Lazer Pen 【OFFICIAL】

: When electricity hits the diode, it excites electrons, which release photons (light particles).

: The most common and least expensive. They use simple diodes and are widely used in low-power pointers and barcode scanners.

: Often more powerful and can cause fluorescence in certain materials, making them glow. Safety and Classification lazer pen

: A lens at the tip focuses the scattered light into a tight, parallel beam that stays concentrated over long distances. A Spectrum of Colors

: A tiny semiconductor that converts electricity into light. : When electricity hits the diode, it excites

Laser pens come in various colors, each with different properties:

: Appears much brighter to the human eye because our vision is most sensitive to the green spectrum. These are popular for stargazing as the beam is often visible in the air. : Often more powerful and can cause fluorescence

Not all laser pens are safe for casual use. They are classified by their power output (measured in milliwatts, ): LASERPEN the LASER PEN