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..So I got this neat red LED from Daguin some time ago. The red one from a projector. Staring at me, teasing me.. I hid it away, it started to haunt me in my dreams! "But", I said, "I cant feed you 8 Amps! Thats ridiculous! Such drivers dont even exist!" Yesterday the LED finally won. Thats the...

EDIT: [from post #10:] The groupbuy will be for the NCSU033B LED, 365nm, 325mw. 99$ if we reach a number of 6 only! ------------------------------------- HERE I was trying to buy some of the new NICHIA high power 365nm LEDs. I am of course talking about the 250mw, 325mw and 950mw output...

I am having a hard time sourcing any of the Nichia 365nm LEDs, be it the "smaller" 325mw or the newer 950mw version. -->Nichia Those are really strong, emit almost no visible light at all, and are far more powerful and efficient than other manufacturers models. Does anyone want to sell one of...

pretty basic question, it seems. i have 11 lenses (9 to 22mm diameter), plano-convex (or slightly concave), convex-convex, convex-concave, concave-concave. pretty much any combination it seems. found in an old scope and an industrial securitycam. i want to try to build a beamexpander from two of...

yesterday i read some post about 635nm diodes and cooling them.. i have those 7mw rated diodes, they go up to 20mW. they will lase at a higher wavelength by then, which kinda makes the whole idea useless.. how about cooling the diode with a TEC? with 2.5V and 80mA the diode generates less than...

hello everyone, theres a thread here about beam expanders in general and details how to built one. with single lenses being relatively cheap, only the engineering and machining is expensive (timewise and moneywise). is there interest to buy a selfmade universal beamexpander? the prices online...

All right, thats enough for my taste. joined 25.09.2009, 40 posts, already -152 points. its more than obvious that he tries hard to ruin topics and threads. he got more than 10 neg rep today alone, thats as many reps as can be seen. his response to his neg reps? "Negative rep for sending me...

class IV blu-ray handhelds are now almost common, with several built and working.. how about a new red diode which would be up to that too? the LOC is around since years, i think its said to be the 16x or 20x LG drive? i got me two LG 22x drives, one is in my computer, the other one is.. toast...

Heya, i just won me a sony dsc-v1 on ebay! :-) yes, its old.. but a good one! why this one? it can do "nightshot"-pics, where it removes the internal IR filter for full IR sensitivity. sounds useful? :-) another nice thing for my laser hobby would be macro photos. ebay has lots of...

Here comes another tutorial, my current laserproject. Since the beginning I was ordering many flashlights from DX, none was really pleasing me. Once I found a good one, ordered 20 pieces, which then were all different and useless.. *sigh* But then I found a nice one! TR-801 14.56$ It uses an...

hey there, it now happened the second time for me that i tried to post something, as always, using the "quick reply" box at the threads end. i got an error message on the next page, saying "token expired". unfortunately i dont remember if it said the same last time, some days ago. i go "back"...

help needed! i filed down the original board from my 80-120mw (?) o-like greenie module. in several steps, checking that everything works. at one point it must have passed away.. must have cut away a via or some connection under the laque that i didnt see or something.. anyway, it was a pain...

so, after some sidenotes about this idea in other threads, i now tried to remove the red LOC diodes wings with apertures. i compared these apertures, all with the exact same aixiz acrylic lens: (virtualvillage, back open) (for comparison) 5 mm, back opened 2 mm, stock 1.5mm "stock aperture...

hello everyone, i plan to build a matched set of red, green and violet pointers. the green bare module (o-like) is too long. so i try to shorten it by changing the optics. i removed the frontal collimating lens, with replacing it with a shorter focusing one i could gain a few mm. not enough.. i...

this topic goes on and on.. here some first-hand experience (from another topic): if asked, i will make pics of this next days. oh, and before anyone starts with "is your eyesight worth only 10$?" well, is it worth only 100$ then? and in what point is "your" or any protective googles...

heya, i got (my first) he-ne recently. fires up nicely, 3mw if i remember correctly. the beam is quite divergent, like an inch after a few meters already (hooray for mixing systems!). its in a metaltube, and i cant easily open it up to reach the tube itself. obviously, my options would be to...

hi everyone, i would like to combine a green (or if necessary other visible color) pilot-laser with a high-power IR module. module one is 808nm and will be between 10 and 30 watts. module two, in a different setup, is either 830 or 930nm (have to look it up, its years old!) and 2 watts. the...

Hello all, i got me a 120-150mw module and three 5mw modules from o-like. I tested them all, and the 120-150mw one seems strongly underpowered. with a thermal head (from die4lasers), no filter or anything in between, and the module almost touching the head, i measured: 5mw1: 33-31 mw @ 300mA...

i plan to build a matched set of pointers in 1xcr123a flashlighthosts. what is the shortest green module available? only the module itself, i would remove the driver and mount it flat between the module and battery. diameter doesnt matter (<17mm). i didnt find any shorter modules than 32mm, all...

so you got a 300mw+ red laser out of a 20$ dvd burner. ever asked yourself, why the heck they have such strong lasers inside? do they even use them to any extent? i wondered too. and, in my past life, i was an IT guy, with pimped up computer and all. i cut me a hole into my case to watch my...