40mW Sanyo 635nm LDs on Ebay

[mfo]

I suggest that we alter our "normal" attitude towards diodes with this one

With the wavelength going higher with both current AND heat, this is not a diode that you want to "push."

Remember, the beauty of this diode is that it is 638nm

It is true, that we often push diodes to twice their rated output.

However, what good would that do you if you push this one up to 650nm? Suddenly you have yourself an 80mW 650nm red pointer :na:

Peace,
dave

My thoughts exactly. As with the 635's from Phi's GB, I'll be running this at the current it says to run it at, which is 100mA.

Now, I need to find a nice pen host for this.

 

[midias]

My thoughts exactly. As with the 635's from Phi's GB, I'll be running this at the current it says to run it at, which is 100mA.

Now, I need to find a nice pen host for this.

Jayrob sells one it works great here are the pics from my build. Remember the diode case is LD+

http://laserpointerforums.com/f50/46mw-635nm-pointer-lots-pictures-58578.html#post834278

 

[mfo]

Jayrob sells one it works great here are the pics from my build. Remember the diode case is LD+

http://laserpointerforums.com/f50/46mw-635nm-pointer-lots-pictures-58578.html#post834278

Thanks. I actually have a few of these already. I wanted to switch it up. I'd love to get a couple CNI hosts....

 

[midias]

Thanks. I actually have a few of these already. I wanted to switch it up. I'd love to get a couple CNI hosts....

Yea those would be nice. You could also get a jayrob host strip and polish it that could be fun. What driver were you going to use?

 

[mfo]

Yea those would be nice. You could also get a jayrob host strip and polish it that could be fun. What driver were you going to use?

Flexdrive.

 

[midias]

Flexdrive.

Cool just isolate the LD case from the batteries and you should be good to go.

 

[mfo]

Received mine today.

 

[RA_pierce]

Received mine today.

Mine is already installed and lasing. :eg:
Set at 40mW.
I'll post some details and pictures later.

 

[LtKernelPanic]

I just wanted to let you know I hate both of you. :evil:

 

[midias]

Received mine today.

Got mine the same day now I just have to decide what i want to put it in. The last one was a nice pen host with a LM337 driver now I have to decide what to do with this one. Right now I think I will put it in an adjustable host so i can play around a little.

 

[mfo]

Mine is already installed and lasing. :eg:
Set at 40mW.
I'll post some details and pictures later.

What is your setup? I was thinking of pressing it into an Aixiz module and then pen host. Do these things generate heat @ 100mA?

 

[RA_pierce]

Here it is: http://laserpointerforums.com/f52/galileo-40mw-638nm-sanyo-diode-61221.html#post867359

It does not seem to get warm. 2.4V 100mA = 0.24W so with 40mW output that's 200mW of heat generated at the diode.
A pen will work fine.
But the cooler the better! Keeping the temperature low will hep the diode stay below 640nm.

 

[midias]

What is your setup? I was thinking of pressing it into an Aixiz module and then pen host. Do these things generate heat @ 100mA?

My pen running~ 106ma does not get warm at all just remember to isolate the diode case from the battery unless you are using a low side driver

Here are pics of my pen build

http://laserpointerforums.com/f50/46mw-635nm-pointer-lots-pictures-58578-new-post.html

 

[anselm]

Got mine today, now let's see if a green fleabay pen can be cannibalized for a host....
Too bad I'm out of modules for the diode itself at the moment.

 

[midias]

Got mine today, now let's see if a green fleabay pen can be cannibalized for a host....
Too bad I'm out of modules for the diode itself at the moment.

Good luck with that what are you gonna use for a driver?

 

[anselm]

Well, the driver from the green, I thought. It's negative side, close to voltage of IR, just need to
turn down the current a little, no?