CI Defence Passive IR Identification Patches are Velcro backed, 25mm square patches of near IR reflective material. The patches can be applied to uniforms and vehicles as a passive means of Combat Identification.When illuminated with a near IR source eg. laser or searchlight, a suitably equipped observer (night vision or other IR sensitive device) co-located with the light source will see a very strong reflection (glint) from the patch. Observers located more than 5 degrees off axis of the light source will not see any effect other than general illumination.

The device has an acceptance angle of 150 degrees.No power source is required. An adhesive backed Velcro swatch is supplied for the mounting of the patch to the required location.

Maximum angle of return approx. 10 degrees. Observer outside this cone will not see any return.
Ideal viewing point co-located with light source.

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