the one that DTR has on his site. wups PHAT fingers... 638nm c-mount
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Did anyone use the 538nm 5watt Diode?
the one that DTR has on his site. wups PHAT fingers... 638nm c-mount
Last edited by nuphotonix; 08-13-2013 at 13:15. Reason: mistake
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you must be looking at DTR's website 5 years in the future.
Originally Posted by nuphotonix
suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.
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That's what I was thinking. 538 would be interesting although I would prefer something a little longer. 570ish. Now that I think about it, I don't think you would notice the difference between 532 and 538. My Green-Ne is 543 and it just doesn't look as "green" as 532, but it is still very green.
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Do you mean 650 nm diode? Otherwise I see no 5 W diodes on his website...
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There have been a few portable builds with the 650nm C mount over on LPF. Nothing in a labby or PJ. At least nothing that's been posted about.
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Mn i hate days like today... yes the 650nm 5watt cmount.
I'm thinking about getting one. I think it would be a nice addition to my beam table project & a first intro into c-mount diodes.
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If I had spare $425 laying around .. heh ..
According to a brightness calculator, 650 is 50% as bright as 638 so it'd be about 2.5W comparitively speaking . Which is still pretty cool for a single red diode. Still knd of expensive tho ..
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FYI. These are FACed, but they need to be paired with a decent focal length lens. We've been using a 50mm FLL from ThorLabs. This one here. It works fairly well with these.
Also keep in mind the fact that they need 3A+. It is highly recommended that you give them a soft start. 3-4A+ to these diodes all at once is enough to kill it, or at least do some damage.
Also, these are multimode, not single mode. You're still getting a square with a decent lens. Though it's much better than the bar from a Mit. Still though, not a circle.
Pic from DTR:
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Has anyone calculated the beam divergence for that setup?
Analog modulation (or TTL) would have the capability of ramping the current up from zero to max (set in the driver) in microseconds I believe .. Are you referring to current overshoot?3-4A+ to these diodes all at once is enough to kill it
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