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Old 10-19-2009, 08:23 PM #193
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Default Re: FS: Hi Power AR Lens - 25-30% Increase vs. Aixiz

OK, Thanks LARRY............rob


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Old 11-01-2009, 04:49 PM #194
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Default Re: FS: Hi Power AR Lens - 25-30% Increase vs. Aixiz

Rob;

Your batteries will ship Monday.

Thanks;

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Old 11-01-2009, 04:56 PM #195
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Default Re: FS: Hi Power AR Lens - 25-30% Increase vs. Aixiz

Thanks LARRY. How good are these compared to the other brand you were selling, comparable ?
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Old 12-21-2009, 03:34 AM #196
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

phoenix77;

The Battery manufacturers I completely trust, from using hundreds of #18650 batteries in the field are:

1. Panasonic
2. Samsung
3. Sanyo
4. LG
5. Sony

All of these Japanese builders run circles around the Chinese clones.

Most are U.L. rated for safety.

I tried some Ultrafires, and they were junk, IMO.

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Old 01-02-2010, 11:27 PM #197
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Got my lens today.
I'll give it a try with the Lasers I'm picking up on Monday.
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Old 01-05-2010, 04:46 AM #198
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

icecruncher;

With the machined threads of the Kryton,

and the machined threads on the Hi-Power lens assembly,

you should have a very snug focusing assembly.

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Old 02-26-2010, 11:56 PM #199
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Hi LarryDFW,

I am interessed by your hi quality lens asy for bluray and red diode inside AixiZ module.
PM send...

Pascal
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Old 06-07-2010, 05:42 PM #200
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Update for 445nm Laser Diodes

I have a 445nm Laser Diode in route for Power Testing.

HeatSinking will be critical for high power levels from these 445nm diodes.

I think a High NA lens will be required for good power outputs from the 445nm diodes.

Users have reported ~ 26% increase with High Power over stock Aixiz acrylic lens assembly.

Testing will confirm these field reports.

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Old 06-12-2010, 09:23 PM #201
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Hello laserfriends

I,m new at LPF but i,m longtime member at Photonlexicon. I have designed my own lasermodules that needs good lenses. I looked at the ones from you larry and it seems like a very good lens for collimating the 640nm opnext. Also now the casio diode is here i,m very interested in learning how to shape the beam with cilindrical lenses. Dr Lava from Pl succeeded in shaping the beam to a beam divergence 0f 0.7mrad for both axis with the help of a cylindrica lens.

Hope your have results soon Larry!!

The beamroundness looks great from your lenses. Could you tell us the divergence that your lens can produce at 445nm?
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Old 06-13-2010, 03:43 AM #202
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Quote:
Originally Posted by LarryDFW View Post
Update for 445nm Laser Diodes

I have a 445nm Laser Diode in route for Power Testing.

HeatSinking will be critical for high power levels from these 445nm diodes.

I think a High NA lens will be required for good power outputs from the 445nm diodes.

Users have reported ~ 26% increase with High Power over stock Aixiz acrylic lens assembly.

Testing will confirm these field reports.

LarryDFW

Hey Larry,

This is totally true but I think the problem with the 445nm is the multimode output. I feel sure this can be helped by blanking some of the beam but a real solution will be a correction of the fast axis output. I've seen your previous work so I am hopeful you will be in the forefront of lens supplies for this troublesome yet encouraging diode.

[EDIT: If this has already been said then apologies for duplicating the sentiments... ]

M
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Old 06-13-2010, 09:33 AM #203
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

The correction of the fast axis can be done by two prism pairs or with a cylindrical lens. Surplusshed sells alot of these lenses but wich to pick thats the question.

Search - Surplus Shed

Maybe this one:

PRECISION PCX CYLINDRICAL LENS 19MM X 25MM, 19MM FL - Surplus Shed
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Old 06-13-2010, 03:59 PM #204
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Edison;

This 445nm diode has presented some unusual challenges in beam correction.

It has different diode projections from other laser diodes I have worked with.

I have added a stainless steel aperture ring to improve the beam profile.

I analyzed the beam from the diode focused to 10 ft. last night.

The beam started with a vertical bar pattern at a couple of inches,
changed to a round dot pattern at ~2 feet (best for burning),
and then changed to a horizontal bar at 10 feet.

You can adjust the beam pattern slightly by defocusing the beam at most distances.

A cylindrical lens is a good solution to eliminate the difference between the fast and slow axis.

I would order several FL's if you are doing scanner work.

The cylindrical you mentioned is not a coated lens, so you will lose a little power.
Otherwise, it seems likes a good test candidate.

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Old 06-13-2010, 05:58 PM #205
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Quote:
Originally Posted by LarryDFW View Post
Edison;

This 445nm diode has presented some unusual challenges in beam correction.

It has different diode projections from other laser diodes I have worked with.

I analyzed the beam from the diode focused to 10 ft. last night.

The beam started with a vertical bar pattern at a couple of inches,
changed to a round dot pattern at 1-2 feet,
and then changed to a horizontal bar at 10 feet.

You can adjust the beam pattern slightly by defocusing the beam at most distances.

A cylindrical lens is a good solution to eliminate the difference between the fast and slow axis.

I would order several FL's if you are doing scanner work.

The cylindrical you mentioned is not a coated lens, so you will lose a little power.
Otherwise, it seems likes a good test candidate.

LarryDFW
I can confirm this.
The beam from this laser outputs a profile very similar to high power red and IR diodes with multiple emitters.

The divergence angle of the raw output on the fast-axis is so large that ~40% of the beam is cut off by the Aixiz module if no lens is installed.
I am going to try correcting the fast axis (with a cylindrical lens) before the collimating lens. This should allow a larger percentage of the light to pass through the lens and preserve most of the power.

I've got 3 different cylinder lenses on their way. I hope one of them is suitable.
I'm getting excited to get this beam under control!
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Old 06-13-2010, 06:59 PM #206
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Thanks RA_pierce

I,m still waiting on the driver for my setup to combinding red 640nm diodes.
I have a dual en quad setup ready. If those work i can give the plans for the 6 and 8 setup. I,m also busy with finding the best lenses for combinding the reds and i have a good feeling of the ones from Larry. With a single lens the losses are lower then a triple because of the 3 coatings. I,m very interested in your test of the cylindrical lenses. I think larry is also busy with taming the blue beast
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Old 06-14-2010, 12:06 AM #207
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

Quote:
Originally Posted by edison View Post
Thanks RA_pierce

I,m still waiting on the driver for my setup to combinding red 640nm diodes.
I have a dual en quad setup ready. If those work i can give the plans for the 6 and 8 setup. I,m also busy with finding the best lenses for combinding the reds and i have a good feeling of the ones from Larry. With a single lens the losses are lower then a triple because of the 3 coatings. I,m very interested in your test of the cylindrical lenses. I think larry is also busy with taming the blue beast
I use one of Larry's hi-power red assemblies and I can tell you that it is a superb lens.
I have a review in my signature below...
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Old 06-14-2010, 01:40 AM #208
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Default Re: FS: Hi-Power AR Lens Assy- 25-30% Inc. vs. Aixiz

RA;

The cylindrical lenses are a good solution.

I would use the aspherical lens 1st, since the FL is so short,
and try a slip-on for the cylindrical since it has a fixed alignment.

From data I have found, the fast axis has a ~40° divergence,
compared to 12° for the slow axis.

I have not found a reasonable cylindrical lens with the FL I am looking for.

I also would like to know which of the three you feel works the best.

Thanks,

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