edit: this will be wrapping up in the next few days. If you want some, or to change your order, now is the time to make contact!

The test units from the final manufacturer have arrived and check out good. They are broadband coated < 0.5% reflectivity. The final total losses including bk7 glass are 3%, vs an estimated 10% for prisms. <0.9 mrad emission is achievable with these (after an ashperic collimator) used to expand the slow axis of 445nm diodes and other multimode diodes with similar emitters, incl. the 500mW reds.

GET LENSES HERE

Beam at 56 feet (17 meters)

dimensions: 12hx9wx3t, 8hx3wx2.5t (mm)

Material: BK7

AR Coating Range: 350-700nm

Surface Quality: 60-40 Scratch/Dig

Surface accuracy: λ/2 curved, λ/4 flat

Set-up distance between lenses: 20mm

To take a note from p1t8ull,

Features compared to anamorphic prisms:

Fixed magnification setup

Less Power loss compared with prisms

Same space taken up as prisms

Beam(s) stay centered after correction optics, offset for prisms

"I can confirm that both beam correcting methods are a bit fiddly to set up, but neither should be beyond the capability for most people here if the basics are correct and time and care is taken."

These are the lenses that will be used in the Blue Lava II kit, please only order from here if you are not getting the kit. These will be ordered along with the kit lenses.

GET LENSES HERE

Paypal instructions:Calculate the total using the above google checkout page, then add 1% to cover the paypal fee difference. Then PM me for the paypal address.

round 1

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Second round

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3rd round

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