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SmugMug > keywords > fluorescence > With the addition of ultraviolet light, colored strips can be seen inside $10, $20, and $50 bills.
SmugMug > keywords > fluorescence > Amber in normal light.
SmugMug > keywords > fluorescence > Amber seems to absorb a lot of UV. It becomes nearly opaque when exposed.
SmugMug > keywords > fluorescence > A glowing plastic toy in normal light.
SmugMug > keywords > fluorescence > A glowing plastic toy exposed to ultraviolet light.
SmugMug > keywords > fluorescence > A plastic card in normal light.
SmugMug > keywords > fluorescence > When exposed to UV, the hidden "V" becomes visible.
SmugMug > keywords > fluorescence > A plastic card in normal light.
SmugMug > keywords > fluorescence > When exposed to UV, the hidden "VISA"s become visible.
With the addition of ultraviolet light, colored strips can be seen inside $10, $20, and $50 bills.
> With the addition of ultraviolet light, colored strips can be seen inside $10, $20, and $50 bills.
With the addition of ultraviolet light, colored strips can be seen inside $10, $20, and $50 bills.
Photo by: Kevin Collins • see photo in gallery
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