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1. 发明申请

US20140078366A1 IMAGING SYSTEMS WITH IMAGE PIXELS HAVING VARYING LIGHT COLLECTING AREAS 有权
标题翻译：具有变化的光收集区域的图像像素的成像系统
公开(公告)号：US20140078366A1
公开(公告)日：2014-03-20
申请号：US13952290
申请日：2013-07-26
申请人： Aptina Imaging Corporation
发明人： Alexandre G. Dokoutchaev , Richard Holscher , Jeffrey Mackey , Gershon Rosenblum , Gennadiy Agranov
IPC分类号： H04N5/335
CPC分类号： H04N5/335 , H01L27/14627 , H01L27/14667 , H04N5/2254 , H04N5/35563 , H04N5/3696 , H04N2209/045
摘要： An image sensor may have an array of image sensor pixels having varying light collecting areas. The light collecting area of each image pixel may vary with respect to other image pixels due to varied microlens sizes and varied color filter element sizes throughout the array. The light collecting area may vary within unit pixel cells and the variability of the light collecting areas of pixels within each pixel cell may depend on the location of the pixel cell in the pixel array. Each unit pixel cell may include at least one clear pixel having a light collecting area that is smaller than the light collecting areas of other single color pixels in the unit pixel cell.
摘要翻译：图像传感器可以具有具有变化的光收集区域的图像传感器像素阵列。每个图像像素的光收集区域可以由于在整个阵列中变化的微透镜尺寸和变化的滤色器元件尺寸而相对于其他图像像素而变化。光收集区域可以在单位像素单元内变化，并且每个像素单元内的像素的聚光区域的可变性可以取决于像素单元在像素阵列中的位置。每个单位像素单元可以包括至少一个透明像素，其具有小于单位像素单元中的其它单色像素的光收集区域的光收集区域。

2. 发明申请

US20140077323A1 IMAGING SYSTEMS WITH BACKSIDE ILLUMINATED NEAR INFRARED IMAGING PIXELS 有权
标题翻译：具有背面照射近红外成像像素的成像系统
公开(公告)号：US20140077323A1
公开(公告)日：2014-03-20
申请号：US13954844
申请日：2013-07-30
申请人： Aptina Imaging Corporation
发明人： Sergey Velichko , Gennadiy Agranov
IPC分类号： H01L27/146
CPC分类号： H01L27/1464 , H01L27/14627 , H01L27/14629 , H01L27/1463 , H01L27/14683 , H01L27/14689
摘要： An imaging system may include an image sensor having backside illuminated near infrared image sensor pixels. Each pixel may be formed in a graded epitaxial substrate layer such as a graded n-type epitaxial layer. Each pixel may be separated from an adjacent pixel by an isolation trench formed in the graded epitaxial layer. The isolation trench may be a continuous isolation trench or may be formed from a combined front side isolation trench and backside isolation trench that are separated by a wall structure. A buried front side reflector may be provided that reflects light such as infrared light that has passed through a pixel back into the pixel, thereby effectively doubling the silicon absorption depth of the pixels.
摘要翻译：成像系统可以包括具有背面照射的近红外图像传感器像素的图像传感器。每个像素可以形成在渐变的外延衬底层中，例如渐变的n型外延层。每个像素可以通过形成在渐变外延层中的隔离沟槽与相邻像素分离。隔离沟槽可以是连续的隔离沟槽，或者可以由由壁结构隔开的组合的前侧隔离沟槽和背侧隔离沟槽形成。可以提供将已经通过像素的红外光等的光反射回像素的掩埋的前侧反射器，从而有效地使像素的硅吸收深度加倍。

3. 发明申请

US20150144790A1 VIDEO AND 3D TIME-OF-FLIGHT IMAGE SENSORS 有权
标题翻译：视频和3D飞行时间图像传感器
公开(公告)号：US20150144790A1
公开(公告)日：2015-05-28
申请号：US14092611
申请日：2013-11-27
申请人： Aptina Imaging Corporation
发明人： Sergey Velichko , Gennadiy Agranov
IPC分类号： G01B11/24 , G01S17/08 , H01L27/148
CPC分类号： G01S17/08 , G01S7/4816 , G01S7/4863 , G01S17/89 , H01L27/14875
摘要： Electronic devices may include time-of-flight (ToF) image pixels. Each ToF pixel may include a photodiode, a first capacitor coupled to the photodiode via a first transfer gate, a second capacitor coupled to the photodiode via a second transfer gate, and a third capacitor coupled to the photodiode via a third transfer gate. The first transfer gate may be turned on for a given duration to store a first charge in the first capacitor. The second transfer gate may be turned on for the given duration to store a second charge in the second capacitor. The third transfer gate may be turned on for a duration that is longer than the given duration to store a third charge in the third capacitor. Depth information may be computed based on the first, second, and third stored charges and a corresponding pixel constant.
摘要翻译：电子设备可以包括飞行时间（ToF）图像像素。每个ToF像素可以包括光电二极管，经由第一传输栅极耦合到光电二极管的第一电容器，经由第二传输栅极耦合到光电二极管的第二电容器，以及经由第三传输栅极耦合到光电二极管的第三电容器。第一传输门可以被打开一段给定的持续时间以将第一电荷存储在第一电容器中。第二传输门可以在给定的持续时间内导通以将第二电荷存储在第二电容器中。第三传输门可以接通持续时间长于给定的持续时间以将第三电荷存储在第三电容器中。可以基于第一，第二和第三存储的电荷和相应的像素常数来计算深度信息。

4. 发明申请

US20130292548A1 IMAGE SENSORS WITH PHOTOELECTRIC FILMS 有权
标题翻译：具有光电膜的图像传感器
公开(公告)号：US20130292548A1
公开(公告)日：2013-11-07
申请号：US13860157
申请日：2013-04-10
申请人： APTINA IMAGING CORPORATION
发明人： Gennadiy Agranov , Jaroslav Hynecek
IPC分类号： H01L27/146
CPC分类号： H01L27/14643 , H01L27/146 , H01L27/307
摘要： An image sensor with an organic photoelectric film for converting light into charge may be provided. The image sensor may include an array of image sensor pixels. Each image sensor pixel may include a charge-integrating pinned diode that collects photo-generated charge from the photoelectric film during an integration period. An anode electrode may be coupled to an n+ doped charge injection region in the charge-integrating pinned diode and may be used to convey the photo-generated charge from the photoelectric film to the charge-integrating pinned diode. Upon completion of a charge integration cycle, a first transfer transistor gate may be pulsed to move the charge from the charge-integrating pinned diode to a charge-storage pinned diode. The charge may be transferred from the charge-storage pinned diode to a floating diffusion node for readout by pulsing a gate of a second charge transfer transistor.
摘要翻译：可以提供具有用于将光转换成电荷的有机光电膜的图像传感器。图像传感器可以包括图像传感器像素的阵列。每个图像传感器像素可以包括在积分时段期间从光电膜收集光生电荷的电荷积分二极管。阳极可以与电荷积分二极管中的n +掺杂电荷注入区耦合，并可用于将来自光电膜的光电荷传送到电荷积分二极管。在完成电荷积分周期之后，可以将第一传输晶体管栅极脉冲以将电荷从电荷积分二极管移动到电荷存储固定二极管。电荷可以从电荷存储固定二极管转移到浮动扩散节点，以通过脉冲第二电荷转移晶体管的栅极来读出。

5. 发明申请

US20140078349A1 IMAGING SYSTEMS WITH CROSSTALK CALIBRATION PIXELS 有权
标题翻译：具有CROSSTALK校准像素的成像系统
公开(公告)号：US20140078349A1
公开(公告)日：2014-03-20
申请号：US13955765
申请日：2013-07-31
申请人： Aptina Imaging Corporation
发明人： Sergey Velichko , Gennadiy Agranov
IPC分类号： H04N5/357
CPC分类号： H04N5/357 , H04N5/359
摘要： An image sensor may include crosstalk calibration pixels. Crosstalk calibration pixels may include exposed pixels and shielded pixels. Exposed pixels may be partially or completely surrounded by shielded pixels. Calibration pixels may be formed in a checkerboard pattern of alternating shielded and exposed pixels or a double checkerboard pattern of alternating pairs of shielded and exposed pixels. Exposed pixels may have apertures of various size in a shielding layer that shields the shielded pixels from light. Signals generated by exposed and shielded pixels may be used in assessing pixel optical and electrical crosstalk and indirectly deducing the spectral composition of incoming light for particular locations in a pixel array. Information about local crosstalk across the array may be used in coordinate dependent color correction matrices, white balance algorithms, luminance and chroma noise cancellation, edge sharpening, assessment of pixel implantation depth, and measuring a modulation transfer function.
摘要翻译：图像传感器可以包括串扰校准像素。串扰校准像素可以包括曝光的像素和屏蔽像素。曝光的像素可以被屏蔽的像素部分地或完全地包围。校准像素可以以交替屏蔽和曝光的像素的棋盘图案或交替的屏蔽和曝光像素对的双棋盘图案形成。曝光的像素可以在遮蔽屏蔽层的屏蔽层中具有各种尺寸的孔，以遮蔽屏蔽像素。由曝光和屏蔽像素产生的信号可用于评估像素光学和电串扰，并间接地推导出像素阵列中特定位置的入射光的光谱组成。关于阵列上的局部串扰的信息可以用于坐标依赖的颜色校正矩阵，白平衡算法，亮度和色度噪声消除，边缘锐化，像素注入深度的评估以及测量调制传递函数。

6. 发明申请

US20130222603A1 IMAGING SYSTEMS FOR INFRARED AND VISIBLE IMAGING 审中-公开
标题翻译：用于红外和可见成像的成像系统
公开(公告)号：US20130222603A1
公开(公告)日：2013-08-29
申请号：US13777776
申请日：2013-02-26
申请人： Aptina Imaging Corporation
发明人： Gennadiy Agranov , Dongqing Cao , Richard Holscher
IPC分类号： H04N5/33
CPC分类号： H04N5/33 , H04N5/332 , H04N9/045
摘要： An imaging device capable of simultaneously capturing visible and infrared images may be provided with an array of photosensitive elements, an array of filter elements arranged over the array of photosensitive elements, and a dual bandpass filter arranged over the array of filter elements. The dual bandpass filter may have a first passband in the visible spectral range and a second passband in the infrared spectral range. The array of filter elements may include color filter elements and infrared filter elements. During color image capturing operations, each color pixel receives visible and near infrared light through the dual bandpass filter and an associated color filter element. The infrared portion of the pixel signal from the color pixels may be removed using signals from the near infrared pixels. During infrared image capturing operations, each near infrared pixel receives infrared light through the dual bandpass filter and an associated infrared filter element.
摘要翻译：能够同时捕获可视和红外图像的成像装置可以设置有光敏元件阵列，布置在光敏元件阵列上的滤光器阵列阵列，以及布置在过滤器元件阵列上的双带通滤光器。双带通滤波器可以具有可见光谱范围内的第一通带和红外光谱范围中的第二通带。过滤器元件的阵列可以包括滤色器元件和红外滤光器元件。在彩色图像捕获操作期间，每个彩色像素通过双带通滤波器和相关联的滤色器元件接收可见光和近红外光。可以使用来自近红外像素的信号来去除来自彩色像素的像素信号的红外部分。在红外图像捕获操作期间，每个近红外像素通过双带通滤波器和相关联的红外滤光器元件接收红外光。

7. 发明申请

US20150009375A1 IMAGING SYSTEMS WITH DYNAMIC SHUTTER OPERATION 有权
标题翻译：具有动态快门操作的成像系统
公开(公告)号：US20150009375A1
公开(公告)日：2015-01-08
申请号：US14012403
申请日：2013-08-28
申请人： Aptina Imaging Corporation
发明人： Gennadiy Agranov , Sergey Velichko , John W. Ladd
IPC分类号： H04N5/355
CPC分类号： H04N5/35536 , H04N5/35554 , H04N5/35572 , H04N5/35581
摘要： An imaging system may include an image sensor having an array of image pixels. Each image pixel may include an electronic shutter for controlling when a photosensor in the image pixel accumulates charge. The electronic shutter may be operable in an open state during which charge is allowed to accumulate on the photosensor and a closed state during which charge is drained from the photosensor. The electronic shutter may be cycled through multiple open and closed states during an image frame capture. At the end of each open state, the charge that has been acquired on the photosensor may be transferred from the photosensor to a pixel memory element. By breaking up the total exposure time for a pixel during an image frame into shorter, non-continuous periods of exposure time, dynamic scenery image artifacts may be minimized while maintaining the desired total exposure time.
摘要翻译：成像系统可以包括具有图像像素阵列的图像传感器。每个图像像素可以包括用于控制图像像素中的光电传感器何时累积电荷的电子快门。电子快门可以在打开状态下操作，在打开状态期间，电荷被允许积聚在光传感器上，并且关闭状态，在该状态期间，电荷从光传感器排出。电子快门可以在图像帧捕获期间循环多个打开和关闭状态。在每个打开状态的结束时，已经在光传感器上获取的电荷可以从光传感器传送到像素存储元件。通过将图像帧中的像素的总曝光时间分解为更短的非连续的曝光时间段，可以在保持期望的总曝光时间的同时最小化动态风景图像伪像。

8. 发明申请

US20140197301A1 GLOBAL SHUTTER IMAGE SENSORS WITH LIGHT GUIDE AND LIGHT SHIELD STRUCTURES 审中-公开
标题翻译：全景快门图像传感器与光导和光泽结构
公开(公告)号：US20140197301A1
公开(公告)日：2014-07-17
申请号：US14157492
申请日：2014-01-16
申请人： APTINA IMAGING CORPORATION
发明人： Sergey Velichko , Gennadiy Agranov , Victor Lenchenkov
IPC分类号： H01L27/146
CPC分类号： H01L27/14625 , H01L27/14609 , H01L27/14643
摘要： An image sensor operable in global shutter mode may include an array of image pixels. Each image pixel may include a photodiode for detecting incoming light and a separate storage diode for temporarily storing charge. To maximize the efficiency of the image pixel array, image pixels may include light guide structures and light shield structures. The light guide structures may be used to funnel light away from the storage node and into the photodiode, while the light shield structures may be formed over storage nodes to block light from entering the storage nodes. The light guide structures may fill cone-shaped cavities in a dielectric layer, or the light guide structures may form sidewalls having a ring-shaped horizontal cross section. Metal interconnect structures in the dielectric layer may be arranged in concentric annular structures to form a near-field diffractive element that funnels light towards the appropriate photodiode.
摘要翻译：可在全局快门模式下操作的图像传感器可以包括图像像素阵列。每个图像像素可以包括用于检测入射光的光电二极管和用于临时存储电荷的单独的存储二极管。为了最大化图像像素阵列的效率，图像像素可以包括导光结构和光屏蔽结构。光导结构可以用于将光从存储节点漏入光电二极管，同时可以在存储节点上形成遮光结构以阻止光进入存储节点。光导结构可以填充电介质层中的锥形空腔，或者导光结构可形成具有环形水平横截面的侧壁。电介质层中的金属互连结构可以被布置成同心的环形结构，以形成朝向合适的光电二极管发光的近场衍射元件。

9. 发明申请

US20130222552A1 IMAGING PIXELS WITH DEPTH SENSING CAPABILITIES 有权
标题翻译：具有深度感测能力的成像像素
公开(公告)号：US20130222552A1
公开(公告)日：2013-08-29
申请号：US13728086
申请日：2012-12-27
申请人： Aptina Imaging Corporation
发明人： Gennadiy Agranov , Dongqing Cao , Hirofumi Komori
IPC分类号： H04N13/02
CPC分类号： H04N13/204 , H04N5/378 , H04N13/218 , H04N13/286
摘要： An imager may include depth sensing pixels that receive and convert incident light into image signals. The imager may have an associated imaging lens that focuses the incident light onto the imager. Each of the depth sensing pixels may include a microlens that focuses incident light received from the imaging lens through a color filter onto first and second photosensitive regions of a substrate. The first and second photosensitive regions may provide different and asymmetrical angular responses to incident light. Depth information for each depth sensing pixel may be determined based on the difference between output signals of the first and second photosensitive regions of that depth sensing pixel. Color information for each depth sensing pixel may be determined from a summation of output signals of the first and second photosensitive regions.
摘要翻译：成像器可以包括接收并将入射光转换成图像信号的深度感测像素。成像器可以具有将入射光聚焦到成像器上的相关联的成像透镜。每个深度感测像素可以包括将从成像透镜接收的入射光通过滤色器聚焦到基板的第一和第二光敏区上的微透镜。第一和第二光敏区域可以对入射光提供不同的和不对称的角度响应。可以基于该深度感测像素的第一和第二感光区域的输出信号之差来确定每个深度感测像素的深度信息。可以根据第一和第二感光区域的输出信号的和来确定每个深度感测像素的颜色信息。

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