专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09927295B2 Detection circuit and method to mitigate 1/F noise in single detectors and in image sensors 有权
公开(公告)号：US09927295B2
公开(公告)日：2018-03-27
申请号：US14843492
申请日：2015-09-02
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.

2. 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.

3. 发明授权

US07262413B2 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：US07262413B2
公开(公告)日：2007-08-28
申请号：US11079592
申请日：2005-03-14
申请人： Christopher L. Kauffman , Sung-Shik Yoo , Timothy R. Beystrum
发明人： Christopher L. Kauffman , Sung-Shik Yoo , Timothy R. 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。

4. 发明授权

US07253895B2 Image detection and identification device 有权
标题翻译：图像检测识别装置
公开(公告)号：US07253895B2
公开(公告)日：2007-08-07
申请号：US11103304
申请日：2005-04-11
申请人： Christopher L. Kauffman , Sung-Shik Yoo , Curtis Harkrider , Philip Minarik
发明人： Christopher L. Kauffman , Sung-Shik Yoo , Curtis Harkrider , Philip Minarik
IPC分类号： G01J3/28
CPC分类号： G01J3/2823 , G01J3/02 , G01J3/0256 , G01J3/36
摘要： An imaging device is provided which may include a plurality of imaging lenses. Each imaging lens may be placed adjacent to a dispersive element. The imaging lenses and dispersive element(s) may be placed adjacent to a focal plane array to allow light from a light emitting event traveling through the imaging lenses to be simultaneously received by the focal plane array. One of the optical channels provides continuous broadband imagery without interfering with the operation of the dispersive optical channels. No moving parts are required in this small compact system, and no reconfiguration during operation is necessary to enable any of the functions, they are all simultaneous. Information related to the light received by the focal plane array may be transmitted to a processor for processing to determine whether the light emitting event is of interest and to determine an event type. Broadband imagery provided may be used for situational awareness, targeting, and surveillance.
摘要翻译：提供了可以包括多个成像透镜的成像装置。每个成像透镜可以放置在与分散元件相邻的位置。成像透镜和分散元件可以放置在焦平面阵列附近，以允许来自穿过成像透镜的发光事件的光被焦平面阵列同时接收。光通道中的一个提供连续的宽带图像，而不干扰色散光通道的操作。在这种小型紧凑型系统中不需要移动部件，并且在操作期间不需要重新配置以使得任何功能都可以同时进行。与焦平面阵列接收的光有关的信息可以被发送到处理器进行处理以确定发光事件是否是感兴趣的并且确定事件类型。提供的宽带图像可用于情境意识，目标和监视。

5. 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。

6. 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。

7. 发明授权

US07332720B2 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：US07332720B2
公开(公告)日：2008-02-19
申请号：US10683073
申请日：2003-10-10
申请人： Philip R. Minarik , Sung-Shik Yoo
发明人： Philip R. Minarik , Sung-Shik Yoo
IPC分类号： G01J5/02
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。

8. 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。

9. 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.

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式