Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Safety & Legal Issues



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 09-09-2011, 03:35 AM #1
bobo99's Avatar
Class 1M Laser
 
Join Date: May 2011
Location: Ottawa,Canada
Posts: 128
Rep Power: 14
bobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to behold
bobo99 bobo99 is offline
Class 1M Laser
bobo99's Avatar
 
Join Date: May 2011
Location: Ottawa,Canada
Posts: 128
Rep Power: 14
bobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to beholdbobo99 is a splendid one to behold
Default Laser Safety in Laser Shows

In a show like this:
Paul van Dyk @ Trance Energy 2009 (lasershow) - YouTube

How is the laser kept at safe levels as it is being shot into the crowd?

Low power output with smoke? High divergence?


__________________
1.2W 445nm
100mW Waterproof 532nm
5 mW 532 nm x 4
300mW DD Elite 532 nm
275mw Small Police Host 650nm from lazerer!
DIY 800 mA 635 nm http://laserpointerforums.com/f40/2n...avy-70708.html
bobo99 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 09-09-2011, 03:44 AM #2
rocket689's Avatar
Class 3R Laser
 
Join Date: Dec 2010
Location: Oley, Pennsylvania
Posts: 1,149
Rep Power: 64
rocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond repute
rocket689 rocket689 is offline
Class 3R Laser
rocket689's Avatar
 
Join Date: Dec 2010
Location: Oley, Pennsylvania
Posts: 1,149
Rep Power: 64
rocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond reputerocket689 has a reputation beyond repute
Default Re: Laser Safety in Laser Shows

Quote:
Originally Posted by bobo99 View Post
In a show like this:
Paul van Dyk @ Trance Energy 2009 (lasershow) - YouTube

How is the laser kept at safe levels as it is being shot into the crowd?

Low power output with smoke? High divergence?
I'm thinking that had to have taken place outside of the US. I believe crowd scanning is illegal in the US; that's why I say that.

Those 532 beams look to be way more than what is acceptable for eye contact ~5mw. Your average laser show projector is 500mw and up. Mine is 1.2W. I have seen up to 5W projectors. People are playing russian roulette with their eyes there.

Maybe they had to sign a waiver. I know I do when I go to LEM's.

Oh yea, I'm pretty sure they are using smoke. That's why the beams look so "fat".
__________________
Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC
rocket689 is offline   Reply With Quote
Old 09-09-2011, 04:36 AM #3
irritatediance's Avatar
Class 1 Laser
 
Join Date: Aug 2011
Location: Chicagoland
Posts: 57
Rep Power: 6
irritatediance will become famous soon enough
irritatediance irritatediance is offline
Class 1 Laser
irritatediance's Avatar
 
Join Date: Aug 2011
Location: Chicagoland
Posts: 57
Rep Power: 6
irritatediance will become famous soon enough
Default Re: Laser Safety in Laser Shows

I have wondered the same thing.
Looking back, I am truly amazed how many shows I can remember walking through a green tunnel of light.
Lasers have been in underground (and above) shows right in our faces for many years.
Reminds me of awareness to the dangers of smoking we have taken so long to attain.

Most people just do not know the dangers of a laser beam.
__________________
5mW 532nm
60mW 532nm
400mW 532nm
5mW 650nmx4 (still fun)
225mW 650nm
5mW 405nm(the woman's )
425mW 405nm
1.2 watt 445nm
~trichroic prism assembly~
Posting with MBP, my favorite source of electromagnetic radiation
irritatediance is offline   Reply With Quote
Old 09-09-2011, 03:21 PM #4
Guyfromhe's Avatar
Class 3R Laser
 
Join Date: Jul 2011
Location: Winterpeg
Posts: 1,068
Rep Power: 31
Guyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond repute
Guyfromhe Guyfromhe is offline
Class 3R Laser
Guyfromhe's Avatar
 
Join Date: Jul 2011
Location: Winterpeg
Posts: 1,068
Rep Power: 31
Guyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond reputeGuyfromhe has a reputation beyond repute
Default Re: Laser Safety in Laser Shows

Often it is an eye danger scanning like that...

The ways they can make it safer are:

Expanding beam size through a lens to decrease power densitty
Turning laser power down
Turning up scan speed so the beam is not in any one place for more than a few milliseconds
Failure interlocks to turn off the beam if someting goes wrong

It is illegal most places to do crowd scanning because it's super risky even when done properly and can cause eye strain even if it doesnt cause damage.

Look at all the CCDs wrecked at raves on YouTube.
__________________
"Prevent the laser lighting from strong vibration or punch"
Guyfromhe is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 09:22 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC