Kodak Truesense color filter improves on standard Bayer pattern

Jan. 1, 2010
Conventional color image sensors are typically designed using the "Bayer Pattern"—an arrangement of red, green, and blue (RGB) pixels, invented by Eastman Kodak (Rochester, NY) scientist Bryce Bayer in 1976, in which half of the pixels on the sensor detect green light, with the other pixels evenly split to detect red and blue light.

Conventional color image sensors are typically designed using the "Bayer Pattern"—an arrangement of red, green, and blue (RGB) pixels, invented by Eastman Kodak (Rochester, NY) scientist Bryce Bayer in 1976, in which half of the pixels on the sensor detect green light, with the other pixels evenly split to detect red and blue light. Software then reconstructs a full RGB image at each pixel after final exposure of the single image sensor. But at the recent Vision 2009 trade show in early November in Stuttgart, Germany, Kodak demonstrated the first integration of the Kodak Truesense color-filter pattern on a CCD image sensor.

The Truesense color-filter pattern builds on the standard Bayer pattern by adding panchromatic or "clear" color pixels (sensitive to all visible wavelengths) to the RGB pixels on a sensor. Because no visible-light wavelengths are excluded, a black-and-white image is detected with high sensitivity. This panchromatic information is then combined with the RGB color information and a final image is generated with increased brightness. This technology increases the overall sensitivity of the sensor, enabling an increase in photographic speed for improved low-light, high-speed imaging. Contact Kodak Image Sensor Solutions at [email protected].

About the Author

John Wallace | Senior Technical Editor (1998-2022)

John Wallace was with Laser Focus World for nearly 25 years, retiring in late June 2022. He obtained a bachelor's degree in mechanical engineering and physics at Rutgers University and a master's in optical engineering at the University of Rochester. Before becoming an editor, John worked as an engineer at RCA, Exxon, Eastman Kodak, and GCA Corporation.

Sponsored Recommendations

Request a free Micro 3D Printed sample part

April 11, 2024
The best way to understand the part quality we can achieve is by seeing it first-hand. Request a free 3D printed high-precision sample part.

How to Tune Servo Systems: The Basics

April 10, 2024
Learn how to tune a servo system using frequency-based tools to meet system specifications by watching our webinar!

Motion Scan and Data Collection Methods for Electro-Optic System Testing

April 10, 2024
Learn how different scanning patterns and approaches can be used in measuring an electro-optic sensor performance, by reading our whitepaper here!

How Precision Motion Systems are Shaping the Future of Semiconductor Manufacturing

March 28, 2024
This article highlights the pivotal role precision motion systems play in supporting the latest semiconductor manufacturing trends.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!