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Old 10-01-2014, 07:01 PM #1
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Default Corrective Optics

Hi LPF,
I've been on the hunt for some corrective optics and am turned off by their high prices,
This led me to speak with a manufacturer regarding having some made.

At the moment i'm getting quoted $30 per set at 50 units and $25 per set at 100 units.

If anyone has a cheaper source i'm all ears, I think a lot of us here could use some good ar coated optics for correcting these multimode diodes


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Old 10-01-2014, 07:08 PM #2
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Default Re: Corrective Optics

Waveplates and anamorphic prisms
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Old 10-02-2014, 01:25 AM #3
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Default Re: Corrective Optics

I'd take a set
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Old 10-02-2014, 01:44 AM #4
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Default Re: Corrective Optics

"corrective optics"

Are we talking about FAC? Cylindrical lens sets? Anamorphic prisms?
Are they broadband? Coated for a specific wavelength?

Need details!

Last edited by ARG; 10-02-2014 at 01:44 AM.
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Old 10-02-2014, 01:45 AM #5
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Default Re: Corrective Optics

These are more than likely going to be garbage! corrective optics are not cheap and there is a reason for that. Please do some more research and if some thing positive can be done then great good for you! But make sure what your getting is not some cheap stuff or your laser could be ruined
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Old 10-02-2014, 02:11 AM #6
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Default Re: Corrective Optics

What kind of corrective optics are you looking at/for? The OP otherwise doesn't make any sense.
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Old 10-02-2014, 02:12 AM #7
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Default Re: Corrective Optics

What?

Quote:
Originally Posted by vortish
These are more than likely going to be garbage!
That seems a bit premature.

Quote:
corrective optics are not cheap and there is a reason for that.
They're not cheap when you buy from Thorlabs. I wonder what their markup is. Acylindricals might be pricy, but regular cylindricals would be cheaper. And the G2 lens is a precision lens but doesn't cost that much.

Quote:
Please do some more research and if some thing positive can be done then great good for you! But make sure what your getting is not some cheap stuff or your laser could be ruined
This is just condescending. I think we should give him the benefit of the doubt and assume that he isn't going to try selling us some optics that are going to melt and ruin our lasers. We need to see the specs for the optics first, then we can decide if they're good or not
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Old 10-02-2014, 02:42 AM #8
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Default Re: Corrective Optics

Quote:
Originally Posted by Marco Polo View Post
What?



That seems a bit premature.



They're not cheap when you buy from Thorlabs. I wonder what their markup is. Acylindricals might be pricy, but regular cylindricals would be cheaper. And the G2 lens is a precision lens but doesn't cost that much.



This is just condescending. I think we should give him the benefit of the doubt and assume that he isn't going to try selling us some optics that are going to melt and ruin our lasers. We need to see the specs for the optics first, then we can decide if they're good or not
Exactly. Dr lava sold his for what 40 bucks? There's a guy (Dave I believe) on pl that sells them too but I don't know the price.
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Old 10-02-2014, 06:06 AM #9
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Default Re: Corrective Optics

glossing over all that..... I did get quotes for acylinder lens pairs and they were def a bit to pricey.
the lenses i'm referring to are standard cylinder lens pairs made from bk7 glass with a broadband coating.

main thing is I know the cost can be brought down on these for everyone. I myself need at least 3 sets and I know i'll need more in the near future.
i'm sure there are others out there like me.
Now with the s1 lenses hitting near g9 lens specs I think its time we had a corrective lens setup for our high powered diodes at a similar cost (ie $12 a lens)


for the record vortish, i've never heard of corrective optics "ruining our lasers" even if they were for some reason made from plastic haha.
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Old 10-02-2014, 06:13 AM #10
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Default Re: Corrective Optics

I would be interested, but again we need details. Even some "cheap" sets for reds would be nice. With the low cost of those diodes, adding some correction wouldn't be that much of an additional cost.
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Old 10-02-2014, 07:53 AM #11
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Default Re: Corrective Optics

Quote:
Originally Posted by Bionic-Badger View Post
I would be interested, but again we need details. Even some "cheap" sets for reds would be nice. With the low cost of those diodes, adding some correction wouldn't be that much of an additional cost.
what other details do you need?
i'm not necessarily saying my source is the one we should go with, just looking for a consistent and inexpensive supply!
-Nick
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Old 10-02-2014, 10:02 PM #12
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Default Re: Corrective Optics

I'd only be interested if it was a simple solution for the 638nm beams. By simple I mean something that won't take 5 hours and steady hands to align and that won't need a custom machined holder (of course a holder will be needed, but IMHO it should be included).
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Old 10-03-2014, 01:58 AM #13
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Default Re: Corrective Optics

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Quote:
Originally Posted by Atomicrox View Post
I'd only be interested if it was a simple solution for the 638nm beams. By simple I mean something that won't take 5 hours and steady hands to align and that won't need a custom machined holder (of course a holder will be needed, but IMHO it should be included).
Well.....these are some steep requirements ! The Mitsui P73 can be corrected, both in a hand held, see

Now Completed Optically Corrected P73 HH Design

and of course in a lab style.

I have done both, but the optical demands are the same;
1) Optimal positioning (centering) of the LD to the Collimation lens.
2) Mounting the cylindrical lenses with the most critical dimension being between the two lenses.

The complete correction of the P73 (638nm beams) is accomplished only when these two issues are addressed !

How one would accomplish these demands in a handheld format, other than the Dragon's Head design, I have no idea ! ...although there must be other ways ??

SOoooo....what is the end goal here ?? I assume we are addressing a hand held unit only. Really, the simplest and least expensive way I can imagine is the Dragon Head design. Perhaps, I am lacking imagination !! ?? Dunno

I suppose a single unit could be designed which would accomplish both demands 1 and 2 listed above !

But, what would this design fit into ? What would be the host ? It sure would be a custom design ! Simple ?? NO !! If the design is very good, alignment could and should be relatively easy. Not cheap, but not too expensive !
I suppose cost is relative !

And, I would speculate that the demand for such a unit would be limited. Thought's anyone ??????
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Old 10-03-2014, 02:47 AM #14
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Default Re: Corrective Optics

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Originally Posted by nkgamer1990 View Post
what other details do you need?
i'm not necessarily saying my source is the one we should go with, just looking for a consistent and inexpensive supply!
-Nick
Pics would be nice. Also spec sheets or something. We can't just invest in an idea
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Old 10-03-2014, 04:31 AM #15
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Default Re: Corrective Optics

I agree, a spec sheet is needed. i'll follow up with the supplier.
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Old 10-03-2014, 05:20 AM #16
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Default Re: Corrective Optics

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Originally Posted by nkgamer1990 View Post
I agree, a spec sheet is needed. i'll follow up with the supplier.
Cool. See if you can get some pics too
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