for deflecting substantially all of the focused incident light beam into rings of light and passing therethrough only a small portion of the converged incident light beam between the first and second predetermined intensity levels, and the protective element including a scattering element responsive to incident light at or above the second predetermined intensity level for scattering that incident light in all directions to decrease the intensity level of the incident light below a damage threshold of the light sensitive object; and a second lens for focusing substantially all of the light passing through the the protective element and the second lens onto the light-sensitive object.
摘要翻译： 公开了一种用于保护光敏物体免受由高于第一预定光强度的入射光束造成的损坏的无源光学限制器。 无源光限制器包括：用于将入射光束聚焦到焦点的第一透镜; 设置在所述焦点附近的保护元件，所述保护元件响应于所述第一预定强度水平以下的聚焦入射光束，以将聚焦的入射光束穿过所述第一预定强度水平以下，所述保护元件响应于聚焦事件 在第一预定强度水平和较高的第二预定强度水平之间的光束，用于将基本上所有聚焦的入射光束偏转到光环中，并且仅在第一和第二预定强度水平之间穿过会聚入射光束的一小部分 并且所述保护元件包括响应于等于或高于所述第二预定强度水平的入射光的散射元件，用于在所有方向上散射所述入射光，以将入射光的强度水平降低到所述光敏物体的损伤阈值以下。 以及用于将基本上将通过保护元件和第二透镜的所有光聚焦到光敏物体上的第二透镜。
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公开(公告)号：US5568496A
公开(公告)日：1996-10-22
申请号：US351070
申请日：1994-11-30
CPC分类号： H01S3/2308 , H01S3/0064 , Y10S372/703
摘要： A broadband thermal optical limiter disposed between a laser oscillator and laser amplifier system for protecting optical components in the laser oscillator from damage due to amplified optical feedback from the laser amplifier system at all near ultraviolet, visible and near infrared wavelengths is disclosed. The thermal optical limiter comprises: a first lens for focusing the amplified optical feedback to a focal point on an optical axis; a flowing dye cell disposed near the focal point and being responsive to the focused amplified optical feedback for thermally defocusing and aberrating the focused amplified optical feedback into a plurality of rings about the optical axis; a second lens for passing only a small portion of the defocused amplified optical feedback; and a blocking aperture disposed around the second lens for blocking substantially all of the thermally defocused amplified optical feedback from the flowing dye cell and passing therethrough into the second lens only a small portion of the thermally defocused amplified optical feedback from the flowing dye cell.
摘要翻译： 公开了一种布置在激光振荡器和激光放大器系统之间的宽带热光学限制器，用于保护激光振荡器中的光学部件免受来自激光放大器系统在所有近紫外，可见光和近红外波长处的光反馈的损害。 热光学限制器包括：用于将放大的光学反馈聚焦到光轴上的焦点的第一透镜; 流动的染料单元，设置在焦点附近并且响应于聚焦放大的光学反馈，用于热聚焦并使聚焦的放大的光学反馈异像到围绕光轴的多个环中; 用于仅通过散焦放大光学反馈的一小部分的第二透镜; 以及设置在第二透镜周围的阻挡孔，用于阻挡来自流动的染料单元的基本上所有的热散焦的放大的光学反馈，并将其从第二透镜中流出，只有来自流动的染料单元的热散焦放大的光学反馈的一小部分。
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公开(公告)号：USH1522H
公开(公告)日：1996-04-02
申请号：US627393
申请日：1990-11-30
摘要： A system for protecting ships from attack by an infrared-seeking missile is provided which comprises decoying the missile by deploying an aerosol. In one embodiment, the aerosol merely scatters a modulated light beam. Another embodiment deploys particles that can undergo an exothermic photochemical reaction when initiated by an ultraviolet laser. The laser projects an image of the ship onto the aerosol and at the same time causes the particles to generate sufficient heat to attract the infrared-seeking missile away from the ship. This system presents an infrared-decoy target with a suitable infrared image of appropriate spatial scale to mislead a missile with imaging capability. The spectral content of the decoy's image resembles that of a blackbody 20.degree.-50 .degree. C. above ambient, and has a brightness and spatial extent equal to the largest ships, approximately 10 kw/steradian, in the 3-5 and 8-12 micrometer bands. The present invention is simple to use, rapidly deployed, and capable of presenting a decoy target that can last at least a minute or more.
摘要翻译： 提供了一种保护船舶免受红外线寻求导弹袭击的系统，其中包括通过部署气溶胶来摧毁导弹。 在一个实施例中，气溶胶仅散射调制的光束。 另一个实施方案是在由紫外线激光引发时，可以进行放热光化学反应的颗粒。 激光器将船舶的图像投射到气溶胶上，同时使颗粒产生足够的热量以吸引远离船舶的红外线导弹。 该系统提出了具有适当的空间尺度的合适的红外图像的红外诱饵目标，以误导具有成像能力的导弹。 诱饵图像的光谱含量类似于高于环境温度20°-50°C的黑体，其亮度和空间范围等于最大的船舶，大约10 kw / steradian，在3-5和8-12 微米带。 本发明使用简单，快速部署，并且能够呈现可以持续至少一分钟或更长时间的诱饵目标。
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5.发明授权Optically stimulated luminescence dosimetry using doped lithium fluoride crystals 有权使用掺杂的氟化锂晶体进行光学刺激发光剂量测定公开(公告)号：US09121948B2
公开(公告)日：2015-09-01
申请号：US14198912
申请日：2014-03-06
IPC分类号： G01T1/115
CPC分类号： G01T1/115
摘要： An optically stimulated luminescence (OSL) dosimeter system. An OSL reader configured to produce data indicative of a radiation exposure, one or more OSL dosimeters fabricated from a thermoluminescent material, a light stimulation source configured to stimulate the OSL dosimeter to produce luminescence emissions, and a light-detection system that measures the intensity of such luminescence emissions and converts the electrical signal to a binary string that can be processed by an appropriately programmed computer configured to analyze data from the reader and produce data indicative of an extent of radiation exposure. Dose information is obtained without requiring heating of the dosimeter. The dosimeter can be interrogated multiple times with minimal loss of dose information.
摘要翻译： 光学刺激发光（OSL）剂量计系统。 OSL读取器，其被配置为产生指示辐射暴露的数据，由热发光材料制成的一个或多个OSL剂量计，被配置为刺激OSL剂量计以产生发光发射的光刺激源，以及测量所述发光强度的光检测系统 这样的发光发射并将电信号转换成二进制串，该二进制串可以由被配置为分析来自读取器的数据并产生指示辐射程度的数据的适当编程的计算机来处理。 获得剂量信息而无需加热剂量计。 剂量计可以多次询问，剂量信息损失最小。
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公开(公告)号：US06211526B1
公开(公告)日：2001-04-03
申请号：US09163332
申请日：1998-09-30
申请人： Alan L. Huston , Brian L. Justus
发明人： Alan L. Huston , Brian L. Justus
IPC分类号： G03C516
CPC分类号： G09F3/0291 , B41M1/34 , B41M3/144 , C03C4/04 , C03C4/12 , G09F3/0294
摘要： Objects are marked for identification by a luminescent label including an optically stimulable glass having trapping centers and luminescence centers. The objects are marked by exposing the luminescent label to a radiation flux to populate metastable trapping centers in the luminescent label. The labels are read by exposing the label to a second radiation flux of optical radiation, to stimulate the release of trapped charges, causing the label to luminesce. The labels may also be read without previously populating these metastable trapping centers, by stimulating prompt luminescence through exposure to a flux of UV radiation. The label is made from an optically stimulable glass, where this glass has a glass matrix with defects, where these defects may be: (i) an alkaline earth sulfide, activator Sm ions, and an additional coactivator dopant (Eu or Ce); (ii) ZnS and activator ions (Cu, Pb, Mn, Ce, Eu, Ag, Au, or Fe); or (iii) activator ions without metal sulfides.
摘要翻译： 物体被标记为通过发光标签识别，包括具有捕获中心和发光中心的光学刺激玻璃。 通过将发光标记物暴露于辐射通量来标记物体，以填充发光标签中的亚稳态捕获中心。 通过将标签暴露于光辐射的第二辐射通量来读取标签，以刺激捕获的电荷的释放，导致标签发光。 也可以通过暴露于UV辐射通过刺激迅速的发光来读取标签，而无需预先填充这些亚稳态捕获中心。 该标签由光学刺激的玻璃制成，其中该玻璃具有缺陷的玻璃基质，其中这些缺陷可以是：（i）碱土金属硫化物，活化剂Sm离子和另外的共激活剂掺杂剂（Eu或Ce）; （ii）ZnS和活化剂离子（Cu，Pb，Mn，Ce，Eu，Ag，Au或Fe）; 或（iii）不含金属硫化物的活化剂离子。
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公开(公告)号：US5867329A
公开(公告)日：1999-02-02
申请号：US656535
申请日：1996-05-31
申请人： Brian L. Justus , Alan L. Huston
发明人： Brian L. Justus , Alan L. Huston
CPC分类号： G02B5/26
摘要： An optical filter that uses multiple reflections to provide spectral bandpass filtering of ultraviolet, visible and infrared radiation with a very high transmission of wavelengths within a selected passband coupled with exceptional off-band rejection. The reflection filter uses dielectric-coated spherical reflectors or mirrors manufactured with absorbing glass substrates. The multiple-pass feature of the reflection filter is achieved using a traditional long-path absorption cell such as a White Cell or Wilkes Cell. The light transmitted through the reflection filter is only that light which has undergone multiple reflections as the wavelengths of high mirror reflectivity reflect off the dielectric-coated substrates. All remaining light at wavelengths corresponding to high mirror transmission is attenuated by absorption in the mirror substrate. The degree of attenuation of light at wavelengths corresponding to high mirror transmission can be chosen simply by selecting an appropriate number of reflections in the multiple-pass reflection filter.
摘要翻译： 一种光学滤波器，其使用多个反射来提供紫外线，可见光和红外辐射的光谱带通滤波，其具有非常高的选定通带内的波长传输以及特殊的带外抑制。 反射滤光片使用由吸收玻璃基板制成的电介质涂覆的球形反射镜或反射镜。 反射滤光片的多通道特征使用传统的长路吸收单元如White Cell或Wilkes Cell实现。 透过反射滤光器的光仅仅是经过多次反射的光，因为高镜面反射率的波长反映在电介质涂覆的基片上。 对应于高反射镜透射的波长处的所有剩余光通过反射镜基板中的吸收而衰减。 可以简单地通过在多遍反射滤波器中选择适当数量的反射来选择对应于高反射镜传输的波长处的光的衰减程度。
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公开(公告)号：US06307212B1
公开(公告)日：2001-10-23
申请号：US09310681
申请日：1999-04-01
申请人： Alan L. Huston , Brian L. Justus
发明人： Alan L. Huston , Brian L. Justus
IPC分类号： G01T1115
CPC分类号： G01T1/06
摘要： Images are formed by exposing optically transparent, optically stimulable luminescent glasses including luminescent centers and trapping centers, to patterned, ionizing radiation. The images may be read immediately, using scintillation, or may be stored in the glasses for subsequent reading using optically stimulated detrapping of stored charges.
摘要翻译： 通过将包括发光中心和捕获中心的光学透明的光学刺激的发光玻璃暴露于图案化的电离辐射而形成图像。 可以使用闪烁立即读取图像，或者可以使用光学刺激的去除存储的电荷来存储在眼镜中用于随后的读取。
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9.发明申请Optically Stimulated Luminescence Dosimetry Using Doped Lithium Fluoride Crystals 有权使用掺杂的氟化锂晶体的光学刺激发光剂量学公开(公告)号：US20140264045A1
公开(公告)日：2014-09-18
申请号：US14198912
申请日：2014-03-06
IPC分类号： G01T1/115
CPC分类号： G01T1/115
摘要： An optically stimulated luminescence (OSL) dosimeter system. An OSL reader configured to produce data indicative of a radiation exposure, one or more OSL dosimeters fabricated from a thermoluminescent material, a light stimulation source configured to stimulate the OSL dosimeter to produce luminescence emissions, and a light-detection system that measures the intensity of such luminescence emissions and converts the electrical signal to a binary string that can be processed by an appropriately programmed computer configured to analyze data from the reader and produce data indicative of an extent of radiation exposure. Dose information is obtained without requiring heating of the dosimeter. The dosimeter can be interrogated multiple times with minimal loss of dose information.
摘要翻译： 光学刺激发光（OSL）剂量计系统。 OSL读取器，其被配置为产生指示辐射暴露的数据，由热发光材料制成的一个或多个OSL剂量计，被配置为刺激OSL剂量计以产生发光发射的光刺激源，以及测量所述发光强度的光检测系统 这样的发光发射并将电信号转换成二进制串，该二进制串可以由被配置为分析来自读取器的数据并产生指示辐射程度的数据的适当编程的计算机来处理。 获得剂量信息而无需加热剂量计。 剂量计可以多次询问，剂量信息损失最小。
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公开(公告)号：US5574286A
公开(公告)日：1996-11-12
申请号：US497660
申请日：1995-06-30
申请人： Alan L. Huston , Brian L. Justus
发明人： Alan L. Huston , Brian L. Justus
摘要： An apparatus for detecting a UV signal in the presence of background solar radiation comprises: a first filter system disposed along an optical axis being responsive to a light flux containing background solar radiation and a UV signal for passing UV light wavelengths below a selected UV wavelength and having a very sharp wavelength cutoff to substantially block wavelengths within a first selected wavelength band above the first selected UV wavelength; second and third filter systems serially disposed along the optical axis and tilted off the optical axis with respect to each other are selectively responsive to light from the first filter system for sequentially passing UV light wavelengths below the selected UV wavelength and substantially blocking visible light within the first selected wavelength band; a downconverter transforms the UV signal light from the third filter system to visible light in a second selected wavelength band; a dielectric coating disposed adjacent to the downconverter and between the third filter system and the downconverter for passing the UV signal light into the downconverter and for reflecting the visible light produced by the downconverter; a fourth filter system responsive to light from the downconverter for blocking all wavelengths greater than 700 nm that may have passed through the first, second and third filter systems and for passing therethrough the visible light in the second selected wavelength band; and a photomultiplier tube for detecting the visible light in the second selected wavelength band.
摘要翻译： 一种用于在背景太阳辐射的情况下检测UV信号的装置包括：沿光轴设置的第一滤光器系统，其响应于包含背景太阳辐射的光通量和用于使UV光波长低于所选UV波长的UV信号， 具有非常清晰的波长截止以基本上阻挡在高于第一选择的UV波长的第一选定波长带内的波长; 沿着光轴串联设置并相对于光轴倾斜的第二和第三滤光器系统选择性地响应于来自第一滤光器系统的光，以顺序地通过低于所选择的UV波长的紫外光波长并且基本上阻挡在所选择的UV波长内的可见光 第一选择波段; 下变频器将来自第三滤波器系统的UV信号光转换成第二选定波长带中的可见光; 设置在下变频器附近并且位于第三滤波器系统和下变频器之间的电介质涂层，用于将UV信号光传递到下变频器中并用于反射由下变频器产生的可见光; 第四滤波器系统响应于来自下变频器的光，用于阻挡可能已经通过第一，第二和第三滤波器系统的所有波长大于700nm，并且通过第二选定波长带中的可见光; 以及用于检测第二选定波长带中的可见光的光电倍增管。
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