Peter L. P. Dillon

[3] KRL had already begun research related to charge coupled devices (CCDs), which were invented in the late 1960s at Bell Labs.

[2] Dillon then invented an alternative CFA pattern, with a green checkerboard, and blue color values on each line.

[10] He used this pattern for the color CCD sensor (shown in the below figure) in the single chip camera he developed[2] In order to develop a color filter array fabrication process which was compatible with semiconductor fabrication processes, Dillon collaborated with his Kodak colleague, KRL Physical Chemist Albert Brault.

[3] Brault invented a process using dye sublimation through photoresist windows onto a receiving polymer layer that was coated on top of the pixels of a CCD image sensor during the wafer fabrication stage.

[14] Dillon is responsible for another important video camera technology, which extends the range of operation at low light levels.

4,016,597,[15] Dillon and his KRL colleague Jim DePalma recognized that integral color image sensors are sensitive to infrared (IR) wavelengths.

[16] They demonstrated that, by automatically removing the IR blocking filter at very low light levels, the sensitivity could be significantly increased to produce acceptable monochrome images.

[3][18] In 2022, they received the IEEE Masaru Ibuka Consumer Electronics Award for “Contributions to the development of image sensors with integrated color filter arrays for digital video and still cameras".

Dillon, c. 1970s
First color CCD image sensor
Color image interpolation (Demosaicing)
Dillon (left) and Albert Brault (right) holding their Emmy statues