Collecting 445 Diode QRCodes/Serials

Hey guys,

In this thread we started looking at the 2D code matrices that are on each diode. Here's an example:



I'd like to ask more members to submit macro shots of their diodes so that we can start to develop an understanding of these numbers. So far, they appear to be straight-forward serial numbers. I'm going to keep this OP updated as more data comes in, and I'll decode the matrices for everyone, provided the shot is clear enough. It needs to be clear enough that I can load it into photoshop and turn it into something like this:



If you can't take a good macro shot of the code though, please don't post your image. A blurry image won't help. This is about the worst that can be decoded:
http://laserpointerforums.com/attachments/f65/37008d1331325633-140-vs-m-140-vs-h1600-1.jpg
Please don't submit anything worse than that, and if you can do a whole lot better (that was my image, so I don't mind criticizing it) that would be appreciated! Posting a reference to an existing thread with macro shots is also useful. It's important to know which series diode (A/M/H) we're dealing with, and if A-series, roughly when the diode was purchased.

The data so far is posted below. Note that the comma separated data in the brackets is added by me to make comparison easier. The commas are not encoded in the original matrix on-diode.

[A Series]
1209057747 (1,209,057,747) : BJord
3303441770 (3,303,441,770) : BJord
3304677992 (3,304,677,992) : etyhxs
1209532894, 1209532911, 1209777872, 1209777873, 1209777896, 1209777902, 1209777932, 1108614717, 1108614727, 1108615399, 1108615422, 1108615562 : BobHaha *single array*

[M Series]
3304940224 (3,304,940,224) : BJord

[H Series]
3305273097 (3,305,273,097) : RHD

I think the 3304808762 isn't from the 445nm diode.

The pictures below are from the A-140 diodes.

Blord said:

I think the 3304808762 isn't from the 445nm diode.

The pictures below are from the A-140 diodes.

Click to expand...

Ok, I removed ..762 from the data, and added the two new ones.

ok well managed to get these with my iphone 4! Got these from flaminpyro.. Flaminpyro states the left one is a A-140 en the right one M-140

Hope you guys can red the code.

Greetings,,

http://img803.imageshack.us/img803/6053/img1921d.jpg

offroadfreak8582 said:

ok well managed to get these with my iphone 4! Got these from flaminpyro.. Flaminpyro states the left one is a A-140 en the right one M-140

Hope you guys can red the code. Sorry if the pic is too big!

Greetings,,

http://img803.imageshack.us/img803/6053/img1921d.jpg

Click to expand...

Unfortunately it's not clear enough to read it, even after some manipulation.

You may also want to edit out the IMG tags from your post, so that the huge image doesn't embed inline with your content.

rhd said:

Unfortunately it's not clear enough to read it, even after some manipulation.

You may also want to edit out the IMG tags from your post, so that the huge image doesn't embed inline with your content.

Click to expand...

oke wel thats too bad.. I want me a better camera

offroadfreak8582 said:

oke wel thats too bad.. I want me a better camera

Click to expand...

You actually don't need too great of a camera. I don't even have a macro lens. I just used this trick:
How to tun any lens into a macro lens - YouTube

You literally take the lens off your DSLR entirely, and then hold the lens backwards in from of the camera, and move it forward and backward. Almost any camera + lens combination will work for this, and capture a decent macro shot.

I wiil try to take some pics also later.
I would like to ask you RHD, what you
are planning to do with these codes.

Jim

jimdt7 said:

I wiil try to take some pics also later.
I would like to ask you RHD, what you
are planning to do with these codes.

Jim

Click to expand...

Collect them - put them in the OP (as I've been doing).

rhd said:

Collect them - put them in the OP (as I've been doing).

Click to expand...

And then....... ? :thinking:

Jim

I will see what I have when I get home :beer:

Should have at least ONE diode I can take a photo of. The other is in a host. Ill see what I can do.

jimdt7 said:

And then....... ? :thinking:

Jim

Click to expand...

Then.... see what comes of it

It may be that it leads to a better understanding of diode binning, or revisions, etc.

Perhaps categorizing diodes based on A-series, M-series, etc, paints an incomplete picture. If the diodes themselves have a serial number that corresponds with someone else (whether time of manufacture, batch, etc), that could be useful to understand.

It's really hard to spell out what this data will be useful for, before we have more of it to analyze.

I got my H1600 diodes today but this is as good as I could get.:undecided:

That image unfortunately won't work either.

Ok, so I'll provide some additional guidance that may help lower-resolution images become usable.

- Images taken square (IE, as squares, instead of diamonds) will allow for a little less clarity or sharpness to produce something usable).
- Posting a link to the full-resolution file is key. Since there is a 680 pixel limit on images uploaded to LPF, the solution is to zip the image (the full resolution digital camera file), and then upload the zip.

Here's an M140 diode, one at a bit of an angle - http://dl.dropbox.com/u/1181169/P1000622.JPG

Straight down - http://dl.dropbox.com/u/1181169/P1000626.JPG

(note: large images, ~4mb each)

Ok, sorry to toss more direction at everyone, but one other tip:

- Wipe (really well) the thermal paste off the code area. Each dot is actually a laser-burned pit. The white thermal goop tends to accumulate around each pit, and (as in the case of MarioMaster's images) can make a really well-taken photo difficult to decode.

Awesome clear macro shot, but because of the white buildup on the edges of each dot, I can't get a clear read (and I can't manipulate the contrast to get better defined points).