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1. 发明授权

US4788428A Thermodynamics infrared imaging sensor 失效
标题翻译：热力学红外成像传感器
公开(公告)号：US4788428A
公开(公告)日：1988-11-29
申请号：US708136
申请日：1985-03-04
申请人： Travis W. Metcalf , Steven E. Moran
发明人： Travis W. Metcalf , Steven E. Moran
IPC分类号： G01J5/00 , G01J5/42 , G01J5/48 , H04N5/33 , H01L25/00 , G02B5/23
CPC分类号： H04N5/33 , G01J5/42 , G01J2005/0081 , G01J5/48
摘要： An infrared imaging system is presented wherein a visual image of a scene being viewed is obtained from the thermal energy radiated from said scene. The thermal energy radiated is focused onto a plurality of means for absorbing energy from the infrared radiation, specifically a two-dimensional array of gas cells with the front end being a rigid infrared transparent window, the sides being rigid, and the rear ends being flexible membranes. Infrared radiation absorbed by the cells causes changes in the thermodynamic pressure within each cell and consequent expansion of the flexible membrane on the rear end of each cylindrical cell. The deflection of these flexible membranes is monitored and measured by either a laser interferometer system or a solid state pressure sensing system. Measurement of this deflection represents the amount of infrared radiation received at each of the plurality of gas cells. The resultant intensity of the laser interference beam is monitored with a laser interferometer and a TV vidicon camera. This resultant intensity reflects the magnitude of deflection from the cells. The TV vidicon signal which monitors the resultant intensity is processed and transmitted for two-dimensional video presentation of the viewed scene.
摘要翻译：提出了一种红外成像系统，其中从所述场景辐射的热能获得正在观看的场景的视觉图像。辐射的热能集中在多个用于从红外辐射吸收能量的装置，特别是具有前端是刚性红外透明窗口的气体单元的二维阵列，侧面是刚性的，并且后端是柔性的膜。由细胞吸收的红外线辐射引起每个电池内的热力学压力的变化，从而使柔性膜在每个圆柱形电池的后端上膨胀。通过激光干涉仪系统或固态压力感测系统监测和测量这些柔性膜的偏转。该偏转的测量表示在多个气室中的每一个处接收的红外辐射的量。用激光干涉仪和电视摄像机监测激光干涉光束的合成强度。这个合成强度反映了细胞偏转的大小。对所观察场景的二维视频呈现进行处理和发送用于监视合成强度的TV视频信号。

2. 发明授权

US06495827B2 High-resolution staring infrared sensor with high dynamic range having a large field of regard 失效
标题翻译：具有高动态范围的高分辨率凝视红外传感器具有广泛的应用领域
公开(公告)号：US06495827B2
公开(公告)日：2002-12-17
申请号：US09758064
申请日：2001-01-10
申请人： Travis W. Metcalf , Charles S. Bendall , Rockie L. Ricks
发明人： Travis W. Metcalf , Charles S. Bendall , Rockie L. Ricks
IPC分类号： H01L3109
CPC分类号： G02B26/0833 , G02B13/146 , G02B13/16 , G02B19/0028 , G02B19/008 , G02B19/009
摘要： A low-cost high-resolution staring infrared imaging sensor for viewing a large Field Of Regard (FOR) while integrating over a small IFOV to detect small dim targets by subdividing the FOR into a plurality of internal optical paths without the use of mechanically-movable parts. Each of the plurality of internal optical paths may be further subdivided by a plurality of steerable micro-mirrors to reduce the IFOV and enhance long-range target acquisition capability. The sensor includes a primary lens for accepting infrared radiation from a Field Of Regard (FOR), a plurality of primary mirrors each disposed to reflect a portion of an FOR image along a different optical path, a secondary lens in each optical path to focus the FOR image portion onto a secondary mirror for reflection along a preselected direction, and a tertiary lens in each optical path to focus the FOR image portion onto an image detector array.
摘要翻译：一种低成本的高分辨率凝视红外成像传感器，用于观看大型的视野（FOR），同时通过小型IFOV进行集成，以通过将FOR细分为多个内部光学路径来检测小型暗淡物体，而不使用机械可移动的部分。多个内部光路中的每一个可以由多个可转向微镜进一步细分，以减少IFOV并增强远程目标获取能力。传感器包括用于接受来自视场（FOR）的红外辐射的主透镜，多个主镜，每个主镜设置成沿着不同光路反射FOR图像的一部分，每个光路中的次透镜，以聚焦用于沿着预选方向反射的次级反射镜上的图像部分，以及每个光路中的第三透镜，以将FOR图像部分聚焦到图像检测器阵列上。

3. 发明授权

US4164753A Dual pyroelectric vidicon infrared camera 失效
标题翻译：双重热电摄像机红外摄像机
公开(公告)号：US4164753A
公开(公告)日：1979-08-14
申请号：US922401
申请日：1978-07-06
申请人： Travis W. Metcalf
发明人： Travis W. Metcalf
IPC分类号： H04N5/33 , H01J31/49
CPC分类号： H04N5/33
摘要： Two pyroelectric vidicons are adapted to alternately receive infrared ene radiated from an object by means of a rotating half circle mirror and fixed mirror arrangement. The alternations of the infrared energy received between the two vidicons are synchronized by means of a synchronization and drive circuit adapted to receive frame sync pulses from the camera circuitry. By this arrangement, information is received by the camera 100% of the time.
摘要翻译：两个热电屏障适合于通过旋转的半圆镜和固定镜的布置交替地接收从物体辐射的红外能量。通过适合于从相机电路接收帧同步脉冲的同步和驱动电路，在两个视频之间接收的红外能量的交替被同步。通过这种布置，100％的时间由相机接收信息。

4. 发明授权

US4634870A Thermal image dynamic range expander 失效
标题翻译：热图像动态范围扩展器
公开(公告)号：US4634870A
公开(公告)日：1987-01-06
申请号：US730880
申请日：1985-05-06
申请人： Travis W. Metcalf
发明人： Travis W. Metcalf
IPC分类号： G01J5/42 , G01J9/02 , H04N5/33 , G01J5/38 , G01J5/62
CPC分类号： G01J5/42 , G01J9/02 , H04N5/33
摘要： A gas cell array absorbs infrared energy radiated by a viewed scene. A la interferometer has its resultant intensity changed by the cell's changing length. This is monitored by a vidicon tube that feeds the signal to a digitizer and onto a video display. The incident infrared radiation is chopped into quantized amounts of energy and memory units receive the digitized output of the vidicon tube. Subtractors receive vidicon tube signals simultaneously with quiescent reference levels data. The subtractors form a difference signal by subtracting the quiescent reference level signal from the immediate signal being passed to control threshold detectors. An extended dynamic range of 1,000:1 is accomplished for the preferred embodiment.
摘要翻译：气体电池阵列吸收观看场景辐射的红外能量。激光干涉仪的结果强度随着细胞变化的长度而改变。这是通过将信号馈送到数字转换器和视频显示器的视频管来监视的。将入射的红外辐射切成量化的能量，并且存储单元接收视频管的数字化输出。减法器与静态参考电平数据同时接收视频管信号。减法器通过从传递给控制阈值检测器的即时信号减去静态参考电平信号来形成差分信号。对于优选实施例，实现了1,000:1的扩展动态范围。

5. 发明授权

US4567609A Automatic character recognition system 失效
标题翻译：自动字符识别系统
公开(公告)号：US4567609A
公开(公告)日：1986-01-28
申请号：US479372
申请日：1983-03-28
申请人： Travis W. Metcalf
发明人： Travis W. Metcalf
IPC分类号： G06K9/32 , G06K9/38 , G06K9/82 , G06K9/34
CPC分类号： G06K9/38 , G06K9/32 , G06K9/82 , G06K2209/01
摘要： An apparatus and method for automatic character recognition is presented ch automatically locates and recognizes alphanumeric characters in a scene viewed by a raster-scan type of sensor. By this method the apparatus can search the entire scene and recognize up to seven alphanumeric characters in a bounded area of known size by the correlation technique in less than 1.5 seconds. The technique used first locates the bounded area and alphanumeric characters and then performs the recognition. Two different feature extraction methods are used to locate the characters in the scene. The recognition function is performed by correlation using an incoherent electrooptical processor.
摘要翻译：提供一种自动字符识别的装置和方法，其自动定位并识别由光栅扫描类型的传感器观看的场景中的字母数字字符。通过这种方法，该设备可以搜索整个场景，并通过相关技术在小于1.5秒内识别已知大小的有界区域中的多达七个字母数字字符。使用的技术首先定位有界区域和字母数字字符，然后执行识别。使用两种不同的特征提取方法来定位场景中的人物。识别功能通过使用非相干电光处理器的相关来执行。

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