公开(公告)号：US20210026164A1

公开(公告)日：2021-01-28

申请号：US16715090

申请日：2019-12-16

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Orit SKORKA ,  Brian Anthony VAARTSTRA ,  Radu ISPASOIU

IPC: G02F1/01 ,  G02F1/137 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1339 ,  G02B3/00 ,  H04N5/225

Abstract: Imaging systems may include tunable polarization filters. A tunable polarization filter may be integrated directly into an image sensor package. For example, the tunable polarization filter may serve as cover glass for the image sensor package. Tunable polarization package glass may be incorporated into image sensor packages that have air gaps between the image sensor and the cover glass or that have transparent adhesive between the image sensor and the cover glass. The tunable polarization layer may be controlled at a global level, at a sub-array level, or at a pixel level. In some cases, the tunable polarization layer may be a tunable polarization filter. In this example, the direction of the polarization filter is tuned. In other cases, the tunable polarization layer may be a tunable polarization rotator. In this example, the tunable polarization layer selectively rotates the polarization of light that passes through the tunable polarization layer.

公开(公告)号：US20240314417A1

公开(公告)日：2024-09-19

申请号：US18183106

申请日：2023-03-13

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Radu ISPASOIU ,  Swarnal BORTHAKUR ,  Byounghee LEE

IPC: H04N23/55 ,  H04N25/13

CPC classification number: H04N23/55 ,  H04N25/13

Abstract: Image sensor pixels, imaging systems, and methods for constructing image sensor pixels. The image sensor pixel includes a high-light photodetector, a plurality of low-light photodetectors, and a spectral router. The plurality of low-light photodetectors is positioned around the high-light photodetector. The spectral router is positioned above the high-light photodetector and the plurality of low-light photodetectors. The spectral router is configured to route a portion of light received at the spectral router to one or more of the plurality of low-light photodetectors.

公开(公告)号：US20250150728A1

公开(公告)日：2025-05-08

申请号：US18500361

申请日：2023-11-02

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Orit SKORKA ,  Barry VANHOFF ,  Radu ISPASOIU ,  Grady ANDERSON ,  Anthony Richard HUGGETT

IPC: H04N25/589 ,  H04N23/73 ,  H04N23/741 ,  H04N25/59 ,  H04N25/621 ,  H04N25/78

Abstract: Image sensors, imaging systems, and methods for eliminating blooming artifacts in high dynamic range imaging. The image sensor includes a pixel array and a controller. The controller is configured to detect that a first pixel signal is at or below a barrier value. The first pixel signal is generated during a first exposure. The controller is also configured to compare neighboring pixel signals to the barrier value. The controller is further configured to determine a first image value for the center pixel based on a second pixel signal when at least one of the neighboring pixel signals is above the barrier value. The second pixel signal is generated during a second exposure that is shorter than the first exposure. The controller is also configured to set the first image value to the first pixel signal when each of the neighboring pixel signals is at or below the barrier value.

公开(公告)号：US20240348938A1

公开(公告)日：2024-10-17

申请号：US18607172

申请日：2024-03-15

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Orit SKORKA ,  Barry VANHOFF ,  Radu ISPASOIU ,  Vladimir KOROBOV

IPC: H04N23/75 ,  H04N23/72 ,  H04N23/73 ,  H04N23/741 ,  H04N25/587

CPC classification number: H04N23/75 ,  H04N23/72 ,  H04N23/73 ,  H04N23/741 ,  H04N25/587

Abstract: Image sensors, imaging systems, and methods for high dynamic range imaging. The image sensor includes image sensor pixels, a light filter, and a controller. The light filter is configured to attenuate transmission of incident light to the image sensor pixels. The controller is configured to set the light filter to a high-transmission state and capture a first image generated by the image sensor pixels during a first exposure. The controller is also configured to set the light filter to a low-transmission state and capture a second image generated by the image sensor pixels during a second exposure. The controller is further configured to combine the first and second images to generate a high dynamic range image. The controller is also configured to adjust an attenuation of the light filter for a next iteration of the low-transmission state based on pixel signals generated during the second exposure.

公开(公告)号：US20220232156A1

公开(公告)日：2022-07-21

申请号：US17643714

申请日：2021-12-10

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Orit SKORKA ,  Radu ISPASOIU ,  Brian Anthony VAARTSTRA

IPC: H04N5/235 ,  G02F1/1335

Abstract: An imaging system may include an electronic shutter. The electronic shutter may be positioned between an image sensor and a lens module or may be integrated as a package cover for the image sensor. The electronic shutter may selectively attenuate incident light that passes to the image sensor. To increase the dynamic range of the imaging system, the electronic shutter may have a first transparency while a first image is captured by the image sensor and a second, different transparency while a second image is captured by the image sensor. The first and second images are subsequently combined to form a single high dynamic range image. The electronic shutter may be controlled at a global level, at a sub-array level, or at a pixel level.