When does a laser pointer get powerful enough to be dangerous?

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer There is no specific threshold between a powerful laser beam, a potentially hazardous one, and a clearly dangerous beam. The following are some guidelines. Bright Li ...

Learn More About Lasers Pointers Knowledge

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer What is a laser? Laser stands for Light Amplification by Stimulated Emission of Radiation. A laser is a device that projects a highly concentrated narrow beam of l ...

Beam Diameter and Beam Divergence

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer Beam diameter and beam divergences are two of the most important technical specifications to consider when choosing a laser. Obviously beam ...

Laser Light Show

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer In the classroom, it is a teacher’s job to bring students into the light — figuratively and literally. Light is a mandatory resource for ne ...

The Best Cat Toys For Your Kitty

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer Like people and dogs, cats benefit from keeping fit and active. Exercise is essential for your cat’s mental and physical health. It relieves ...

Class IIIB Laser Pointers

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer Class 3B visible-beam lasers are medium powered, from 5 to 499 milliwatts. A Class 3B laser can cause eye injury. So, please pay attention to safety when use it. A ...

Yellow Laser Pointers

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer The yellow laser pointer are expensive because they are made with high quality components built using cutting edge laser technology. A very high power diode is need ...

Shopping Guide on Blue Laser Pointers

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer A blue laser is a laser that emits electromagnetic radiation with a wavelength between 360 and 480 nanometres, which the human eye sees as blue or violet. Blue beam ...

The Theory of Laser Beam Expanders

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer What is Laser Beam Expanders?           A laser beam expander is designed to increase the diameter of a collimated input beam to a larger ...

Shopping Guide on Red Laser Pointers

Hot Tags: 303 laser astronomy laser pointer cat laser pointer keychain laser pointer Red laser pointers are far more cheaper than any other lasers since the laser diodes are more simple and mature. This kind of laser were created far more earlier tha ...