Pointer Pen
would the batteries or chip of a laser pointer pen become dangerous over time?
I found this old laser pointer pen (maybe 2 or 3 years old), and the laser didn’t work so I started tinkering with it… now I’m paranoid. it still doesn’t work. ha.
It depends on the type of laser pointer.
Red pointers use a simple semiconductor diode as the lasing material. It never outputs more than, say, 5mW. So it’s unlikely to be hazardous.
Green pointers often use an infrared diode to excite a second material, as it is difficult to obtain a green color directly. The infrared radiation is strong enough to be dangerous (especially to the eye), if the innards of the device are exposed – this needs to be much stronger, as only a part of this energy is released from the second material (as green, visible light).
Batteries can leak, but other than that, not likely to be dangerous.
—
tl;dr version: Don’t tinker with green lasers, but do as you will with red ones.
Astronomy Grade Green-Red Laser Pointer Pen
Spork. Brunch. Camcorder. Codec. Chinglish (the result of a long and messy relationship between the Chinese and English Language). We all like to combine things to create interesting new stuff while maintaining both original purposes. To that end, we decided to combine our most popular green and red lasers into one pointer. Should we name it the “gred” laser pointer? This astronomy grade “gred” laser pointer offers you both the advantages of a green and red laser pointer. The green laser beam itself is visible through Rayleigh scattering and airborne dust. With a 50mW output, this green laser pointer beam can be clearly seen on a moonless night, allowing you to accurately point out individual stars to your friends nearby on a camping trip. Also, these green laser pointers can be used by astronomers at star parties or for conducting lectures in astronomy. Red laser pointers can be used in almost any indoor or low-light situation where pointing out details by hand may be inconvenient. With creativity, you can use this powerful two color laser pointer in many other situations. The Astronomy Grade Green-Red Laser Pointer Pen (50mW) comes in a nice compact presentation style case and it’s a perfect gift for high tech gadget lovers. It is available for single piece or bulk orders, so order yours today and we’ll ship tomorrow! Brought to you by the leader in China Electronics
At a Glance…
- Green and Red laser in one pointer
- Solid build and nice form factor
- Excellent design and built with clip to be extremely portable
- Our famous 12 month warranty
About the Author
Mikel Torch is the Pr Manger of Wholesale-Star.com
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E00999-5mW Violet Laser Pointer Pen White
