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Old 03-21-2009, 08:31 PM #881
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

Igor --
Will this GB ever take place? :-?
Are you still alive?


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Old 03-21-2009, 10:31 PM #882
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

Igor was having some major issues with his real life business. *Something about his accountant disappearing right before taxes were due, something like that. *He posted about it in the B/S/T section I think, but needless to say it was a lot more important than his hobby, I believe it was putting his entire business at stake. *Either way, his post was around here somewhere, not sure where though.
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Old 03-22-2009, 05:06 AM #883
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

I wouldn't hold my breath. :-[ He obviously has some major issues to overcome before he can get back to this project.
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Old 04-01-2009, 07:12 AM #884
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

If this ever materializes I would like 3-4 405nm coated lenses and perhaps 0-2 of the multi/red depending on their specs.
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Old 04-01-2009, 05:53 PM #885
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

His tax deadline was yesterday, so he should be replying soon
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Old 04-03-2009, 04:18 AM #886
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

Quote:
Originally Posted by Spyderz20x6
His tax deadline was yesterday, so he should be replying soon
Smiley face??
He might not reply ever again :-/
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Old 04-30-2009, 12:57 AM #887
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

So is this still alive or dead?
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Old 04-30-2009, 01:02 AM #888
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Default Re: 405nm AR glass lenses - fit AixiZ *FEELER

Last I heard, Igor will still be doing this GB. As soon as he gets caught up with the lasers...
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Old 05-07-2009, 07:46 AM #889
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Quote:
Originally Posted by jayrob View Post
Last I heard, Igor will still be doing this GB. As soon as he gets caught up with the lasers...
Jay
so how do these stack up against your "magic" lenses jay?
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Old 05-07-2009, 07:53 AM #890
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We won't know for sure until we compare them side by side... Or better yet, on the same build.

I have talked to Igor about making some comparisons and he said that he believes that they will be about the same from what he has read in my thread...

But still, comparisons must be made!

As I told Igor, when I first showed this modification, I was not really planning to sell them, but the immediate interest in the modification prompted me to do so.

I tested them and had to share my findings. I could not keep it to myself. It was too GOOD!
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Old 05-07-2009, 07:11 PM #891
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Quote:
Originally Posted by jayrob View Post
We won't know for sure until we compare them side by side... Or better yet, on the same build.

I have talked to Igor about making some comparisons and he said that he believes that they will be about the same from what he has read in my thread...

But still, comparisons must be made!

As I told Igor, when I first showed this modification, I was not really planning to sell them, but the immediate interest in the modification prompted me to do so.

I tested them and had to share my findings. I could not keep it to myself. It was too GOOD!
Jay
Igor's lenses are supposed to have less splash...
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Old 05-08-2009, 01:54 AM #892
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i hope the results come in soon. I want to start my 6x build and I'm going to start ordering components in the near future. gonna need a glass lens to support 200+mW power outputs or to perhaps get me TO that output.
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Old 05-08-2009, 11:11 AM #893
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Quote:
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Igor's lenses are supposed to have less splash...
That's correct, but ONLY because he decided against the stonger of the three final contenders (which, btw, has the "identical projection" as JayRob's - and I am quoting Igor here!)

Thus, you will get less background "noise" and you will also get less power. Do a little searching in the last pages of this thread (or even Milos' recent lens review, where I thread-quoted the actual figures.)
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Old 05-08-2009, 11:15 AM #894
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Bump (for the latest arrivals...)

Quote:
Originally Posted by IgorT
Just to clear one thing up. There won't be two types of coatings. We could afford two types with any of the first six lenses, but not with these. Luckily these have a broadband coating, which is very good at just around 405nm and 660nm. I did a comparison with a lens coated specifically for 405nm, and there is less than one percent of a difference, resulting from the difference in reflections.

So the broadband is more than just good enough, especially since as it is, the lens brings more of an increase than expected. When i thought the number would be under 20%, 0.8% more could bring it a bit closer.... But we are over 20% even for diodes with the lowest losses in acrylics.

And if one lens can do both, it's both cheaper, less complicated and more practical for everyone...

So we will have one universal lens instead of two. There is no need to specify the coating, because the best lens so far comes with a 400-700nm coating. Basically, everyone just needs to figure out how many they want. They will work with any visible wavelength diode, reducing reflections to less than 1% on average and even less with reds and blu rays...
--------------------------------------------------




It's been like this..
Manufacturer 1:
- v1 - the original custom lens, 30 pieces - FAIL - spherical abberations

Manufacturer 2:
- Doesn't even pick up the phone anymore unless caught off guard, in which case they say &quot;next week&quot;.

&quot;Manufacturer&quot; 3:
- v2 - first custom lens rescue attempt, 2 samples - FAIL - bubble gum lens?
- v3 - second rescue attempt, 2 samples - WORKS! Oh wait, no it doesn't? Wait, now it does? - FAIL - astigmatic lens/low quality


At this point i realized i was relying too much on too few manufacturers, and went nuts, and started searching for other options, by writing and calling more than ten new manufacturers.

I found:

&quot;Manufacturer&quot; 3's actual manufacturer:
- v4 - third resue attempt, one sample - FAIL - this is a lens? *:-/
- v5 - fourth rescue attempt, one sample *- FAIL - this was the first lens that was scratched before i got my hands on it, seems like it was made like this :-?
- v6 - fifth rescue attempt, one sample - FAIL - could almost work, has holes in the beam, quality too low


From the whole bunch v3 and v6 were the best, and yet they were horrible... *:'(
v1 was and still is the highest quality lens (precision machined lens), but it's spherical, and as such useless for us.
Here end the cheap lenses.

Luckily i also found:


Manufacturer 4:
- wanted to send representatives from France and Germany for a tour of my company, and to convince me to buy quality lenses at 68 EURO each for one piece and 40 EURO each for up to 500 pieces. They said we could talk about the price, once we get to larger quantities. They just didn't seem to understand that 250 pieces is a HUGE quantity for us... But i did get some usefull info.


Manufacturer 5:
- Lens #1 - WORKS!
- Lens #2 - WORKS even better!
- Lens #3 - increases the power the most, but has gaps in the beam - probably rejects from the high quality version. Not suitable for our needs, luckily this one was free. They were probably hoping that we don't need quality and that they could sell their rejects. The quality version costs twice as much as the first two of their lenses.


So we are now actually at lens 7-9, and v7 (Lens #1) &amp; v8 (Lens #2) are the best so far.... The latter increasing the power the most.

We will go with the 8th custom lens attempt, for max power and thinnest beam. But i am hoping i can also order some of the first lens, because it makes a &quot;cleaner&quot; spot, due to the medium NA clipping the ugly edges of the fast axis, and creates a &quot;fatter&quot; beam..

Lens #2 will bring out all there is, so the spot shape will depend ONLY on the diode output shape. It's the only way to get all the power out, and means, that diodes with a weird shape output will create weird shape spots... As diodes get better, so will the spots..

It is usual in pointers to go for a lossy option, such as clipping the output with a low NA of the lens, to make the spot rounder, cleaner and prettier.
- An AixiZ lens for example actually makes a pretty nice, rounded off spot, due to the low NA of 0.3...
- Lens #1 creates a flatter spot, but still with a slightly rounded off fast axis, because the NA is 0.4.
- Lens #2 has a NA of 0.55 and brings out the entire output and creates a spot in the same shape.
--------------------------------------------------




These [last three lens samples] are high quality precision grade aspherics. Unlike all the others, these were designed for laser diodes. They even have diode window thickness compensation! Other than collimating the beam, their shape also undistorts the spherical abberations caused by the diode window! These are diffraction limited lenses! Lenses where the size of the foused spot depends only on the wavelength! These are lenses, that could write a disk!
--------------------------------------------------



And finally, a nice synopsis:

NA
Lens #1: 0.40
Lens #2: 0.55
Lens #3: 0.60

FL
Lens #1: 6.30 mm
Lens #2: 4.56 mm
Lens #3: 4.02 mm

Coating
Lens#1: *405nm and 660nm
Lens #2: 405nm and 660nm
Lens #3: 408nm

Power Output Improvement (Based on a 6x diode and Aixiz acrylic lens)
Lens #1: +16.6 %
Lens #2: +24.2 %
Lens #3: * No Data

Power Output Improvement (Based on a high wavelength PHR diode and Aixiz acrylic lens)
Lens #1: +17.5 %
Lens #2: +26.0 %
Lens #3: +26.0 %

Focusing and Burning (Data still to be properly valuated)
Lens #1: *Good?
Lens #2: *Some focusing and burning - less than a long FL?
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Old 05-08-2009, 09:15 PM #895
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Yea, I know... But 5mW less power isn't that much, especially if you have a high power Blu-Ray...
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Old 05-08-2009, 10:39 PM #896
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Quote:
Originally Posted by Spyderz20x6 View Post
...5mW less power isn't that much...
Oh I fully agree and consider lens "2" the best choice too
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