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Old 07-15-2010, 05:44 AM   #1
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Default Aixiz Lasers & 445 Lens Coating Mistake

Hi all.
I just wanted to make sure everyone is aware of what a great job Chuck of Aixiz is doing with the massive influx of orders for the 405-445 coated lenses.

I received a 650 coated lens by mistake. I notified Chuck and he responded promptly and offered to send out the correct lens no questions asked.
I even offered to pay for the red lens but I'm getting the blue lens at no charge... not even shipping!
I feel a little bad about taking advantage of this but I'm impressed.

Now if only Wicked had this kind of customer support (for those of you stuck in the Arctic fiasco - not me )! I'm sure Chuck is swamped right now, but he sure is doing a fine job of keeping it under control and replying to e-mails in a timely manner.

I've been a customer of Aixiz for some years and will continue to shop at Aixiz. Chuck deserves some recognition.
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Old 07-15-2010, 06:27 AM   #2
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

^^^ here! here!---- well said--I am not surprized --AixiZ has always IMHO appreciated LPF and have never heard of them asking for items sent in error or doa to be returned-ever! Even when the buyer damaged the item by misuse or incorrect connections to PS.

thanks RA

thanks AixiZ
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Old 07-24-2010, 01:24 AM   #3
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Just got 3 405-445 lenses in today. Just want to let everyone know that they're still having issues with this, and also, if you order multiple lenses, CHECK EVERY ONE.

Of the three, two were coated for red and only one had the correct coating for 405-445.

Looks to be a classic example of bin A getting accidentally dumped into bin B at the manufacturer to me. I would have thought that since they know about the problem though.. that they'd be checking the lenses they send out.

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Old 07-24-2010, 03:30 AM   #4
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

RA;

I am getting frustrated.

This is my second incorrect lens order.

Here is the photo today of the 5 replacement lens assemblies:

Reflects the same Blue I am trying to pass thru these lenses !!

Chuck did send them out as free replacements, but I have been waiting a long time to test one correct lens.

Somebody at this company needs to look at the lenses they are shipping.

My orders have been mixed up in the past also.

LarryDFW

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Old 07-24-2010, 04:04 AM   #5
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Ok, so now I want to check my lens that I just got. Whats the best way to tell the red from the blue lenses? What's the red and blue AR coating color look like?

Thanks,
-Brooks
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Old 07-24-2010, 04:12 AM   #6
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

I got the replacement lens from Aixiz the lens on the right should be correct, the coating is not as golden comparing to the coating on the 405-G-1 lens.
It still has a mix of light blue and light golden color.

Note the lens nut is golden color as well.

650nm lens on left and 405nm lens on right
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Old 07-24-2010, 04:18 AM   #7
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

I got the incorrect lens and he didn't even make me send the wrong one back. So I got a red lens totally free
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Old 07-24-2010, 04:27 AM   #8
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Phew, I just checked mine and its definitely the correct one. Good to know that they aren't all wrong. I got mine about 1.5months ago so maybe b/c mine was b4 the rush.
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Old 07-24-2010, 04:39 AM   #9
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Quote:
Originally Posted by KGB_Productions View Post
Phew, I just checked mine and its definitely the correct one. Good to know that they aren't all wrong. I got mine about 1.5months ago so maybe b/c mine was b4 the rush.
If it's that old, then it was before the current problems started happening. The new mixup seems to have happened when they had the new 405's made with coatings that work better with 445 too. Somehow, a bunch of red AR coated lenses got mixed in.

Though if you got it 1.5 months ago, it means the AR coating doesn't work as well for 445. Though it'll still be fine for 405.
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Old 07-24-2010, 04:42 AM   #10
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

The Aixiz 405nm lens look a little blue under the lamp I though they sent the wrong lens again. Today I check again under sun light it looks golden.
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Old 07-24-2010, 04:46 AM   #11
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

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The Aixiz 405nm lens look a little blue under the lamp I though they sent the wrong lens again. Today I check again under sun light it looks golden.
When I hold the three I got up together, it looks pretty identical to the pic you posted. Two definite blue reflections, One bluish/golden. Side by side it's clear they're different.
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Old 07-24-2010, 04:54 AM   #12
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

^^^ my thoughts exactly--no offence towards AixiZ-- just sayin' looks the same- output is the same -price is the same

-sooo...quack quack

its a duck

maybe some one should take a reading with a BR with the old 405 and the new 445--on thier LPM-

- I would but my 6X BR has the lens glued in place to keep the focus here I want it.
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Last edited by hakzaw1; 07-24-2010 at 04:59 AM.
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Old 07-24-2010, 05:05 AM   #13
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

OK, I took some pics of the lenses I have received (I'm not the best photographer) and was hoping someone could help me identify these coatings. I have a pretty good idea but just wanted to get other peoples' opinions that have had more experience with these.

Not only has there been confusion with the shipments but what also confuses me is there was the "old" 405nm AR coated lens then per Chuck at AixiZ, they got some "new" 405nm-445nm optimized AR coated lens.

So, in the two pictures below there are six lenses in each picture. The top row of three are the red AR coated lenses, I had ordered/received these about 2 months ago.
In the 2nd row going from left to right: The 1st "405nm AR coated" lens I ordered from AixiZ when they were out of stock and sent when they got their shipment in. I thought it look real similar to the "red AR coated" lens so I sent an email stating I got the wrong one so the send a replacement. The 2nd lens from the left is the replacement (which has a different color to it). And finally, the 3rd lens is the one I received from Hak.

So I based my decision that I had received the wrong ones from people here stating that the 405nm lens had a yellowish color (which Haks does). But now I'm not sure due to AixiZ got the AR coating changed for 405nm-445nm.

But it looks to me (the pictures might not show it so well) that the "red AR coated" lens is more violet. The first "405nm AR coated" lens I ordered from AixiZ has a slightly more bluish tint compared to the red lenses. The 2nd row, middle lens clearly has a different color to it than the 1st on the left in the 2nd row. And the lens I got from Hak shows a yellowish/golden color.

I'm so confused, any help?



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Old 07-24-2010, 05:09 AM   #14
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Sorry, I deleted my post above because i didn't read correctly but then you (hakzaw1) posted about my comment so im retyping it...

Quote:
Originally Posted by qumefox View Post
The new mixup seems to have happened when they had the new 405's made with coatings that work better with 445 too.
.
These "new" lenses are just the same old 405 lens. There is no reason that they would need to use a different coating for just a 40nm gap.
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Old 07-24-2010, 05:21 AM   #15
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Well.. the bottom middle has no notches(tiny holes instead) for one thing and the bottom right looks to have wider notches-irregardless of the obvious different tints.

the ones I got have notches on both ends but on the backs the notches are on the inner ring.

and since they come from China each pre wrapped in a 'wax' paper and rolled in fives in a tissue(kinda looked like a bag of 'joints' lol) my guess is that those getting them in lots of five or more just got them the way AixiZ did. Chuck said they sent out 350 of them this week just to catch up on orders and replacements.


BTW they look different in different lighting (sun vs Fluorescent vs Incandescent, etc)-- so don't jump to conclusions til you are sure. and also what is under the lens when you are looking at it too.
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Last edited by hakzaw1; 07-24-2010 at 05:28 AM.
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Old 07-24-2010, 05:28 AM   #16
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

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Originally Posted by hakzaw1 View Post
^^^ my thoughts exactly--no offence towards AixiZ-- just sayin' looks the same- output is the same -price is the same

-sooo...quack quack

its a duck

maybe some one should take a reading with a BR with the old 405 and the new 445--on thier LPM-

- I would but my 6X BR has the lens glued in place to keep the focus here I want it.
Hmm. Well my guess is that the 'correct' 405's they're shipping out are just the leftovers they had, and the red AR coated ones were the batch supposed to have the new coating but their manufacturer screwed up. Seems unlikely that they'd advertise a new coating only to have it proven that it was no different than the old one.. WL doing something like this I could see. I don't see what aixiz would have to gain by it though, since it'd only be a matter of time before someone with a LPM got hold of both lenses and compared them.
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Old 07-24-2010, 05:29 AM   #17
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

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Based on the color of the reflected light off the lens, i would say the only
405-445nm lense you have is the bottom right, all the others have blue tint
made to pass red light, even if they do have varying saturations of blue, they are still blue
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Old 07-24-2010, 05:35 AM   #18
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

I got 25 lenses today. Half of them are adding spatter all around the spot. I waited fir many weeks and am not satisfied. I don't even want to use half of them. I like a clean spot and I can't get it with many of these lenses. Not impressed one but with their recent performance.
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Old 07-24-2010, 05:36 AM   #19
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

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Originally Posted by hakzaw1 View Post
Well.. the bottom middle has no notches(tiny holes instead) for one thing and the bottom right looks to have wider notches-irregardless of the obvious different tints.

BTW they look different in different lighting (sun vs Fluorescent vs Incandescent, etc)

-- so don't jump to conclusions til you are sure. and also what is under the lens when you are looking at it too.
I know the notches and tiny holes are a difference but I really wasn't taking that into consideration, I was just trying to compare the coatings.


That is why I took pictures with the lenses on different colored backgrounds

I wish I had the cash to get a LPM so I could do some real science testing...

I'm trying not to jump to conclusions that is why I posted this to get some other opinions I just don't want to tell Chuck I received the wrong thing when I might not have.


@ Yobresal, what lens have you tried that gives you the best results?

Last edited by Kevlar; 07-24-2010 at 05:48 AM.
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Old 07-24-2010, 01:51 PM   #20
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

I understand Kev-- the 'dont jump' was not meant for you, but for those who did not have any others to compare with. Great photos Kev- that will help to avoid confusion ...


too bad there is not a color code added to the outside of the barrel to make for quickm and easy sorting .

Luke-- If the china maker of these cant get it right- that only makes more probs for us and AixiZ too--afiak the old 405 glass was consistant and came from the same china source-the maker needs better QC-- fer sure. When I met w/ Chuck he mentioned that he had just sent you a lot order--sorry I did not say 'Make sure he gets the right ones!!--

although it is a PITA- he will(most likely) let you exchange them and cover your postage-- he may want them to send back to the maker.



big time waster for us and a no-porfit deal for aixiz


ps my package arrived from you--TY-wow--thank you X100--
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Old 07-24-2010, 02:16 PM   #21
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Any body else notice this?
For those of you who have the real old school, half thread lens. Do you guys see a difference in beam quality?

Quote:
Originally Posted by yobresal View Post
I got 25 lenses today. Half of them are adding spatter all around the spot. I waited fir many weeks and am not satisfied. I don't even want to use half of them. I like a clean spot and I can't get it with many of these lenses. Not impressed one but with their recent performance.
I noticed this as well, with my new lens from jayrob. It does have the correct gold coating, but it has horrible beam scatter. It's so bad I'm not even using it.

I have one original half thread aixiz 405nm lens, and it rocks. It does such a wonderful job with these diodes. It just sucks only having one good lens.
I sure hope Aixiz sorts this crap out
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Old 07-24-2010, 04:25 PM   #22
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

rpaloalto;

I have been investigating the "beam scatter phenomenon" issue.

It seems to be coming from non-uniform blue AR coating designed for Red laser diodes.

I examined one just received Aixiz lens that had "scatter" all over the field of view.

The AR coating was splotchy on the surface of the lens.

I have bought many "405" coated Aixiz lenses in the past,
without observing any of this new "scatter".

I am beginning to seriously question this new "coating lab"
that Aixiz is using for these new lenses.

I just sent back my latest shipment of 445 lenses to Aixiz for replacement,
due to scatter and incorrect blue AR coating.

I should have opened one up to check the AR coatings on each of the 3 lenses.

Anybody have a splotchy lens to sacrifice for LPF ??

LarryDFW

P.S. Kevlar - the "pin style" retainer on one of your lenses also has a smaller aperture for the 445nm diode.
Has anybody tried to disassemble any of these ?

Last edited by LarryDFW; 07-27-2010 at 04:07 AM.
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Old 07-24-2010, 06:54 PM   #23
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

I would also like to add that the lens I received from jayrob, the one that has large wing and scatter. Seems to be assembled backwards, when compared to my one good, old school 405nm.

The retaining ring is on the bottom of the assembly, the end closest to the diode.
It should be on top I believe. Like my older 405nm the retaining ring is on top of the assembly where you mount the focus knob.


I sure hope LarryDFW or jayrob are working on a solution to beat this aixiz lens issue.
Something more then just the smaller aperture mod offered on there current 405nm lenses.
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Old 07-26-2010, 02:55 PM   #24
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

Please excuse the noob question here but is this the lenses you are talking about from Aixiz

AixiZ

I have never bought directly from Aixiz in the past I have always got modules through other members but I here their customer support is the bomb lol
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Old 07-26-2010, 03:30 PM   #25
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Default Re: Aixiz Lasers & 445 Lens Coating Mistake

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Originally Posted by iknitsteel View Post
Please excuse the noob question here but is this the lenses you are talking about from Aixiz

AixiZ
Yes we are Their lenses are coated from 400-460nm or so.
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