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 03-26-2013, 10:05 PM #1
Junior Member
 
Join Date: Mar 2013
Posts: 5
Rep Power: 0
xsv161 is on a distinguished road
xsv161 xsv161 is offline
Junior Member
 
Join Date: Mar 2013
Posts: 5
Rep Power: 0
xsv161 is on a distinguished road
Default Question about power output from different battery types

I'm currently using two 16340 batteries for my laser. What kind of power difference would I see if I threw in one 18650 battery? Would I be able to safely look at it for short periods of time (a few seconds) without protective eyewear?

M140 diode
1.25A driver (non boost drive)
3E glass lense


xsv161 is offline   Reply With Quote







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







Old 03-26-2013, 11:23 PM #2
Class 1M Laser
 
Join Date: Jan 2013
Location: Missouri, USA
Posts: 138
Rep Power: 13
corey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to behold
corey5188 corey5188 is offline
Class 1M Laser
 
Join Date: Jan 2013
Location: Missouri, USA
Posts: 138
Rep Power: 13
corey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to beholdcorey5188 is a splendid one to behold
Default Re: Question about power output from different battery types

NO!

The battery isnt going to effect the power output much, because your driver is what determines the current, not the battery. Depending on your driver, 1 battery may not even power it. If you are using a linear drive, it would still probably get enough forward voltage to power the diode, but it would die faster, and stop lasing before the battery died completely.

As far as I know, there is no way to power a M-140 with such little power to make it eye safe (i.e. under 5mw). I dont think it would even lase with such little current necessary.

If you want to use it without goggles, go outside. Make sure you arent looking at the dot on anything unless its 50+ feet away and make sure that there is ABSOLUTELY nothing that could reflect the laser back at you...
__________________
2x 532nm New Wish pens <5mw*OVERSPEC (eBay)
532nm O-Like module in SS Aurora SH-032 host ~50mw - Photos
445nm M-140 in SS Aurora SH-032 host ~1700mw - Photos
405nm New Wish pen <5mw*OVERSPEC (eBay)

Projects in the works:
405nm 12x in Aurora SH-032 <800mw
638nm Mitsu in Aurora SH-032<110mw

Last edited by corey5188; 03-27-2013 at 12:54 AM.
corey5188 is offline   Reply With Quote
Old 03-26-2013, 11:32 PM #3
Junior Member
 
Join Date: Mar 2013
Posts: 5
Rep Power: 0
xsv161 is on a distinguished road
xsv161 xsv161 is offline
Junior Member
 
Join Date: Mar 2013
Posts: 5
Rep Power: 0
xsv161 is on a distinguished road
Default Re: Question about power output from different battery types

Thanks for the info! Looks like I'll just have to pick up a low power laser to use around the house and to torture my cat
xsv161 is offline   Reply With Quote
Old 03-30-2013, 04:50 PM #4
cheech226's Avatar
Class 3R Laser
 
Join Date: Jun 2011
Location: across the river from the big easy
Posts: 1,485
Rep Power: 948
cheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond repute
cheech226 cheech226 is offline
Class 3R Laser
cheech226's Avatar
 
Join Date: Jun 2011
Location: across the river from the big easy
Posts: 1,485
Rep Power: 948
cheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond repute
Default Re: Question about power output from different battery types

i've run m140 diodes driven by a linear driver with one cell. all it does is reduce the output. with ~8V in the laser has full power. Dropping to one cell (~4V) will give a much lower output.
__________________
i have fond memories of owning
10 hene tubes 2 argon ion units and lots of diode and dpss lasers in these wavelengths:
405,445,450,458,473,488,532,543,594,612,632,635,650,685,780
I'm rebuilding my collection:
Skyray 405 12x
kryton groove gitd 445
B&W Tek 473 lab laser
JDSU 2214-40 multiline argon ion
Osram pl520 in an sh-032 host
Skylaser HL532-300
543 HeNe
632 HeNe x3
Opnext 638 single mode in c6 host
Rayfoss 650 150mW
Laserbee II Deluxe lpm w/ Peregrine
Laissez les bons temps rouler!
cheech226 is offline   Reply With Quote
Old 03-30-2013, 05:16 PM #5
Bionic-Badger's Avatar
Class 4 Laser
 
Join Date: Oct 2007
Location: Oregon, USA
Posts: 5,478
Rep Power: 2192
Bionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond repute
Bionic-Badger Bionic-Badger is online now
Class 4 Laser
Bionic-Badger's Avatar
 
Join Date: Oct 2007
Location: Oregon, USA
Posts: 5,478
Rep Power: 2192
Bionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond reputeBionic-Badger has a reputation beyond repute
Default Re: Question about power output from different battery types

Remember that if your M140 is lasing at all it is at dangerous power levels.
__________________
You must spread some Reputation around before giving it to <person> again.
Bionic-Badger is online now   Reply With Quote
Old 04-06-2013, 10:22 PM #6
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 3654
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 3654
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: Question about power output from different battery types

Remember that these diodes run on current. Any stray resistance in connections
will result in power loss. That said ----
Look at the internal loss in your cells. Old cells can get high resistance and cut the
efficiancy of the laser.
There is a thread on LPF to check the condition of your cells. You may want
to get rid of the "bad" ones.
HMike
__________________
It's a dog's life
Hemlock_Mike is online now   Reply With Quote
Old 04-11-2013, 01:52 AM #7
Member
 
Join Date: Jan 2013
Location: Ohio
Posts: 42
Rep Power: 0
Fracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to behold
Fracker Fracker is offline
Member
 
Join Date: Jan 2013
Location: Ohio
Posts: 42
Rep Power: 0
Fracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to beholdFracker is a splendid one to behold
Default Re: Question about power output from different battery types

In my opinion you need to check the specs of your driver and stay within the required voltage. Check the current your driver is set at make sure your batteries will supply enough current. That's a bad ass diode so why under drive it? The battery will effect the output. If you have 2 1000mah batteries and your driver is set for say, 1.8 amps your batteries can't supply enough current for maximum output. While you'll have decent output for a short time you'll drain the batteries quickly. I have a few 5mw toys I use to play with around the house. But for my 2 watt build I want the maximum power I can get. I know your thinking. It would be awesome to have a laser that you could set the power output from 5 mw to say 2 watts whenever you like. Not sure it's possible.

Last edited by Fracker; 04-11-2013 at 04:39 AM.
Fracker 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 03:54 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