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SamsungGranted patentCameras & imagingInterest 4/10

Samsung patents camera sensor design to improve color accuracy at edges

Samsung has been granted a patent for a camera sensor that uses a specific arrangement of lenses and filters to capture light. The design includes a second lens system that straightens out light hitting the sensor at an angle, ensuring it hits the color filters more directly.

Why it mattersThis design aims to reduce color distortion in photos taken at the corners of a frame, which is a common issue in high-resolution smartphone cameras.

In the filing’s own words

A spectral image sensor includes: a first lens system; an infrared blocking filter; a second lens system configured to adjust a chief ray angle (CRA) of oblique incident light to reduce an incident angle of the oblique incident light with respect to a spectral filter; the spectral filter; and an image sensor. The image sensor may be configured to detect light passing through the first lens system, the infrared blocking filter, the second lens system, and the spectral filter.

What exactly they claim (claim 1)

1. A spectral image sensor comprising: a first lens system comprising a plurality of lenses; an infrared blocking filter; a second lens system configured to adjust a chief ray angle (CRA) of oblique incident light to refract light passing through the second lens system to reduce a divergence of the light, and to reduce an incident angle of the oblique incident light with respect to a spectral filter, the second lens system contacting the infrared blocking filter; the spectral filter; and an image sensor; wherein the image sensor is configured to detect light passing through the first lens system, the infrared blocking filter, the second lens system, and the spectral filter, wherein the spectral filter is between the second lens system and the image sensor, and the spectral filter contacts the image sensor, and wherein the first lens system, the infrared blocking filter, the second lens system, the spectral filter, and the image sensor are provided in that order.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Spectral image sensors and electronic apparatuses including the same
Patent number
US12736403B2
Application number
18091916
Filed
Dec 30, 2022
Granted
Sep 15, 2026
Inventors
1
Claims
21

Classified under

G01J 3/2823 Physics & computingG01J 3/0208 Physics & computingG01J 3/0291 Physics & computingG01J 2003/2826 Physics & computingG01N 21/25 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.