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1. 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。

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

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。

4. 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.

5. 发明授权

US5563409A Crosstalk measurement system and technique 失效
标题翻译：串扰测量系统和技术
公开(公告)号：US5563409A
公开(公告)日：1996-10-08
申请号：US361243
申请日：1994-12-21
申请人： Khoa V. Dang , Christopher L. Kauffman , Zenon I. Derzko
发明人： Khoa V. Dang , Christopher L. Kauffman , Zenon I. Derzko
IPC分类号： G01R29/26 , G01R31/308 , G01D18/00
CPC分类号： G01R29/26 , G01R31/308
摘要： An automated test system and method for infrared focal plane detector arr which utilize X-Y positioning of a focused laser spot scanning individual detector array elements Detector element outputs are processed for the entire focal plane array resulting in crosstalk measurement.
摘要翻译：用于红外焦平面检测器阵列的自动测试系统和方法，其利用聚焦激光点扫描单独检测器阵列元件的X-Y定位检测器元件输出被处理用于整个焦平面阵列，导致串扰测量。

6. 发明授权

US06876483B1 Optical viewing apparatus 有权
标题翻译：光学观察装置
公开(公告)号：US06876483B1
公开(公告)日：2005-04-05
申请号：US10448206
申请日：2003-05-30
申请人： Christopher B. Svec , Christopher L. Kauffman , Hao C. Tran
发明人： Christopher B. Svec , Christopher L. Kauffman , Hao C. Tran
IPC分类号： G02B23/10 , G02B26/08 , G02B26/00 , G02B6/42
CPC分类号： G02B26/0841 , G02B23/10
摘要： Apparatus which directs light rays from a distant target area scene to a plurality of wavelength detection systems without wavelength degradation. A reflective afocal telescope directs the light rays from the scene to a MEMS mirror array which redirects the rays to selected ones of the detection systems. The MEMS mirror array has individually controllable mirror elements which are driven to predetermined angular orientations to accomplish the light ray redirection. Outputs from the detection systems may be provide to a computer for analysis and/or viewing.
摘要翻译：将来自远处目标区域场景的光线引导到多个波长检测系统而不发生波长劣化的装置。反射无焦点望远镜将来自场景的光线引导到MEMS反射镜阵列，其将射线重定向到选定的检测系统。 MEMS反射镜阵列具有单独可控的反射镜元件，其被驱动到预定的角度取向以实现光线重定向。来自检测系统的输出可以提供给计算机用于分析和/或查看。

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