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 06-05-2010, 07:53 PM #17
Class 2 Laser
 
Join Date: May 2010
Posts: 426
Rep Power: 36
SpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond repute
SpyderFire SpyderFire is offline
Class 2 Laser
 
Join Date: May 2010
Posts: 426
Rep Power: 36
SpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond reputeSpyderFire has a reputation beyond repute
Default Re: Idea for driver/host

yes it is , but i have it thermal taped to a small heatsink which keeps the temps ok .


SpyderFire is offline   Reply With Quote







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







Old 06-05-2010, 08:41 PM #18
charliebruce's Avatar
Class 3R Laser
 
Join Date: Nov 2008
Location: London, UK
Posts: 1,550
Rep Power: 123
charliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond repute
Send a message via MSN to charliebruce
charliebruce charliebruce is offline
Class 3R Laser
charliebruce's Avatar
 
Join Date: Nov 2008
Location: London, UK
Posts: 1,550
Rep Power: 123
charliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond repute
Send a message via MSN to charliebruce
Default Re: Idea for driver/host

I have an AMC-based driver, 2.8A - here's a picture of it dropping 5V to 3.2V.



Yes, that's at 150 degrees! Board surface at well over 100 degrees. Cooler bits were solder areas, so reflective to IR. (Efficiency wasn't important for the project and I was feeling lazy when I designed it - it worked fine. I'm going to redesign the driver with a nice buck converter and run the LED at its full power, once the project has been marked)

Heatsink these well when dropping voltages - or you'll have burns to show for it. The chips all work fine, though. At that point, the thermal limiter had kicked in and dropped the current to maybe 700mA vs the theoretical 2.8A.
__________________
If I use too many brackets (like this) then just ignore what's inside them...
charliebruce is offline   Reply With Quote
Old 06-08-2010, 03:40 PM #19
Elektrotechniker's Avatar
Class 3B Laser
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Elektrotechniker Elektrotechniker is offline
Class 3B Laser
Elektrotechniker's Avatar
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Default Re: Idea for driver/host

Ok since there is already a thread about drivers for 445 nm diodes, i am gonna ask here.

I want to make a handheld 445nm build and was thinking which driver to use. I want it to output ~300 mw and powered by 1x 18650 cell. APART from the flexdrive, what other options to I have? Thanks.
Elektrotechniker 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 08:27 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