Black Light Bulbs
Black lights are seen everywhere. You have probably noticed them during Halloween, at amusement parks and even your own bedroom as a teenager. Black lights resemble standard fluorescent lamps or incandescent light bulbs, but looks can be deceiving. The conventional black light design is simply a fluorescent lamp that generates light by passing electricity through a tube filled with inert gas and a small amount of mercury. Anything that contains phosphors will then glow under a black light. Phosphors are contained in many everyday items. Natural phosphors occur in our teeth, fingernails, and man-made materials. Phosphors appear in television screens and many paints, fabric and plastics. Most fluorescent colored things, as well as all glow-in-the-dark products also contain phospors. And black lights aren’t just for posters and state fairs. View our list below for its other uses:
Practical Uses For Black Lights:
• Appraisers use them to detect counterfeits of antiques. Many of today’s paints have phosphors that will glow under a black light, while most older paints do not.
• Machinery leaks can be detected with black lights.
• Black lights can be used to identify counterfeit money. Many bills include an invisible fluorescent strip in larger bills that only shows up under a black light.
• Forensic scientists use them to isolate fingerprints