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 08-14-2010, 02:19 AM #1
ZRaffleticket's Avatar
Class 3B Laser
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,505
Rep Power: 15960
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
ZRaffleticket ZRaffleticket is online now
Class 3B Laser
ZRaffleticket's Avatar
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,505
Rep Power: 15960
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
Default Attempting to make a 445 nm laser

Hello, im going to try making a laser, to replace my dead arctic.

I have no need to make it more than 500 mW, and i can get a diode here right?

What kind of resistor would i need for an output of that? (OHM) I would like to use a 9 volt battery if possible, if not, ill just steal a 18650 out of my laptop battery.
Do i get a glass or acrylic lens for 500 mW? where is the cheapest for each?
Whats a good, cheap heatsinc also?

Sorry im asking so many questions, its just that im leaving for vacation tomorrow and i dont have time for research on those now, or much at all then. and i just got refunded today from my arctic


ZRaffleticket is online now   Reply With Quote







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







Old 08-14-2010, 02:32 AM #2
pseudolobster's Avatar
Class 3R Laser
 
Join Date: Jan 2008
Location: BC, Canada
Posts: 1,734
Rep Power: 153
pseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond repute
pseudolobster pseudolobster is offline
Class 3R Laser
pseudolobster's Avatar
 
Join Date: Jan 2008
Location: BC, Canada
Posts: 1,734
Rep Power: 153
pseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond reputepseudolobster has a reputation beyond repute
Default Re: Attempting to make a 445 nm laser

Most people use potentiometers (variable resistors) on their laser drivers.. That way you can adjust the output as you see fit.

Using a LM317T regulator, or any other regulator with a 1.25v reference you would need a 2.5ohm resistor to get 500mA of power. Ideally, you'd want to use two 5ohm resistors in parallel, especially if they're under 1/2 watt.

As for the lens, glass is a must. Acrylic will degrade quickly at the powers these diodes put out.

As for the heatsink, I dunno, any chunk of aluminum with a 12mm hole drilled in it works fine.
__________________
Custom Text
pseudolobster is offline   Reply With Quote
Old 08-14-2010, 02:35 AM #3
Spartan X's Avatar
Class 1M Laser
 
Join Date: Jun 2010
Posts: 241
Rep Power: 10
Spartan X is a jewel in the roughSpartan X is a jewel in the roughSpartan X is a jewel in the rough
Spartan X Spartan X is offline
Class 1M Laser
Spartan X's Avatar
 
Join Date: Jun 2010
Posts: 241
Rep Power: 10
Spartan X is a jewel in the roughSpartan X is a jewel in the roughSpartan X is a jewel in the rough
Default Re: Attempting to make a 445 nm laser

You will have to take the time to do the research, there is no rushing these things. If you just want a 1W Portable, look at getting the Spartan, I got mine today and it looks to be good.

That being said I am also on the way to building my own 445nm. I chose 445nm not for the power, but because the diodes are so darn cheap and seam to be easier to work with.

A few responses to your questions:
Your not going to want to use a resistor and a 9v battery. That may work for a few hours, then your diode is going to be toast. Your going to have to order either a LED driver with the right specifications (Correct Voltage output and mA that the diode can withstand) or order one of the custom drivers sold here on the forum, such as the flexdrive or microboost(best alternative).

Additionally your going to want a lens coated for either 405nm or 445nm, axiz glass is a good choice for a good dot, the 405-G-1 does fine, though does allow for more power to pass.

Add a module to hold your diode, a switch, host...ect and your on your way.

Personally I'm tearing appart a Master Replica Fx lightsaber and using a flexdrive set to 1A, using a 405-g1 lens, dv lava's corrective optics, and running them off of 4 AA batteries. I may even try and work in a beam expander, though that may be contrary to the idea of having the corrective optics in there, heh. I don't expect this project to be done anytime soon. Such is life.

All in All, keep lurking and you will figure it out. And if first you do not suceed, try again. It's just a hobby. Not like you NEED a 1W 445nm Laser, heh.
__________________
My lifestyle determines my deathstyle.
Spartan X 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 01:22 PM.


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