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Diode Repair & Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

JLSE

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Since I joined the forum in 2007, one thing has plagued the red laser build. This
not only applies to the handheld, but also the labby.. -Neg grounds

Now many of us like red, and when we build one, are subject to limitations, mainly driver variety.
Many of the drivers, we use will not work with a red unless the diodes are electrically isolated.
But in isolating the diode electrically, also impedes the flow of heat into the heatsink.

In turn you get to use you favorite driver, but not have the benefit of a solid thermal connection.


What I have done is take a standard LOC and various other red diodes with a -neg ground, and
re-route the -neg lead wires to the unused pin. The lead is then soldered and you have a neutral ground
diode :D


Turning this >
into this >


Considering what powers the average builder runs their diodes at, you want to flow as much
heat off as quickly as possible... This counts even more when you spend extra on a copper
heatsink, and have to isolate the mount. Its a waste.


I will be offering this service to anybody interested. Diodes with a can must be de-canned
in order to perform this. LCC diodes as well as some other reds require an internal 3rd pin
extension in order to re-route the ground.


Pics will be added shortly of before and after..


All diodes will be tested before and after, and any damages covered. In other words, I break it, I buy it. :san:
I have done this proceedure to about 50 diodes To gain a good solid grasp and success of each step..

Note, I dont accept diodes already mounted, too much room for error getting them out of the mount
without damaging.


Pros:
-Better thermal transfer
-Wider variety of drivers ex. boost drivers with a single 1.5V alkaline
-Isolates for use in arrays, and RGV setups
-Makes your diode a little more unique




Pricing:
-Neutral grounding open-can, 5.6 / 3.8mm- 10$
-De-canning-5$
-Internal 3rd pin extension (LCC diodes or PHR)- 5$


Message me for payment, and post any questions you may have :beer:


*EDIT

Teaser video.. This was one of the first diodes I did this to. The idea in
this vid was to get the ground line prepped, but does not contain the soldering.
I will have to make another video to add.

To give an idea of the scale, this was at 30x magnification, with the cam in macro,
and a 1.5~2x optical zoom. The razor used to clip the lead is a standard medical grade scalpel.
I added some music so you don't have to listen to me repeatedly hold and releasing my breath lol.



Also note, you only see one pin in the video.. That diode was a LCC. In a normal
LOC, both pins are long and do not require an extension..
 
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RA_pierce

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

I'm unfamiliar with most of the current drivers and kits that are available but I don't remember ever having a problem with - case diodes. My favorite driver was the flexdrive and I've built many red lasers with them no problem.
In fact - if I remember correctly - the flexdrive was most convenient and originally intended for red diodes that were case -. I even would make my case neutral diodes like the 405nm diodes case - by joining the - and case pin because that configuration was most convenient.

The diodes I had trouble finding drivers for were 808nm since they are case positive.

Maybe I have it backwards but I am also not up to date on current red laser diodes... or any diodes newer than the A140 type for that matter.


BTW, awesome that you have successfully done it! Perhaps some pictures could clarify my confusion.
Good work as always!
 
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foulmist

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

MY GOD!!!!

THAT'S UNREAL!

SWEET MOTHER OF ALL AWESOMENESS!!!!:wave::wave::wave::wave:
 

yobresal

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

Yeah I must say this is pretty damn presicion work.
 

JLSE

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

I'm unfamiliar with most of the current drivers and kits that are available but I don't remember ever having a problem with - case diodes. My favorite driver was the flexdrive and I've built many red lasers with them no problem.
In fact - if I remember correctly - the flexdrive was most convenient and originally intended for red diodes that were case -. I even would make my case neutral diodes like the 405nm diodes case - by joining the - and case pin because that configuration was most convenient.

The diodes I had trouble finding drivers for were 808nm since they are case positive.

Maybe I have it backwards but I am also not up to date on current red laser diodes... or any diodes newer than the A140 type for that matter.


BTW, awesome that you have successfully done it! Perhaps some pictures could clarify my confusion.
Good work as always!
Thats just it, you are confined to a particular driver.. A build can now be done with
a boost of your choice and an alkaline or rechargeable. Many of the buck regulators cannot share ground etc.

Even the AMC drivers are neg- side and cause issues unless you can fit them in the tail cap
and regulate the neg before it enters the host body. Another example is array builds like
member andycon always posts.. The reds are mounted in some thermally restrictive material.. wasteful.
Even if it conducts well, you cant beat a metal on metal contact.



MY GOD!!!!

THAT'S UNREAL!

SWEET MOTHER OF ALL AWESOMENESS!!!!:wave::wave::wave::wave:
:beer:

Yeah I must say this is pretty damn presicion work.
These were my baby steps, I have other things in the works that will knock your socks off :eek:

Its all hush until I perfect it :shhh:
 
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RA_pierce

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

Right. I'm not trying to discredit the idea in case that is how it seemed. I was just wondering why you would do this for a LOC if most drivers are designed to work with them anyway.
For some case + 808nm and 635nm diodes this could come in very handy.
 

T_Warne

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

You must have really steady hands! If I tried something like that it would end badly.
 

JLSE

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

Right. I'm not trying to discredit the idea in case that is how it seemed. I was just wondering why you would do this for a LOC if most drivers are designed to work with them anyway.
For some case + 808nm and 635nm diodes this could come in very handy.
I get what you're saying, but what drivers are you referring to?

Many drivers are meant for case+. You can use either type now with
the diode. 532pens, case+, ax2002 DX buck driver needs isolated neg
from the drivers output, AMC7135 low drop out, output must be
isolated from the host body. the list goes on.

Thats why people were getting excited with the new 635's 300 and 500mW
diodes, they are also case neutral.. Its also why people complain about the
PHR 805's, unlike the 803T they are not case neutral.


You must have really steady hands! If I tried something like that it would end badly.
When I first started this, I was at a few cups of coffee per day.. This quickly
became an issue. No caffeine for a few days before I break out the microscope :undecided:
 
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foulmist

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

yeah case neutral is waaay better than case negative!

I kinda hate case negative/positive diodes!

case neutral allows for better flexibility when choosing your driver.
 

DTR

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

You think case/ld negative is a pain try finding a good driver for a case/LD positive like the sanyo 635's. That was a pain. Great work by the way.:beer:
 

JLSE

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

yeah case neutral is waaay better than case negative!

I kinda hate case negative/positive diodes!

case neutral allows for better flexibility when choosing your driver.
Exactly... For me its always been a headache. I cant stand DVD writer
reds just because of the lack in options.

On a side not, you cannot do this with 808's.. At least with the ones
I have seen (many) they are +pos ground but there are no leads to
re-route. Instead the +pos enters at the base of the chip. But again
there are tons of drivers that support it.

You think case/ld negative is a pain try finding a good driver for a case/LD positive like the sanyo 635's. That was a pain. Great work by the way.:beer:
Thanks :beer:

Why not use a driver for 808 and bump up the input voltage a bit?
If I get my hands on one, I will be sure to try re-routing it.
 
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lasersbee

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

Man that macro video is amazing....:eek:
I'm impressed....
Nice prices on that re-routing service and a no risk
guarantee to boot...:gj:

I think I know who to call if I ever need some brain
surgery...:whistle::crackup:


Jerry
 
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AUS

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

Very impressive... I should send you the two LOC's I have that I knocked the wires off, the PHR805 that I twisted the pins off, and several others! - The advantage is that they are already dead so you don't have to buy them if you wreak them..
 

jander6442

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

good job... lets hope JLSE has a good women, one that will let him keep at his workshop.:bowdown::na:
 

Blord

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

How is it possible ? With those hands you can begin a new career in surgery.
 

andy_con

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Re: Diode Services / Internal Ground Re-Routing / LPC, LCC, SMOC, PHR 805's

do you offer discount for high volume orders?
 




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