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Don't use a green laser in the cold! (Patreon)

Published:
2020-08-30 17:18:55
Imported:
2026-06
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Content

Time to bring some public attention to the risk of using green DPSS lasers in the cold.

I know green lasers are used to point out stars on frost-clear nights, and Christmas decoration lasers are used outside at winter too.

But are people aware of the invisible hazard from an apparently non-working laser? In this video I try to show how bad it can be.

And as a sidetrack, I test the wavelength of my IR remotes :)

Files

Previews only

Don't use a green laser in the cold!

Does a green laser pointer stop working when it is cold? Or does it turn into an invisible laser? That is nice to know for safety reasons if you are using a green laser pointer to point out stars on a frost-clear night. And what about those decorations lasers for your garden? Are they safe at a freezing winter night? Time to find out in this video! My Patreon-page: https://www.patreon.com/Brainiac75 Links for some of my videos on the subject: Test of garden decoration lasers: https://youtu.be/BjERfWgJyMA Wavelength drifts with temperature: https://youtu.be/EB_tqKcGKwA The issue with green laser pointers: https://youtu.be/iR1Ku5dnbH8 You can see infrared?!? Failing safety glasses: https://youtu.be/r3V5PzTDP7E Monster magnet meets lasers...: https://youtu.be/FF9i5qQhNyU Strongest lasers in my collection | Power and wavelength measured: https://youtu.be/c4RsQdyjgJE Did you miss one of my videos?: https://www.youtube.com/user/brainiac75/videos FULL MUSIC CREDITS Time codes: 0:01 + 0:46 "Consequence" Kevin MacLeod (incompetech.com) ISRC: USUAN1100283 Time code: 0:36 "Gathering Darkness" Kevin MacLeod (incompetech.com) ISRC: USUAN1100849 Time code: 0:57 "Winter Chimes" Kevin MacLeod (incompetech.com) ISRC: USUAN1100009 Time codes: 2:32 + 6:41 "Darkness is Coming" Kevin MacLeod (incompetech.com) Edited to be loopable. ISRC: USUAN1100584 Time codes: 3:54 + 8:41 "Lightless Dawn" Kevin MacLeod (incompetech.com) ISRC: USUAN1100655 Time code: 5:28 "Echoes of Time v2" Kevin MacLeod (incompetech.com) ISRC: USUAN1300030 All music above licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Time code: 7:57 Mix of two tracks: 1) The Shimmering by fran_ky (freesound.org/s/237363) Licensed under Creative Commons 0 license 2) "Spacial Harvest" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ ISRC: USUAN1100653 #Frozen #Laser #Brainiac75

Comments

Anonymous

What brand/model of the test equipment you are using to measure spectrum & power?

Brainiac75
>>75262057

For the spectrum, I am using a Lasertack LR2 in the 200-1200 nm version. Very similar to the ASEQ Instruments LR1 - just rebranded for the European market. The laser power meter is a Tracer 20W Laser Power Meter from Sanwu Lasers. I am currently testing a much cheaper and simpler laser power meter. Stay tuned for next video here on Patreon and my YouTube channel ;)