Possible 8X Sled from HighTechDealz

This is the only thing that I have seen that someone posted. sk8er4514

Google Translate

i've got 3 sleds on the way to my house for harvesting + build.

http://www.photonlexicon.com/forums/showthread.php?p=110244#post110244
This is where I seen these before.

Wooh now..I just looked at my vendors site and they have the BRD-s03/BDR-S03BK too!!!!
Here is a picture and description of it

Pioneer 8X Blu-ray Burner BDR-S03

Newest Pioneer 8X BDR-S03 Blu-ray burner!
Includes CyberLink Blu-ray/DVD software

• Record, rewrite and play back HD video
• Save up to 25GB BD-R Blu-ray disc
• Save up to 50GB BD-R Double Layer Blu-ray disc
• Multi-format BD (Blu-ray) & DVD/CD writer in one

Pioneer 8X BD-R Blu-ray DVD Burner with SATA Interface


The new Pioneer BDR-S03-OEM burns at up to on BD-R (25Gbytes) and BD-R DL (50Gbytes) media! Users can author high-definition Blu-ray Disc content while also having the ability for high-capacity data storage. Reads BD-ROM and BD-ROM DL, reads/writes single and dual layer BD-R & BD-RE discs, reads DVD-ROM, and reads/writes most DVD and CD recordable media formats.

iskor12 said:

This is the only thing that I have seen that someone posted. sk8er4514

Google Translate

Click to expand...

If you look at the Pickup-Optical Path diagram, you can clearly see, that the red diode is drawn with a longer can than the IR and the blu! And we know that this sled has the LCC...


This is great news! :thanks:

I think that the optics could also be compared to that diagram, and i suspect they would be identically positioned. I mean, they went as far as to draw the LCC diode with a longer can.


This is VERY good news! Nice find, Iskor!

Just to clarify what you are saying, you are talking about this picture/drawing right?
If so, yes they clearly did draw the red laser diode to make it larger than the rest.

Just to have a better understanding of these 8x sled, I have incremented all Dave's mW data of the 28% (the good job already done by nikokapo), that is the standard increment of a 405-G-1 lens against an acrylic Aixiz, then I have added the new curve to those already recorded, and this is the result:



As Dave has already noticed, this diode shows a little less efficiency, expecially toward the higher values. Anyway..... taking into account all the factors involved ($$$)....:yh:

My sled arrived today, just waiting on the Kryton I ordered from MrWilling ... WOO HOO!

By glancing at the current chart... I have to say... I can't confidently believe that we are working with only one 8X diode so far.. either they are all manufactured with lower precision than we are used to, or we are working with at least two different diodes... the difference between Intro74s outputs and Kendalls is just too great in my opinion.

I think we ought to treat Kendall's diodes as something different than what many others already have.

But I can't say that definitively.. we'll just need to get more of them tested before we can say much more.

daguin said:

Finally, the voltage draw is VERY different between the diodes

Click to expand...

I definitelly think that this diode is NOT the same as the one from BDR-203, especially if it has a different Vf.


However, consider this...

The slightly lower "efficiency" (= differential eficiency - mW per mA) of the one tested diode, incremented by 28% doesn't mean much, because diodes vary. Additionally, the 28% is a guesstimate, because the increases with glass lenses vary with the diode wavelength and aspect ratio of the output.


As for the voltage data, is it posted anywhere? I would VERY MUCH love to see it!

See, there is this thing that worries me with the 8x's needing as much as 7V in some cases... According to specs, they should not require more than 5.5-6V MAX to reach their pulsed power. In all cases so far, when a diode had a Vf over 6V it was being overdriven to a bizzare level. I can't say this about 8x's yet, cos i haven't seen any myself.


Additionally, if Kendall's "mystery diode" needs less voltage to reach the same current (at which it reaches for all intents and purposes, the "same" power - keep normal variations in wavelength and efficiency in mind!), then it's ACTUAL efficiency is MUCH HIGHER!


Because for actual efficiency, it's not just the current that matters, but also the voltage! A diode needing less voltage for same current, outputting the same power at that current, will heat up MUCH less than a diode needing more voltage - it's actually more efficient.

Efficiency is not mW per mA - that's called "differential efficiency" or "slope efficiency"....
ACTUAL efficiency is mWo per mWe - optical power per electrical power. And electrical power is current TIMES voltage (P = U x I).



So this diode is clearly a different one, if it has a much different Vf and completelly different markings. But i didn't expect it to be the same.

I do however still expect it to be the real Pioneer 8x, and it COULD actually be slightly tougher, or slightly weaker, or it could be almost the same - same power rating, but from another manufacturer. They will of course vary one from another, as no two diodes are ever the same....


Altho if i only had the PIV data to judge from, i'd say that Kendall's mystery diode COULD (not IS but COULD) theoretically be rated for a higher power!
Because unlike the other, more commonly used 8x drive, it doesn't go outside of the specified voltage range for 405nm diodes, when pushed (altho i still have to see any voltage data)...


But i'll just order one and test it, and see what happens. :evil:

I can't wait!

iskor12 said:

Just to clarify what you are saying, you are talking about this picture/drawing right?
If so, yes they clearly did draw the red laser diode to make it larger than the rest.

Click to expand...

Preciselly!

This is why i think it is likelly the real deal! We know that Kendall's mystery sled has the Long Closed Can red inside.

I would very much like to compare the optical train drawn here and to see if it is also exactly the same. :yh:


In my oppinion, you made a great find with that page!



Otherwise, i really find it hard to believe, that no one gutted the Pioneer drive yet!

What's the other 8x drive that was used by members of this forum then?

Why in the pick-up diagram is the path of the LCC take the beam back to the diode?

is that for some constante pre-set variable... I'm I not reading that right?

IgorT;

The voltage is pretty close at 350ma to the low voltage of the 8X Panasonic from Misterwilling:

The power output corresponds pretty well with the 8X Panasonic LD I tested:
8x Panasonic Test

The Panasonic with my Hi-Power BR lens was 350ma = 441mw = 5.6 VDC
versus your test with similar lens .. . . . . . . . . 350ma = 425mw = 5.7 VDC

LarryDFW

Click to expand...

iskor12 said:

Click to expand...

jander6442 said:

Why in the pick-up diagram is the path of the LCC take the beam back to the diode?

is that for some constante pre-set variable... I'm I not reading that right?

Click to expand...

Looks to me like it goes back to the OEIC...the same end spot that the Blu-ray has.

IgorT said:

Preciselly!

This is why i think it is likelly the real deal! We know that Kendall's mystery sled has the Long Closed Can red inside.

I would very much like to compare the optical train drawn here and to see if it is also exactly the same. :yh:


In my oppinion, you made a great find with that page!

Click to expand...

The optics inside the sled do follow this path, and the red diode is like 3 or 4 mm longer than normal diodes. That website on the BDR-S03 was one of the reasons I bought all these

-Kendall

LarryDFW said:

IgorT;

The voltage is pretty close at 350ma to the low voltage of the 8X Panasonic from Misterwilling:

Click to expand...

Thanks!

Ok, two things:
1. The diode COULD be the same as used in the Panasonic 8x in that case (unless markings are again clearly different)

2. The currents you mentioned and the corresponding Vf's sound like they do not go outside of the normal ratings! And that's usually a good sign...


Now are there any reasonably detailed PIV plots of any of these diodes, i could look at? I am used to seeing only the slope-efficiency plots of 8x's, but no Voltage data in them..

The slope efficiency plots are good for comparing diodes of the same type, but for a detailed analysis of a single diode, a plot should show the voltage data as well...


In any case, the more i hear, the more excited i am.. :yh:



I already ordered a test sled from Kendall, for plotting and destructive testing on my Cycler cct., and he was kind enough to share the cost with me a little, since obviously a lifetime test is important info for everyone...

Thanks Sk8ter! :thanks:



EDIT: If nothing else, the reasonably low Vf at 350mA shows, that the diode is NOT yet bizarelly overdriven at this current! And that's a BIG thing! I mean, it's possible that the other 8x diodes just have a higher Vf, but theoretically, these could be rated for a higher power.

Luckily i'll also have the opportunity to plot one of the BDR-203's for comparison (however obviously i won't be able to put it into the Diode Torture Chamber)! In addition to the normal P/I/V plots, i'll also make a comparison Po/Pe plot to see a REAL efficiency comparison!