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1. 发明申请

US20060202120A1 Photoconductive bolometer infrared detector 有权
标题翻译：光电测辐射热计红外探测器
公开(公告)号：US20060202120A1
公开(公告)日：2006-09-14
申请号：US11079592
申请日：2005-03-14
申请人： Christopher Kauffman , Sung-Shik Yoo , Timothy Beystrum
发明人： Christopher Kauffman , Sung-Shik Yoo , Timothy Beystrum
IPC分类号： G01J5/00
CPC分类号： G01J5/20
摘要： A photoconductive bolometer infrared detector using a detector material that has a resistance changed due to photo-excitation and thermal-excitation from an incident radiation in the infrared range. The resistance changes caused by photo-excitation and the thermal excitation are additive for this detector material. The detector material is suspended over a substrate by a gap of one quarter wavelength of the incident radiation, such that the thermal absorption of the incident radiation can be enhanced. Preferably, the detector material is lead selenide that has a thermal coefficient of resistance as high as 3.45%° C.−1, which is about 60% higher than that of vanadium oxide that has been widely used as the detector material in the conventional microbolometers. This detector structure allows dual band uncooled or moderately cooled operation. In the case of the use of PbSe as the detector material, largely enhanced MWIR operation is enabled over a standard uncooled micro-bolometer tuned to the LWIR, and high temperature dual band MWIR and LWIR operation is enabled as compared to quantum well or HgCdTe detectors that must be cooled to cryogenic temperatures.
摘要翻译：使用检测器材料的感光辐射热计红外检测器，其具有由红外范围内的入射辐射引起的光激发和热激发而改变的电阻。由光激发和热激发引起的电阻变化对于该检测器材料是添加剂。检测器材料通过入射辐射的四分之一波长的间隙悬置在衬底上，使得可以增强入射辐射的热吸收。优选地，检测器材料是硒化铅，其具有高达3.45％℃的高的电阻系数。其比已广泛用作氧化钒的电阻高约60％常规微电热计中的检测器材料。该检测器结构允许双频带非冷却或中等冷却操作。在使用PbSe作为检测器材料的情况下，可以通过调谐到LWIR的标准非制冷微量辐照计进行大幅增强的MWIR操作，并且与量子阱或HgCdTe检测器相比，实现了高温双波段MWIR和LWIR操作必须将其冷却至低温。

2. 发明授权

US07941003B2 Efficient calculation of ensquared energy in an imaging system 有权
标题翻译：高效计算成像系统中的能量
公开(公告)号：US07941003B2
公开(公告)日：2011-05-10
申请号：US11681398
申请日：2007-03-02
申请人： Phillip Richard Minarik , Frederick Ray Seiter , Dawn Lenore Bohlin , Sung-shik Yoo , Jesse James Kramer
发明人： Phillip Richard Minarik , Frederick Ray Seiter , Dawn Lenore Bohlin , Sung-shik Yoo , Jesse James Kramer
IPC分类号： G06K9/32
CPC分类号： G02B7/36
摘要： Systems and methods are provided for determining an ensquared energy associated with an imaging system. In one embodiment of the invention, a focal plane array captures an image of a target comprising a plurality of point sources, each point source being associated with a pixel within the focal plane array. An image analysis component estimates an ensquared energy value for the imaging system from respective intensity values of the associated pixels and known relative positions of the plurality of point sources.
摘要翻译：提供了用于确定与成像系统相关联的能量的能量的系统和方法。在本发明的一个实施例中，焦平面阵列捕获包括多个点源的目标的图像，每个点源与焦平面阵列内的像素相关联。图像分析组件根据相关像素的相应强度值和多个点源的已知相对位置估计成像系统的被容纳的能量值。

3. 发明授权

US07474351B2 Solder reflux method for holding cryogenically aligned parts 有权
标题翻译：用于保持低温对准部件的焊料回流方法
公开(公告)号：US07474351B2
公开(公告)日：2009-01-06
申请号：US10967053
申请日：2004-10-15
申请人： Philip R. Minarik , Robin H. Pruss , Sung-Shik Yoo
发明人： Philip R. Minarik , Robin H. Pruss , Sung-Shik Yoo
IPC分类号： H04N5/225 , G02B13/16 , H01L25/00
CPC分类号： H01L27/14685 , H01L23/445 , H01L27/14618 , H01L27/14625 , H01L2924/0002 , H04N5/2253 , H04N5/2254 , H01L2924/00
摘要： A method of aligning a lens assembly to a focal plane array is provided. The method may comprise the steps of providing an upper cold shield which holds the lens assembly, providing a lower cold shield for holding the focal plane array, mounting the upper cold shield onto the lower cold shield, lowering the temperature of the upper and lower cold shield to a cryogenic level, translating the upper cold shield with respect to the lower cold shield until the lens assembly is aligned to the focal plane array while the upper and lower cold shields are at the cryogenic temperature levels, and fixing the upper cold shield to the lower cold shield while the upper and lower cold shields are maintained at cryogenic levels.
摘要翻译：提供了一种将透镜组件对准焦平面阵列的方法。该方法可以包括以下步骤：提供保持透镜组件的上部冷屏蔽，提供用于保持焦平面阵列的下部冷屏蔽，将上部冷屏蔽件安装在下部冷屏蔽件上，降低上部和下部冷藏的温度屏蔽到低温级，将上部冷屏相对于下部冷屏平移，直到透镜组件与焦平面阵列对准，同时上部和下部冷屏处于低温温度水平，并将上部冷屏固定到较低的冷盾，而上下冷盾保持在低温水平。

4. 发明授权

US10612974B2 Detection circuit and method to mitigate 1/F noise in single detectors and in image sensors 有权
公开(公告)号：US10612974B2
公开(公告)日：2020-04-07
申请号：US15901451
申请日：2018-02-21
申请人： Sung-Shik Yoo , Christopher L. Kauffman , Phillip R. Minarik
发明人： Sung-Shik Yoo , Christopher L. Kauffman , Phillip R. Minarik
IPC分类号： G01J1/46 , G01J1/44
CPC分类号： G01J1/46 , G01J1/44
摘要： A circuit includes an input capacitor that stores charge based on a current received from a photodetector during a bias phase of the photodetector. The stored charge on the input capacitor is sampled during the sampling phase to determine an amount of light captured by the photodetector. A bias controller supplies a pulsed-bias voltage to the photodetector to generate the current from the photodetector. The bias controller controls the current to a current level below a predetermined current threshold via the pulsed-bias voltage before biasing of the detector and subsequent sampling of the stored charge on the input capacitor is initiated to mitigate 1/F noise in the photodetector.

5. 发明授权

US07592593B2 Multi-band focal plane array 有权
标题翻译：多波段焦平面阵列
公开(公告)号：US07592593B2
公开(公告)日：2009-09-22
申请号：US11493121
申请日：2006-07-26
申请人： Christopher Lee Kauffman , Gerald Pray Griffith , Ronald B. Jones , Sung-Shik Yoo , Michael A. Davis
发明人： Christopher Lee Kauffman , Gerald Pray Griffith , Ronald B. Jones , Sung-Shik Yoo , Michael A. Davis
IPC分类号： H01L25/00
CPC分类号： H01L27/14649 , G01J3/36
摘要： A multi-band focal plane array architecture operative to detect multiple spectral image. The multi-band focal plane array architecture has an integrated readout circuit, a plurality of first detectors integrated in the readout circuit and a plurality of second detectors deposited on the readout circuit. Preferably, the first detectors are operative to detect visible signals and the second detectors are operative to detect infrared signals. The first and second detectors are arranged in a checkerboard pattern, in alternate rows or columns, or at least partially overlapped with each other to realize simultaneous detection in two different wavelength bands. The architecture may also have an additional integrated readout circuit flip-chip bonded to the integrated readout circuit. By forming a plurality of third detectors on the additional integrated readout circuit, a tri-band focal plane array may be realized. In one embodiment, a dual-band focal plane array architecture by forming two arrays of detectors on two individual integrated readout circuit and flip-chip bonding these two readout circuits.
摘要翻译：一种可以检测多个光谱图像的多波段焦平面阵列结构。多频带焦平面阵列结构具有集成读出电路，集成在读出电路中的多个第一检测器和沉积在读出电路上的多个第二检测器。优选地，第一检测器可操作以检测可见信号，并且第二检测器可操作以检测红外信号。第一和第二检测器被布置成棋盘图案，以交替行或列排列，或至少部分地彼此重叠，以实现两个不同波长带中的同时检测。该架构还可以具有结合到集成读出电路的额外的集成读出电路倒装芯片。通过在附加集成读出电路上形成多个第三检测器，可以实现三波段焦平面阵列。在一个实施例中，双波段焦平面阵列架构通过在两个单独的集成读出电路上形成两个检测器阵列并将这两个读出电路进行倒装芯片接合。

6. 发明申请

US20080212830A1 Efficient Calculation of Ensquared Energy in an Imaging System 有权
标题翻译：成像系统中能量的有效计算
公开(公告)号：US20080212830A1
公开(公告)日：2008-09-04
申请号：US11681398
申请日：2007-03-02
申请人： Phillip Richard Minarik , Frederick Ray Seiter , Dawn Lenore Bohlin , Sung-shik Yoo , Jesse James Kramer
发明人： Phillip Richard Minarik , Frederick Ray Seiter , Dawn Lenore Bohlin , Sung-shik Yoo , Jesse James Kramer
IPC分类号： G06K9/00
CPC分类号： G02B7/36
摘要： Systems and methods are provided for determining an ensquared energy associated with an imaging system. In one embodiment of the invention, a focal plane array captures an image of a target comprising a plurality of point sources, each point source being associated with a pixel within the focal plane array. An image analysis component estimates an ensquared energy value for the imaging system from respective intensity values of the associated pixels and known relative positions of the plurality of point sources.
摘要翻译：提供了用于确定与成像系统相关联的能量的能量的系统和方法。在本发明的一个实施例中，焦平面阵列捕获包括多个点源的目标的图像，每个点源与焦平面阵列内的像素相关联。图像分析组件根据相关像素的相应强度值和多个点源的已知相对位置估计成像系统的被容纳的能量值。

7. 发明申请

US20060082681A1 Solder reflux method for holding cryogenically aligned parts 有权
公开(公告)号：US20060082681A1
公开(公告)日：2006-04-20
申请号：US10967053
申请日：2004-10-15
申请人： Philip Minarik , Robin Pruss , Sung-Shik Yoo
发明人： Philip Minarik , Robin Pruss , Sung-Shik Yoo
IPC分类号： H04N5/225 , H01L25/00
CPC分类号： H01L27/14685 , H01L23/445 , H01L27/14618 , H01L27/14625 , H01L2924/0002 , H04N5/2253 , H04N5/2254 , H01L2924/00
摘要： A method of aligning a lens assembly to a focal plane array is provided. The method may comprise the steps of providing an upper cold shield which holds the lens assembly, providing a lower cold shield for holding the focal plane array, mounting the upper cold shield onto the lower cold shield, lowering the temperature of the upper and lower cold shield to a cryogenic level, translating the upper cold shield with respect to the lower cold shield until the lens assembly is aligned to the focal plane array while the upper and lower cold shields are at the cryogenic temperature levels, and fixing the upper cold shield to the lower cold shield while the upper and lower cold shields are maintained at cryogenic levels.

8. 发明申请

US20050078208A1 Cold shield for cryogenic camera 有权
标题翻译：用于低温摄像机的冷盾
公开(公告)号：US20050078208A1
公开(公告)日：2005-04-14
申请号：US10683073
申请日：2003-10-10
申请人： Philip Minarik , Sung-Shik Yoo
发明人： Philip Minarik , Sung-Shik Yoo
IPC分类号： H04N5/225
CPC分类号： H04N5/2253 , H04N5/2254
摘要： A cold shield of a cryogenic camera. The cold shield reflects external thermal radiation away from the cryogenic camera, so as to shield the cryogenic camera in a cryogenic temperature such that no internal thermal radiation will be generated. The cryogenic camera has a lens assembly and a focal plane array. The cold shield has an upper cold shield member for holding the lens assembly and a lower cold shield member for holding the focal plane array. The upper cold shield member fits over the lower cold shield member by contact friction, such that limited translation and rotation of the lower cold shield member relative to the upper cold shield member are allowable. Therefore, the cold shield allows a fine adjustment for aligning the lens assembly to the focal plane array.
摘要翻译：低温摄像机的冷盾。冷屏反映远离低温相机的外部热辐射，以便在低温温度下屏蔽低温相机，使得不会产生内部热辐射。低温相机具有透镜组件和焦平面阵列。冷屏具有用于保持透镜组件的上部冷屏部件和用于保持焦平面阵列的下部冷屏部件。上部冷屏蔽构件通过接触摩擦装配在下部冷屏蔽构件上，使得下部冷屏蔽构件相对于上部冷屏蔽构件的有限平移和旋转是允许的。因此，冷屏允许微调以将透镜组件对准焦平面阵列。

9. 发明申请

US20090173883A1 MULTI-BAND FOCAL PLANE ARRAY 有权
标题翻译：多带对焦平面阵列
公开(公告)号：US20090173883A1
公开(公告)日：2009-07-09
申请号：US11493121
申请日：2006-07-26
申请人： Christopher Lee Kauffman , Gerald Pray Griffith , Ronald B. Jones , Sung-Shik Yoo , Michael A. Davis
发明人： Christopher Lee Kauffman , Gerald Pray Griffith , Ronald B. Jones , Sung-Shik Yoo , Michael A. Davis
IPC分类号： H01L27/14 , H01L27/00
CPC分类号： H01L27/14649 , G01J3/36
摘要： A multi-band focal plane array architecture operative to detect multiple spectral image. The multi-band focal plane array architecture has an integrated readout circuit, a plurality of first detectors integrated in the readout circuit and a plurality of second detectors deposited on the readout circuit. Preferably, the first detectors are operative to detect visible signals and the second detectors are operative to detect infrared signals. The first and second detectors are arranged in a checkerboard pattern, in alternate rows or columns, or at least partially overlapped with each other to realize simultaneous detection in two different wavelength bands. The architecture may also have an additional integrated readout circuit flip-chip bonded to the integrated readout circuit. By forming a plurality of third detectors on the additional integrated readout circuit, a tri-band focal plane array may be realized. In one embodiment, a dual-band focal plane array architecture by forming two arrays of detectors on two individual integrated readout circuit and flip-chip bonding these two readout circuits.
摘要翻译：一种可以检测多个光谱图像的多波段焦平面阵列结构。多频带焦平面阵列结构具有集成读出电路，集成在读出电路中的多个第一检测器和沉积在读出电路上的多个第二检测器。优选地，第一检测器可操作以检测可见信号，并且第二检测器可操作以检测红外信号。第一和第二检测器被布置成棋盘图案，以交替行或列排列，或至少部分地彼此重叠，以实现两个不同波长带中的同时检测。该架构还可以具有结合到集成读出电路的额外的集成读出电路倒装芯片。通过在附加集成读出电路上形成多个第三检测器，可以实现三波段焦平面阵列。在一个实施例中，双波段焦平面阵列架构通过在两个单独的集成读出电路上形成两个检测器阵列并将这两个读出电路进行倒装芯片接合。

10. 发明申请

US20080179520A1 Direct-view focal plane array 审中-公开
标题翻译：直视焦平面阵列
公开(公告)号：US20080179520A1
公开(公告)日：2008-07-31
申请号：US11699839
申请日：2007-01-30
申请人： Christopher Lee Kauffman , Sung-Shik Yoo
发明人： Christopher Lee Kauffman , Sung-Shik Yoo
IPC分类号： H01L25/00 , G01J5/00
CPC分类号： G02B23/12 , H01L27/14643 , H04N5/33 , H04N5/3651
摘要： A direct-view focal plane array (FPA) having a detector layer, an amplification layer, a non-uniformity correction layer and a display layer. A direct path from the detector to the display element in each pixel may be established via a configurable digitally set analog circuit that controls gain and level for non-uniformity correction. The detector layer is operative to detect an infrared image with a raw image pixel response x and convert the infrared image into an electrical signal. The electrical signal is then fed into the amplification layer for amplification and the non-uniformity layer for offset and gain correction. An offset correction coefficient b and a gain correction coefficient m are inputted to the non-uniformity layer, to transform the raw image pixel response x into a corrected pixel response y, which prevents the true scene content from bein masked by the fixed pattern.
摘要翻译：具有检测器层，放大层，不均匀性校正层和显示层的直视焦平面阵列（FPA）。可以经由可配置的数字设置的模拟电路来建立从每个像素中的检测器到显示元件的直接路径，该模拟电路控制用于非均匀性校正的增益和电平。检测器层可操作以用原始图像像素响应x检测红外图像，并将红外图像转换成电信号。然后将电信号馈送到用于放大的放大层和用于偏移和增益校正的不均匀层。将偏移校正系数b和增益校正系数m输入到不均匀层，将原始图像像素响应x变换为校正像素响应y，从而防止真实场景内容被固定图案掩蔽。

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