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 > 445nm Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 09-15-2010, 09:14 AM #65
DrSid's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
DrSid DrSid is offline
Class 3R Laser
DrSid's Avatar
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
Default Re: Any 445 accidents yet?

Good idea ! Pity I don't have LPM. For such purposes it would be interesting to have 'artificial eye', lens with 7mm diameter, to be mounted in front of LPM. Anyway most LPMs I've seen have about that size of sensor .. and they should measure both focused and unfocused light. Some sensitive LPM would be useful, as values will be low, I guess under 10mW.


__________________
200mw (35mw compared) FocalPrice cheap green AA - Review
500mw (estimated) 445nm Minimalistic Orange Emos Direct Drive. Thread
1500mw (estimated) 445nm Jayrob's Solarforce L2P. Review
DrSid is offline   Reply With Quote







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







Old 09-15-2010, 02:01 PM #66
oic0's Avatar
Class 2 Laser
 
Join Date: Jun 2010
Posts: 289
Rep Power: 10
oic0 has a spectacular aura aboutoic0 has a spectacular aura about
oic0 oic0 is offline
Class 2 Laser
oic0's Avatar
 
Join Date: Jun 2010
Posts: 289
Rep Power: 10
oic0 has a spectacular aura aboutoic0 has a spectacular aura about
Default Re: Any 445 accidents yet?

The under 5mw thing is not safe for constant exposure though. That is what is safe for the short period of time before you close your eyes. Someone needs to find out what the constant exposure limit is though it will probably vary by wavelength since some will cause your iris to close more than others.
oic0 is offline   Reply With Quote
Old 09-22-2010, 06:10 PM #67
Class 1M Laser
 
Join Date: Jun 2010
Location: Seattle, WA USA
Posts: 239
Rep Power: 27
james1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant future
james1095 james1095 is offline
Class 1M Laser
 
Join Date: Jun 2010
Location: Seattle, WA USA
Posts: 239
Rep Power: 27
james1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant futurejames1095 has a brilliant future
Default Re: Any 445 accidents yet?

I burned my finger when I first played with the projector. Holding down the interlock switch and aiming the array at a tree. Finger slipped into the beam path and it stung, that was enough of a wakeup call for me, been a LOT more careful since then.

I'm betting a number of people have already damaged their eyes and don't know it yet. It only takes once and there's no going back. It's what has kept me from building anything too portable with these. They really ought to be in a good solid mount that won't roll around, have a keyswitch and mechanical beam shutter or cap.
james1095 is offline   Reply With Quote
Old 09-22-2010, 09:10 PM #68
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
LSRFAQ LSRFAQ is offline
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
Default Re: Any 445 accidents yet?

Quote:
Originally Posted by oic0 View Post
The under 5mw thing is not safe for constant exposure though. That is what is safe for the short period of time before you close your eyes. Someone needs to find out what the constant exposure limit is though it will probably vary by wavelength since some will cause your iris to close more than others.
Constant skin exposure is a mere 320 uW per CM^2 for a 8 hour day, or less depending on wavelength. Eye is less then that.

Yes, prolonged exposure to scattering is cumulative as well, and with a class IV laser, even indirect scattering can be hazardous, you have to MEASURE each situation, as no two scatterers are the same.

Steve
LSRFAQ 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 09:27 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