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 05-29-2009, 04:17 PM #1
Krutz's Avatar
Class 3R Laser
 
Join Date: Nov 2007
Posts: 1,733
Rep Power: 136
Krutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond repute
Krutz Krutz is offline
Class 3R Laser
Krutz's Avatar
 
Join Date: Nov 2007
Posts: 1,733
Rep Power: 136
Krutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond reputeKrutz has a reputation beyond repute
Exclamation cheap sunglasses as 405nm protection: definite yes!

this topic goes on and on..

here some first-hand experience (from another topic):

Quote:
Originally Posted by Krutz View Post
[http://www.unitednuclear.com/uvglasses.htm] yes, they will filter out (near) uv, so you only see the fluorescence.

better idea: buy several different yellow sports/biking/protective glasses on ebay, check them with your 405nm laser. the best 2 i have (from now 5 different) filter out violet *completely*, you only see the yellowish dot when shining through the googles onto your wall. they are cheap, and more than enough.
get them for playing with uv-leds too! its where the real fun is, believe me! :-)

my only brand one is 3M 2802, fits over your regular glasses. the filtering is ok, you almost see no UV. just a tiny violet shade from 100mw.

my best ones are these:
http://cgi.ebay.de/ws/eBayISAPI.dll?...m=390054125445
3 for 9 :-)

manuel
Quote:
Originally Posted by pseudolobster View Post
For the price you paid for 5 pairs of useless sunglasses, you could have bought a single quality pair of certified laser goggles which were designed specifically for protection from lasers, which have to meet certain standards for safety to be sold as laser protective goggles... If they aren't certified and they aren't meant for laser use they will not protect you from lasers. Does the ability to see matter to you? It's really not worth losing your vision because you were too cheap to buy real laser goggles. My life insurance company values the use of my eyes at $1,000,000, and that's a conservative estimate, think of all the things I could accomplish in the future because I'm able to see, all of that's lost because I can't see. I think it's worth paying $50 to save your eyes. It's like you're trying to make a bulletproof vest out of tinfoil.. If you have any chance of getting shot, why would you risk using cheap and ineffective safety equipment?
Quote:
Originally Posted by Krutz View Post
appreciated, since this is true for many users here, unfortunately.

for me, personally: i have my oemlasers broadbandgoogles for 200$. i have three from the 405nm googles gb (which are made as lasergoogles). yes, they all are good and certified protection from lasers. and totally useless for watching fluorescence. the broadband ones are way too dark, the 405nm ones filter too little (for my taste). the ones i linked filter *all* 405nm, and i mean all. no violet visible, no fluorescence. they are colored plastic, so you cant scratch off any protective coating. they dont bleach out, i checked that. longer than the mandatory 10s. even when burning one of them, with a 100mw pinpoint-focussed 405nm, they melt, but even then wont pass any more 405nm while actually melting! they are in fact "too good" for burning, since you only see the yellowish "dirt" any 405nm laserdiode produces, which is almost too little to focus properly. to sum up, those are better than both of my certified googles, against 405nm (only!).
but then: i dont "burn" with lasers, and i dont use these googles with lasers at all. i use them with a 3w 405nm LED, to block the violet and see only the fluorescence.

for anyone considering 405nm eyeprotection, and EVERYONE should:

-buy cheap yellow shades
-check if they cover your eyes FULLY, from the sides too!
-check that they are "fully colored", and not just yellow coated (should be the normal case anyway)
-check how much passes when shining the laser at your wall and putting the glasses in the beam (if you see *any* violet, its not worth it, try other ones)
-shine your laser at the same spot for a minute: does the yellow fade? if *any* change, toss it!
-bonus: focus your laser, melt the glasses (while wearing another pair of them!), see if any violet makes it through

if they pass: voila, you now have googles which arent certified, but practically better than certified ones you can buy!

this only works with yellow shades and 405nm lasers. you cant do this for red or green lasers, no matter what color you try.

i would suggest any 405nm laser-seller to do that, and add one, two pairs of 5$ googles to any laser, mandatory. i know i will have more than enough laying around here.

sorry for the OT, i will copy this into a new thread in "safety"..

manuel

if asked, i will make pics of this next days.
oh, and before anyone starts with "is your eyesight worth only 10$?" well, is it worth only 100$ then? and in what point is "your" or any protective googles better than the 10$ ones which pass all tests above?
and finally, do you think everyone will buy 100$ googles, if they even were as good as the 10$ ones (and not even worse, like many are)?

AGAIN: all above ONLY when your glasses are properly checked! by the company who certified them, or by yourself. certified googles arent magic, they do the same stuff. with a big $ stamp saying "certified".
AGAIN: this above is only true for 405nm and yellow shades..

*prepares for flames*

manuel


Krutz is offline   Reply With Quote







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







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 10:02 AM.


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