LED lamp for radiating UV light, has wristwatch-type housing for accommodating battery and LEDs that emit UV light, in which UV light has frequency band suitable for determining presence of UV fibers or ink on e.g. tickets

摘要

The LED lamp has a wristwatch-type housing for accommodating at least three or more LEDs that emit UV light. A battery is arranged in the housing to provide power to the LEDs. The irradiated UV light has a frequency band suitable for determining presence of UV fibers or ink on tickets, credit cards, bank checks and other similar materials.