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公开(公告)号：US10297629B2
公开(公告)日：2019-05-21
申请号：US15701116
申请日：2017-09-11
摘要： An image sensor may include an array of pixels. Pixels in the array may include a photodiode that converts incident light into electrical charge and a charge storage region for storing the electrical charge before it is read out from the pixel. Pixels in the array may include a microlens formed over the photodiode that directs light onto the photodiode. Pixels in the array may include an additional array of microlenses between the microlens and the photodiode. The additional array of microlenses may direct light away from the charge storage region to prevent charge stored at the charge storage region from being affected by light that is not incident upon the photodiode. The image sensor may be a backside illuminated image sensor that operates in a global shutter mode.
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公开(公告)号：US10204946B1
公开(公告)日：2019-02-12
申请号：US15676664
申请日：2017-08-14
IPC分类号： H01L31/0232 , H01L27/146
摘要： Color filters may affect imaging performance attributes such as low light sensitivity, color accuracy, and modulation transfer function (MTF). In an image pixel array, these factors are influenced by both the spectral absorption and pattern of the color filter elements. Different portions of an image sensor may prioritize different imaging performance attributes. Accordingly, in certain applications it may be beneficial for color filter characteristics to vary across an image sensor. Different color filters of the same color may have different structures to optimize imaging performance across the image sensor.
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公开(公告)号：US09847359B2
公开(公告)日：2017-12-19
申请号：US15139505
申请日：2016-04-27
IPC分类号： H01L27/146
CPC分类号： H01L27/14603 , H01L27/14632 , H01L27/14636 , H01L27/1464 , H01L27/14643 , H01L27/14689
摘要： A backside illuminated image sensor with an array of pixels formed in a substrate is provided. To improve surface planarity, bond pads formed at the periphery of the array of pixels may be recessed into a back surface of the substrate. The bond pads may be recessed into a semiconductor layer of the substrate, may be recessed into a window in the semiconductor layer, or may be recessed in a passivation layer and covered with non-conductive material such as resin. In order to further improve surface planarity, a window may be formed in the semiconductor layer at the periphery of the array of pixels, or scribe region, over alignment structures. By providing an image sensor with improved surface planarity, device yield and time-to-market may be improved, and window framing defects and microlens/color filter non-uniformity may be reduced.
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公开(公告)号：US09497366B1
公开(公告)日：2016-11-15
申请号：US14723147
申请日：2015-05-27
IPC分类号： H04N5/225 , H04N9/04 , H01L27/146
CPC分类号： H01L27/14623 , H01L27/14603 , H01L27/14621 , H01L27/14627 , H01L27/14685 , H04N5/2254 , H04N9/045
摘要： An imaging system may include an image sensor having an array of pixels. The image sensor may include an array of microlenses formed over a substrate and an array of color filter elements interposed between the microlenses and the substrate. Dielectric wall structures may be interposed between the color filter elements. Light shield structures may be formed within or on the dielectric wall structures and may be used to reduce optical crosstalk between adjacent pixels. The light shield structures may be formed on opposing sides or corners of the color filter elements and may partially or fully extend along the height of the color filter elements. In some arrangements, the light shield structures may each have a vertical portion that contacts a side surface of an adjacent color filter element and a horizontal portion that contacts a lower surface of an adjacent color filter element.
摘要翻译： 成像系统可以包括具有像素阵列的图像传感器。 图像传感器可以包括形成在衬底上的微透镜阵列和插入在微透镜和衬底之间的滤色器元件的阵列。 电介质壁结构可以插在滤色器元件之间。 光屏蔽结构可以形成在电介质壁结构内或上，并且可以用于减少相邻像素之间的光学串扰。 遮光结构可以形成在滤色器元件的相对侧或角上，并且可以沿着滤色器元件的高度部分或全部地延伸。 在一些布置中，遮光结构可以各自具有接触相邻滤色器元件的侧表面的垂直部分和接触相邻滤色器元件的下表面的水平部分。
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5.发明授权Image sensor system for detection and information processing based on user preferences 有权基于用户偏好的图像传感器系统，用于检测和信息处理公开(公告)号：US09456132B2
公开(公告)日：2016-09-27
申请号：US14577759
申请日：2014-12-19
CPC分类号： H04N5/23229 , G06K9/00825 , G06K9/46 , H04N5/23293 , H04N5/335 , H04N9/045
摘要： A system may include an image sensor having a pixel array that receives light in an environment. The light received at the pixel array may be transmitted by an external device that encodes information using the wavelength, spatial patterning, temporal patterning, or other characteristics of the light. In response to receiving the light, the pixel array may generate electrical signals that are processed to decode the information in the light. The system may compare the decoded information to user preferences to determine if the information is relevant to a user. In response to determining that the information is relevant to the user, the system may display the information to the user, transmit a pulse including user preference information, or change an operating state of the image sensor.
摘要翻译： 系统可以包括具有在环境中接收光的像素阵列的图像传感器。 在像素阵列处接收的光可以通过使用波长，空间图案，时间图案化或光的其它特征对信息进行编码的外部设备进行传输。 响应于接收到光，像素阵列可以产生被处理以解码光中的信息的电信号。 系统可以将解码的信息与用户偏好进行比较，以确定信息是否与用户相关。 响应于确定信息与用户相关，系统可以向用户显示信息，发送包括用户偏好信息的脉冲或改变图像传感器的操作状态。
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公开(公告)号：US09438868B2
公开(公告)日：2016-09-06
申请号：US14180237
申请日：2014-02-13
发明人： Ulrich Boettiger
CPC分类号： H04N9/09 , H04N5/2258 , H04N5/23222 , H04N5/23241 , H04N5/2351 , H04N5/343 , H04N7/188
摘要： An imaging device may include a primary imaging sensor and a secondary imaging sensor. The secondary imaging sensor may monitor a scene being imaged by the imaging device for trigger criteria such as sudden movement, changes in the intensity of ambient light, and the presence of a particular object or person. Upon detection of relevant trigger criteria, the imaging device may activate the primary imaging sensor and capture one or more images of the scene with the primary imaging sensor. Operational parameters of the primary imaging sensor including framerate and exposure settings may be based on data from the secondary imaging sensor. The secondary imaging sensor may have a lower power consumption than the primary imaging sensor such that monitoring the scene with the secondary imaging sensor and only activating the primary imaging sensor upon detection of the relevant trigger criteria enables an efficient and adaptive imaging system.
摘要翻译： 成像装置可以包括主成像传感器和次级成像传感器。 次级成像传感器可以监视由成像装置成像的场景，用于触发标准，例如突然移动，环境光的强度变化以及特定对象或人的存在。 在检测到相关的触发条件时，成像装置可以激活主要成像传感器并且利用主要成像传感器捕获场景的一个或多个图像。 包括帧率和曝光设置的主要成像传感器的操作参数可以基于来自次级成像传感器的数据。 次级成像传感器可以具有比主要成像传感器更低的功率消耗，使得利用次级成像传感器监视场景并且仅在检测到相关触发标准时激活主要成像传感器才能实现有效和自适应的成像系统。
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公开(公告)号：US20160182820A1
公开(公告)日：2016-06-23
申请号：US14577759
申请日：2014-12-19
CPC分类号： H04N5/23229 , G06K9/00825 , G06K9/46 , H04N5/23293 , H04N5/335 , H04N9/045
摘要： A system may include an image sensor having a pixel array that receives light in an environment. The light received at the pixel array may be transmitted by an external device that encodes information using the wavelength, spatial patterning, temporal patterning, or other characteristics of the light. In response to receiving the light, the pixel array may generate electrical signals that are processed to decode the information in the light. The system may compare the decoded information to user preferences to determine if the information is relevant to a user. In response to determining that the information is relevant to the user, the system may display the information to the user, transmit a pulse including user preference information, or change an operating state of the image sensor.
摘要翻译： 系统可以包括具有在环境中接收光的像素阵列的图像传感器。 在像素阵列处接收的光可以通过使用波长，空间图案，时间图案化或光的其它特征对信息进行编码的外部设备进行传输。 响应于接收到光，像素阵列可以产生被处理以解码光中的信息的电信号。 系统可以将解码的信息与用户偏好进行比较，以确定信息是否与用户相关。 响应于确定信息与用户相关，系统可以向用户显示信息，发送包括用户偏好信息的脉冲或改变图像传感器的操作状态。
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公开(公告)号：US20150229889A1
公开(公告)日：2015-08-13
申请号：US14180237
申请日：2014-02-13
发明人： Ulrich Boettiger
CPC分类号： H04N9/09 , H04N5/2258 , H04N5/23222 , H04N5/23241 , H04N5/2351 , H04N5/343 , H04N7/188
摘要： An imaging device may include a primary imaging sensor and a secondary imaging sensor. The secondary imaging sensor may monitor a scene being imaged by the imaging device for trigger criteria such as sudden movement, changes in the intensity of ambient light, and the presence of a particular object or person. Upon detection of relevant trigger criteria, the imaging device may activate the primary imaging sensor and capture one or more images of the scene with the primary imaging sensor. Operational parameters of the primary imaging sensor including framerate and exposure settings may be based on data from the secondary imaging sensor. The secondary imaging sensor may have a lower power consumption than the primary imaging sensor such that monitoring the scene with the secondary imaging sensor and only activating the primary imaging sensor upon detection of the relevant trigger criteria enables an efficient and adaptive imaging system.
摘要翻译： 成像装置可以包括主成像传感器和次级成像传感器。 次级成像传感器可以监视由成像装置成像的场景，用于触发标准，例如突然移动，环境光的强度变化以及特定对象或人的存在。 在检测到相关的触发条件时，成像装置可以激活主要成像传感器并且利用主要成像传感器捕获场景的一个或多个图像。 包括帧率和曝光设置的主要成像传感器的操作参数可以基于来自次级成像传感器的数据。 次级成像传感器可以具有比主要成像传感器更低的功率消耗，使得利用次级成像传感器监视场景并且仅在检测到相关触发标准时激活主要成像传感器才能实现有效和自适应的成像系统。
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公开(公告)号：US11942498B2
公开(公告)日：2024-03-26
申请号：US17651916
申请日：2022-02-22
IPC分类号： H01L31/0232 , H01L27/146 , H01L31/107 , H04N25/50 , H04N25/702 , H04N25/75
CPC分类号： H01L27/14627 , H01L27/14685 , H01L31/107 , H04N25/50 , H04N25/702 , H04N25/75
摘要： An imaging device may include a plurality of single-photon avalanche diode (SPAD) pixels. The SPAD pixels may be overlapped by square toroidal microlenses to direct light incident on the pixels onto photosensitive regions of the pixels. The square toroidal microlenses may be formed as first and second sets of microlenses aligned with every other SPAD pixel and may allow the square toroidal microlenses to be formed without gaps between adjacent lenses. Additionally or alternatively, a central portion of each square toroidal microlenses may be filled by a fill-in microlens. Together, the square toroidal microlenses and the fill-in microlenses may form convex microlenses over each SPAD pixel. The fill-in microlenses may be formed from material having a higher index of refraction than material that forms the square toroidal microlenses.
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公开(公告)号：US20190081098A1
公开(公告)日：2019-03-14
申请号：US15701116
申请日：2017-09-11
摘要： An image sensor may include an array of pixels. Pixels in the array may include a photodiode that converts incident light into electrical charge and a charge storage region for storing the electrical charge before it is read out from the pixel. Pixels in the array may include a microlens formed over the photodiode that directs light onto the photodiode. Pixels in the array may include an additional array of microlenses between the microlens and the photodiode. The additional array of microlenses may direct light away from the charge storage region to prevent charge stored at the charge storage region from being affected by light that is not incident upon the photodiode. The image sensor may be a backside illuminated image sensor that operates in a global shutter mode.
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