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- Jun 22, 2016
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Brilliant OPSL from Osram!
How in the Earth I have missed this thread
How in the Earth I have missed this thread
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I love the low divergence
Glad to see you back here, it was greatThanks guys,
It is nice to be back here with friends. Diachi, I didn't completely explain myself regarding why I'm saying they can produce such low divergence, left out the rest of the story: It is the potential for uber low divergence with a relatively small collimation lens I'm excited about, expanding that one tenth of a millimeter beam diameter output with as low as 4 mRad divergence to only 1 inch, I will be able to have a pointer with far lower divergence than anything I've worked with to date with that diameter of a collimation lens.
The units I ordered already have an expander lens attached to them, did yours have that? If it did, would be nice to see a picture of what you initially received. I ordered quite a few of these, hoping some approach the low end of their possible initial divergence, but even if towards the higher end of 8 mRad, starting out with that small of a beam diameter can produce uber low divergence with a relatively small diameter collimation lens, I've been needing to use lenses which are several inches in diameter to do the same thing in the past.
Example: 20x expansion to a diameter of only 2 millimeters might be able to produce less than .5 mRad divergence, that's incredible. Using just a standard 6 mm diameter collimation lens, after expansion you can probably achieve under .25 mRad and only use 2/3 of the lens aperture.
Nice thread, I've not been back to the forum to look around for months until tonight, finding this unit for sale on ebay and google searching for more information lead me to this thread. Good work.
Thanks Trinh, still haven't put together the hosts I bought from you for the dual 450 nm pointer, has anyone?
Back on topic: I bought a pack of these little units today, should have them in a week to ten days.
Where are you getting them shipped to? If you get stuff in Pakistan in a week to ten days that is amazing. Are you still keeping a home in Alaska? This seems to be the wrong time of the year to be there.