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 05-21-2011, 01:27 AM #1
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
gobucks gobucks is offline
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
Default Max Current/Voltage for 1 Watt 445nm

I recently bought the 1 watt 445nm LD from Modwerx and i was wondering what the current and voltage specs are that will give you the highest power output w/o damaging the LD. Any input appreciated.


gobucks is offline   Reply With Quote







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







Old 05-21-2011, 10:34 AM #2
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: Max Current/Voltage for 1 Watt 445nm

voltage: about 4.5V DC
current: somewhere between 1000mA and 1500mA.

It's all in the forum though if you had UTFSE.
__________________
I'm away from home and lasers until late July!
Kryton Groove switch workaround
Get your warning label stickers 0.90$ or less, depending on qty
The INDEX to the LPF
Add to it, and spam it from your signature, too!
Beware! Scams a-plenty, don't be a sucker!
___________________________
ATTENTION
This forum is fullfilled mit special electronische equippment. Fingergrabbing and pressing the cnoeppkes from the lasers is
allowed for die experts only! So all the “lefthanders” stay away and do not disturben the brainstorming von here working
intelligencies. Otherwise you will be out thrown and kicked anderswhere! Also: please keep still and only watchen astaunished the blinkenlights.
anselm is offline   Reply With Quote
Old 05-21-2011, 10:45 PM #3
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
gobucks gobucks is offline
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
Default Re: Max Current/Voltage for 1 Watt 445nm

Is the 4.5 Volts the voltage across the LD when connected or the open circuit voltage at the output of the driver?
gobucks is offline   Reply With Quote
Old 05-22-2011, 11:02 AM #4
123splat's Avatar
Class 2 Laser
 
Join Date: Jan 2011
Posts: 428
Rep Power: 59
123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute
123splat 123splat is offline
Class 2 Laser
123splat's Avatar
 
Join Date: Jan 2011
Posts: 428
Rep Power: 59
123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute123splat has a reputation beyond repute
Default Re: Max Current/Voltage for 1 Watt 445nm

Like the man said, "It's all in the forum though if you had UTFSE."
If you are using a Boost driver, you do not ever, ever, want to apply power with the driver unloaded (output open circuit).
123splat is offline   Reply With Quote
Old 05-22-2011, 09:55 PM #5
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
gobucks gobucks is offline
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
Default Re: Max Current/Voltage for 1 Watt 445nm

I made my own so that doesn't apply, and I UTFSE for an hour....
gobucks is offline   Reply With Quote
Old 05-22-2011, 09:58 PM #6
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: Max Current/Voltage for 1 Watt 445nm

Quote:
Is the 4.5 Volts the voltage across the LD
Yes.This.
3x 445nm LD PIV Plot

Last edited by anselm; 05-22-2011 at 10:00 PM.
anselm is offline   Reply With Quote
Old 05-22-2011, 10:00 PM #7
Flaminpyro's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Flaminpyro Flaminpyro is offline
Class 4 Laser
Flaminpyro's Avatar
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Default Re: Max Current/Voltage for 1 Watt 445nm

You can see over 5.0 volts on the diode when it's at 700ma and above.
I would not push the diode higher than 1000-1400ma and only with the best heatsinking.
They are run at 700ma or so in there original use in projectors.

Peace All...
__________________
White Fusion Time Machine 445
473nm LRS-0473-KFM-00150-10 158.5mW Lab style
laser used in the making of the latest TRON movie

CNI PGL-III-C-589 125mW
520 in a SH-032
Viasho 532nm 500mW
CNI pen 532nm 84mW
The Violet Pip Squeek 45mW

_____________________________________
LOOKING FOR A HOST WITH PERFECT HEAT SINKING
order your C-88 Cu kit today !

Flaminpyro is offline   Reply With Quote
Old 05-22-2011, 10:22 PM #8
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
gobucks gobucks is offline
Junior Member
 
Join Date: May 2011
Posts: 7
Rep Power: 0
gobucks is on a distinguished road
Default Re: Max Current/Voltage for 1 Watt 445nm

Thanks for the info
gobucks is offline   Reply With Quote
Old 05-23-2011, 01:19 AM #9
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18210
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Max Current/Voltage for 1 Watt 445nm

Its always a trade off between power and diode life, so you need to pick conservative or performance at some point.

I'd say 1.0 amp is a good choice that will give you about 1 watt of power output, with good diode life as long as you provide proper heatsinking. Don't worry about the forward voltage, that should end up somewhere between 4 and 5 volts at that current. If its over 5 volts, you may had a bad diode.
Benm is online now   Reply With Quote
Old 10-18-2013, 03:57 PM #10
Junior Member
 
Join Date: Oct 2013
Posts: 24
Rep Power: 0
trawen is a glorious beacon of lighttrawen is a glorious beacon of lighttrawen is a glorious beacon of lighttrawen is a glorious beacon of lighttrawen is a glorious beacon of light
trawen trawen is offline
Junior Member
 
Join Date: Oct 2013
Posts: 24
Rep Power: 0
trawen is a glorious beacon of lighttrawen is a glorious beacon of lighttrawen is a glorious beacon of lighttrawen is a glorious beacon of lighttrawen is a glorious beacon of light
Default Re: Max Current/Voltage for 1 Watt 445nm

When you talk about term life, what time do you mean?
Dozens of hours and hundreds or more?

Why diodes are dying? There's something to burn out?
trawen is offline   Reply With Quote
Old 10-18-2013, 04:28 PM #11
djQUAN's Avatar
Class 3R Laser
 
Join Date: May 2013
Location: Philippines
Posts: 1,128
Rep Power: 559
djQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond repute
Send a message via Yahoo to djQUAN
djQUAN djQUAN is offline
Class 3R Laser
djQUAN's Avatar
 
Join Date: May 2013
Location: Philippines
Posts: 1,128
Rep Power: 559
djQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond reputedjQUAN has a reputation beyond repute
Send a message via Yahoo to djQUAN
Default Re: Max Current/Voltage for 1 Watt 445nm

List of 445nm diodes
djQUAN is offline   Reply With Quote
Old 10-18-2013, 05:31 PM #12
Blaster's Avatar
Class 3R Laser
 
Join Date: Jul 2013
Location: Adelaide , South Australia
Posts: 1,172
Rep Power: 107
Blaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond repute
Blaster Blaster is offline
Class 3R Laser
Blaster's Avatar
 
Join Date: Jul 2013
Location: Adelaide , South Australia
Posts: 1,172
Rep Power: 107
Blaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond reputeBlaster has a reputation beyond repute
Default Re: Max Current/Voltage for 1 Watt 445nm

Ive got a few 1.1 watt blue lasers and they draw just over a amp ,they don't get warm well the host doesn't. And the duty cycle is around 2 mins on 1 min off and had them for quite a while no issues if that helps at all .of course you only know you have and issue generally when it blows, by then too late.
__________________
Blasters Lasers and Gear
95 mW 405nm custom 501b
102 mW 405 nm custom C6
125 mW 405 nm focus-able 501b
270 mW 405 nm 20MM Cannon shell focus-able
705 mW 405 nm focus-able 501b G2 lens

865 mW 445 nm Kryton Groove
1130 mW 450 nm focus-able custom
1175 mW 450 nm focus-able S4

1375 mW 445 nm WL ARCTIC S3
2.3 watt 445 nm G2 -Cree Q5
3.1 watt +Adj 445 nm Blitzbuck V3.1 9mm SS Survival host

95 mW 532nm custom focus-able
110 mW 532 nm S4 host
125 mW 532 nm SD 305A x 2
135 mW 532 nm SD 301 focus-able x2

135 mW 532 nm focusable laser SD 303 x2
175 mW 532 nm custom focus-able

494 mW 532 nm O like Crown*
100 mW 589 nm
PGL III C
115 mW 635 nm custom C6 host
800 mW 635 nm Hotlights host G1 lens

155 mW 645 nm custom 501b host
160 mW 650 nm focus-able C6 host
255 mW 650 nm SD301
280 mW 650 nm SD302
260 mW 660 nm custom C6 host
505 mW 660 nm custom C6 host
45 mW 650 red and 114 mW 532nm multi laser
350mW 830 nm IR custom C6 focus-able
Another
4 dozen plus 5 mW to 160 mW in all colors Way overspec ebay pens
LaserBee 3.7W USB Laser Power Meter

Last edited by Blaster; 10-18-2013 at 05:33 PM.
Blaster 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 11:59 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