My Monster 6+ watt Laser Build Has Started !

RedCowboy said:

Beam mask, ok cool.

I had seen Planters using razor blades attached by magnets to bolt in blocks in his optical train to clean up overspray of mitsu reds, I think he called that spacial filtering, but I see that it's more than being internal or external now.

Beam mask sounds right and is easier to understand. :beer:

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diachi said:

Yeah, the razor blade method is one way to do it, although a proper pinhole with X/Y mounts would be easier to work with and would likely produce better results. Some people have been using the lasers they are trying to correct to punch their own pinholes, which then correct the beam.

Here's an RGB module using achromatic lenses and a pinhole in an X/Y mount to spatially filter all three lasers at once. You can see where the achromatic lens focuses the combined beams into the pinhole, then the second achromatic lens re-collimates the beams. This also allows you to do expansion and spatial filtering in one "stage". Really just a Keplerian Telescope and a pinhole.

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Accutronitis said:

Wow that is very impressive hardware ! I have a real passion for anything very high quality and ultra high precision and that's it right there !

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diachi said:

Yeah likewise, especially when you can see that some thought went into the design. Nothing better than a high quality, well executed design. :beer:

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diachi said:

Yeah, the razor blade method is one way to do it, although a proper pinhole with X/Y mounts would be easier to work with and would likely produce better results. Some people have been using the lasers they are trying to correct to punch their own pinholes, which then correct the beam.

Here's an RGB module using achromatic lenses and a pinhole in an X/Y mount to spatially filter all three lasers at once. You can see where the achromatic lens focuses the combined beams into the pinhole, then the second achromatic lens re-collimates the beams. This also allows you to do expansion and spatial filtering in one "stage". Really just a Keplerian Telescope and a pinhole.

Click to expand...

HydroSean said:

jesus, how much are one of those? their website is blocked on my work comp

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RedCowboy said:

Yea, but will you have to wait until the 1st of the month. :crackup:

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RedCowboy said:

I have squandered a fortune when I had my own business and things were good, I thought it would never end, but I can laugh at myself and I know how to treat people the way I want to be treated, so don't sweat it man, was just a bit of levity.

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RedCowboy said:

Check the tracking, make sure they don't show it as delivered, I have had things delivered to a street number the same as mine but on another street.

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