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I am a time traveler once a day, from many years ago. ;) but only short travels from like 0:00AM to 9:00AM LOL 1. Death is NOT time travel since you can't wake up from it, at least I don't know anybody who has done it yet. 2. Being hit by a rock in the head may or may not be a time travel, (see...

Traveling to the future is just a fact in particle accelerators, if you can travel very near the speed of light, your appear slowed down for the people that keeps static. Some particles that typically disintegrates in nanosecs, turn to live 10 or more times at near speed of light. However the...

Pretty good job. Perhaps heatsinking could be improved, at 1W and using almost also the aixiz module and a little alum, may be you have to keep short duty cycles. If you can measure length, threads, etc. here are fantastic machinists (not me) that can help you. just... simply ask. BTW what...

Hi, I think I should show you this new project. I had around an old DX dilda and some time and thinking about it... why not? So I disassembled it and put a rkcstr at 430ma, for helping heatsinking I cutted a little alum heatshink (and it helps a lot!) Lens is an Aixiz 445, it uses two LiIon CR2...

Don't doubt it. The wavelength is not changing. IMHO for sure is a optical, eye-related effect that has something to do with POV (Persistence Of Vision) or perhaps with iris opening. I mean, If you look at the single dot, all the luminance is going through you iris making it to close for...

Congrats, nice build. Glad your diode didn't fry ;) Are you using a Flexdrive or a microboost ? With that copper HS may be you could grow up the ma's keeping a shorter duty cycle. About burning... you have to choose... But I think that at 850ma it will put more like ~700ma. That is a pretty...

I guess if works with laser pulses. Pulse on, your iris closes, pulse off your iris opens, it should be very disgusting to see this if you are aiming some type of gun.

Well, I have several ATX power supplies modded for my needs, that 5v/12v lines are quite practical. To start it out simply shortcircuit the GREEN and any black wire in the mobo connector. thanks to this I have supressed a lot of those little power supplies that come with almost any electronic...

Floaters are also particles suspended inside the eye, they can come from microscopic bleedings from those little capilars inside the eye. Time clears them, while more are produced. Some people has more than others, but to have some is pretty normal. Hypertension is a common, well known cause of...

Nice build, I like very much the idea of a metal case. Just one thing... It seems like there are little contact between aixiz module & alum heatsink, lot of the aixiz module is exposed not being heatsinked, does this feel hot to finger? Remember, we don't like very hot things near the diode.

Yep, I had taken it into consideration, for this build I was of course thinking in a low powered one. Outputting ~200mw of blue from a lil' dorcy is enough for me. Don't make mistake, I use my ~1W labby at home, it is really dangerous to take it out, but sometimes I love to show my friends my...

For the 445 I made a LM317 based one (for a labby) but i am going to a LM350K for more stability/heatsinking. Used the 350ma pill on a handheld led, caps used were normal 16v/10microf I had around. Never had a issue, the cap is for the possible spikes, never a bad idea. For the 1A pill I used...

I have used this: DealExtreme: $16.58 AMC7135 1050mA Regulated Circuit Board for DIY Flashlights 10-Pack and this: DealExtreme: $16.68 Quality AMC7135 350mA Regulated Circuit Board for DIY Flashlights 20-Pack and for boost: DealExtreme: $6.46 AA and 14500 Circuit Board for 3.7V LED Emitters...

Hehe, I usually put my finger on and then switch on the circuit for some seconds, never had troubles detecting the hot chip with this advanced system :crackup: edit: For sure you have done that sometime, just kidding, no offence...

MMM, not sure about that... Think about a 18650 2600mah (I have some that renders 2450mah) and these are about 2x the size of a 16340, so we could expect to have ~1200mah on it. BTW thinking about re-modding my 405nm-dorcy to a 445nm-dorcy :whistle:

Those 18650 batts can deliver easily 3 or 4 amps. Reading what you say 4.0v full charged and after that flashing and taking hour to recharge again... Sincerely I think that what we have here is a malfunctioning battery protection circuit, try another batt if you can. And remember, some...

Nice build, I like very much the dorcy as a host, it has a futuristic looking & good grip. With a 445nm LD inside it'll be a little wonder ;) You say 3.6v 1300mah CR123A? Where did you find it? The greater I have is 880mah.

My two diodes have the same ripples more or less, this is pretty normal, I have seen this artifacts even in single mode diodes, I always thought it was normal. If there had been COD probably you will see holes in the radiation pattern.

@PBD WOW, amazing shots. The best I have ever seen from a laser diode. Now I have a better understanding on how it works. Thank to your pictures and your explanations. I was trying to use my microscope to take pictures of a LD, but your results are awesome. So at this moment I am not going to...

May it be that the first rkcstr setup got really hot and malfunctioned at 423ma ? Check that rkcstr driver output. For sure you don't want to ruin another diode.