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New collimator lens for Blue MM diodes




Alaskan

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It's the same lens idea trussmonkey had posted a thread about, in essence it is a single piece cylinder pair.
 

BowtieGuy

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Agreed, testing with some of the diodes we use would be nice.
Hopefully, these won't cost an arm and a leg!
 

diachi

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It's the same lens idea trussmonkey had posted a thread about, in essence it is a single piece cylinder pair.

Yup, which means our usual lens fittings would be no use. Cylinder pairs don't work well with the lenses off axis unlike our usual choice of lenses, they'd need to be aligned and fixed in place.
 

BobMc

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Been looking at mirrors and lens, interesting???

Thanks for posting. :)
 

Alaskan

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I like it, +rep for bring the info here when I can. If these were larger would be better, they are only 2.5 mm on a side, very tiny. Would be awesome if made 6.3 mm diameter and placed into a long lens holder like we use in front of a G2 etc., Even better, a two section threaded lens holder, one end threaded to screw into our Axiz modules, the other end a few mm wider to allow more expansion of the slow axis.
 
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diachi

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I like it, +rep for bring the info here when I can. If these were larger would be better, they are only 2.5 mm on a side, very tiny. Would be awesome if made 6.3 mm diameter and placed into a long lens holder like we use in front of a G2 etc., Even better, a two section threaded lens holder, one end threaded to screw into our Axiz modules, the other end a few mm wider to allow more expansion of the slow axis.

As I said above, you'd need to fix the lens in place. Any sort of rotation around the axis of the diodes output is going to distort the beam.

Maybe someone can come up with a new module the a mount specifically for these lenses? :D
 

Alaskan

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I'm thinking about trying to find someone to build something like that, we really need it. Due to the quote missing a second thought I had edited in later before seeing your post, i had to cut this out of my earlier post and paste here, i think this is what you were after, agreed:

Edit: (e: the second section with these in it would need to have a tight slip ring in the tube coupling to allow it to rotate, otherwise the axis wouldn't line up with the diode when focusing).

A special lens assembly like that probably won't be affordable for our hobbyist community, but would sure like to see it be an option for us.
 
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ArcticDude

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As I said above, you'd need to fix the lens in place. Any sort of rotation around the axis of the diodes output is going to distort the beam.

Maybe someone can come up with a new module the a mount specifically for these lenses? :D
That's what i was thinking. Small MM diode with corrective optics / similar than G-ball lens assembly.
 
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Alaskan

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That would be inexpensive to mass produce compared to my earlier idea, although they need to collimate it first, would be a tube about twice as long as their current gball assembly, i think. I hope the manufacturers do that someday, if the power keeps going up on our diodes with the emitters getting wider, such would probably be more likely to come about.
 

ArcticDude

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That would be inexpensive to mass produce compared to my earlier idea, although they need to collimate it first, would be a tube about twice as long as their current gball assembly, i think. I hope the manufacturers do that someday, if the power keeps going up on our diodes with the emitters getting wider, such would probably be more likely to come about.
Yes, I really hope they do. But this is how they could tackle that awfull divergence. (in projectors e.g)
 

logsquared

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I would love to get my hands on one of these lenses. Looks like further correction would be needed to get a good beam. Probably just telescope made with spherical lenses after the collimator.

Building a mount would be pretty easy I think.
 

ArcticDude

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I would love to get my hands on one of these lenses. Looks like further correction would be needed to get a good beam. Probably just telescope made with spherical lenses after the collimator.

Building a mount would be pretty easy I think.
It is the collimator ^^^^
 




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