Official websites use .mil
Secure .mil websites use HTTPS
EIELSON AIR FORCE BASE, Alaska--Pictured, the Army Combat Uniform, with material identical to the Airman Battle Uniform, shows the difference optical brighteners make under ultra-violet lighting. Laundry detergents with additives known as "optical brighteners" make the material of the ABUs more detectable by night vision equipment and make the ABU more visible in a low-light environment of any kind. Optical brighteners are chemicals that absorb the ultraviolet and violet region of colors in a fabric. They trick the eye into seeing a brighter shade and reflect more light. (file photo)
CAMERA
N/A
LENS
APERTURE
SHUTTERSPEED
ISO
No camera details available.
This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.