Patent ID: 11872833
Assignee: XEROX CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 7:
8. A system for creating an infrared effect that survives copying, comprising:
a metameric pair of pattern inks, wherein a first pattern ink reflects higher in an infrared spectrum as compared to a second pattern ink among the metameric pair of pattern inks, and the second pattern ink is less reflective than the first pattern ink;
wherein for the second pattern ink that is less reflective than the first pattern ink, a pattern is configured for the second pattern ink that is larger and less scattered than an existing design for a pattern ink; and
wherein a color of media is used as a common color for the metameric pair of pattern inks to create an infrared effect from the metameric pair of pattern inks that survives copying on the media.