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05-19-2015, 04:16 AM #1
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,165 Rep Power: 1048339
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The cost of having a lens AR coated \$\$\$

I asked for a quote to have two 50mm diameter lenses AR coated and was given quote of 825.00 dollars from evapcoat.com - They can coat up to 25 pieces at a time to reduce the per piece cost. Does anyone know of anyone who can do AR coating for small lots at a much better price anywhere?

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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

05-19-2015, 09:53 AM #2
 Class 4 Laser Join Date: Oct 2007 Location: Oregon, USA Posts: 5,478 Rep Power: 18104
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Re: The cost of having a lens AR coated \$\$\$

That's actually not all that bad a price for 25-pieces. Too bad there aren't any combined bulk AR-coating sites like there are for PCBs.

You might see if your local eyeglass company could put an AR coating on your lenses. I don't know how much they'd charge for that though.
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05-19-2015, 04:38 PM #3
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,165 Rep Power: 1048339
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Re: The cost of having a lens AR coated \$\$\$

Thanks, that's an idea to try. They had quoted me over 1600 for a different type of coating they offered I had interest in too. I have no idea why so expensive, is their much labor involved or just the process is expensive?
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

05-19-2015, 11:19 PM #4
 Class 2M Laser Join Date: Dec 2014 Location: USA, OR Posts: 978 Rep Power: 36866
H2Oxide
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Re: The cost of having a lens AR coated \$\$\$

Quote:
 Originally Posted by Alaskan Thanks, that's an idea to try. They had quoted me over 1600 for a different type of coating they offered I had interest in too. I have no idea why so expensive, is their much labor involved or just the process is expensive?
If I had to guess it would be to cover the cost of the machines. They're massive, and only serve one purpose. Plus, doing single orders eats up time they could be using making standard/mass produced lenses. Then take all of the above reasons and add it to this.

Quote:
 Originally Posted by Bionic-Badger That's actually not all that bad a price for 25-pieces. Too bad there aren't any combined bulk AR-coating sites like there are for PCBs. You might see if your local eyeglass company could put an AR coating on your lenses. I don't know how much they'd charge for that though.
Probably not much, if it were an eyeglass coating. My father was an optometrist and he could send in lenses and get them AR coated for \$50. Labs like that usually only have a few coatings though. Worth a shot though.
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Last edited by H2Oxide; 05-19-2015 at 11:25 PM.

05-19-2015, 11:35 PM #5
 Class 3B Laser Join Date: May 2011 Posts: 3,564 Rep Power: 1002357
Encap
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Re: The cost of having a lens AR coated \$\$\$

LensCrafers has onsite AR coating machines now in many locations see: Eyeglass Lenses: Prescription Lenses Made in at In-Store Lab at LensCrafters

They say: "LensCrafters is always developing ways to help you see clearer, farther, and in brighter color. The newest addition to our labs is an Anti-Reflective coating machine. It’s one more feature we can offer our customers in our One Hour service."

I would guess not too expensive and doing just 2 pieces-- is what they normally do so...

Last edited by Encap; 05-20-2015 at 01:17 AM.

05-20-2015, 01:14 AM #6
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,165 Rep Power: 1048339
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Re: The cost of having a lens AR coated \$\$\$

For visible spectrum coating that may work for me, if they will do that, I'm betting they will and will report back

For the IR spectrum I also wanted, of course, they won't be doing that kind of coating, for that lens I better just find one already coated.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

05-29-2015, 03:34 PM #7
 Class 3R Laser Join Date: Jun 2007 Posts: 1,759 Rep Power: 181117
steve001
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Re: The cost of having a lens AR coated \$\$\$

Quote:
 Originally Posted by Alaskan I asked for a quote to have two 50mm diameter lenses AR coated and was given quote of 825.00 dollars from evapcoat.com - They can coat up to 25 pieces at a time to reduce the per piece cost. Does anyone know of anyone who can do AR coating for small lots at a much better price anywhere?
Give a call to Edmund Optics. If you aren't looking for a strange wavelength then one of their off the shelf AR coated lenses might do.

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