Filter architecture for a photosensitive chip

US5604362A · kind A · utility

Assignee

• Xerox Corporation · US

Inventors

• Josef E. Jedlicka · Rochester, US
• Brian T. Ormond · Webster, US
• Debra S. Vent · Webster, US

Key dates

• Filing date: Feb 20, 1996
• Grant date: Feb 18, 1997
• Expiry date: Feb 20, 2016

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F77/331

Abstract

In a photosensitive chip suitable for full-color imaging, separate photosites on the chip correspond to different primary colors in an original image. Each primary-color photosite is filtered with a polyimide doped to a particular primary color. The red-filtering layer and the blue-filtering layer are left on the non-photosensitive portions of the main surface of the chip, and together serve as a non-reflective area which prevents stray reflections from the chip. The chip is further provided with a base layer of infrared-filtering polyimide.