Another class of inks we have are visible to human eyesight and become transparent in the IR.  We have these inks available as inks and loaded into felt tip pens.

These inks are:

BVIS-CIR: Black Visible - Clear IR

CVIS-CIR: Cyan (Blue) Visible - Clear IR

YVIS-CIR: Yellow Visible - Clear IR

MVIS-CIR: Magenta (Red) Visible - Clear IR

You can jump to this section to buy these inks and pens in our online store by clicking here.

We also have a BVIS-BIR Black Visible - Black IR ink and pen where the ink is black both in visible light and IR light.

BVIS-CIR: Black Visible - Clear IR.  Suggested filter where ink becomes transparent: 830nm longpass

 CVIS-CIR: Cyan (Blue) Visible - Clear IR.  Suggested filter where ink becomes transparent: 850nm or 1000nm Longpass

YVIS-CIR: Yellow Visible - Clear IR.  Suggested filter where ink becomes transparent: 600nm to 950nm longpass filter

MVIS-CIR: Magenta (Red) Visible - Clear IR.  Suggested filter where ink becomes transparent: 650nm or higher

BVIS-BIR: Black Visible - Black IR.  Note: Ink is black in visible light and IR light.