12x diodes from Sanyo and Nichia

wow!!! the 12x is sooo powerful it works w/out batteries or a driver.:na:

Hey, I've seen that diode before! It looks just like this one I found in my CD player!

chipdouglas said:

@pullbangdead- i know. i thought my :thinking: and my would have given that away. but at least you arent one of those guys that puts other people down no matter how dumb the question might be.!

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Ahh, I gotcha. Your sarcasm faces are duly noted. Should've caught the sarcasm anyway, but I'm having a slow day in general. Wednesday is just not working for me this week.

I know what you mean...

When these come out, i will be willing to ace the money for a drive, and test it UP to 350mA and if it hold steady there... we'l see...

But with DL.com taking off here quickly, i should be able to be one of the first to try it out. we need to document EVERYTHING, just like we did in daguins sticky.

Cept 12x style!

Ughhh I hope they come soon I haven't seen any news as of late

The 8x is still considered "new". I wouldn't look for the 12x till early next year...

SC is right, they don't expect the diodes to be fully ready until the end of this year. I would be surprised if the 12X drives came out by March or April!

Still if they're coming out within a year I'd be happy. So what do you think expected mW rating would be with a lens from Jayrob? at a safe voltage rating

themandalorian said:

Still if they're coming out within a year I'd be happy. So what do you think expected mW rating would be with a lens from Jayrob? at a safe voltage rating

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This is what IgorT told me:

"I always said on the forum, that diodes can be pushed to their pulsed rating, but not above....
...8x diodes are 150mW CW / 300mW Pulsed, 10x will probably be 175mW CW / 350mW Pulsed. We know for a fact, that a 12x is 200mW CW / 450mW Pulsed. The first two are guesses, the last is a fact."

Taking into account a cautious increment of 25%, this means that a 12x would be able to supply a reasonable safe Power Output of about 560mW....:evil:

FrancoRob said:

This is what IgorT told me:

"I always said on the forum, that diodes can be pushed to their pulsed rating, but not above....
...8x diodes are 150mW CW / 300mW Pulsed, 10x will probably be 175mW CW / 350mW Pulsed. We know for a fact, that a 12x is 200mW CW / 450mW Pulsed. The first two are guesses, the last is a fact."

Taking into account a cautious increment of 25%, this means that a 12x would be able to supply a reasonable safe Power Output of about 560mW....:evil:

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I always wondered why there weren't any pulsed drivers here on LPF.

IF we get new drivers.. (Larry FDW, and Dr Lava are supposedly working on these) I can only guess what the articles above report about them. ~450mW... that power rating is most likely one without a lens at all. The power that comes straight from the dye... so I figure it can be much higher than that.

nikokapo said:

I always wondered why there weren't any pulsed drivers here on LPF.

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Just wondering ..... but, probably, cause they don't worth the efforts, for the same amount of delivered power.

I mean, a "pulsed" driver, can give to the diode the double (or more, depend from the duty cycle you choose) of the current, and you can take the double of the power, but just for the half of the duty cycle, so the final energy delivered to the target point is the same.

Basically, is the same principle that is used for led's, where they drive them at the double (or more) of the power for 50% duty cycle, and the retinal persistence of our eyes give you the impression that they emit more light ..... but, if i emit , as example, 1 watt CW (that means 1 watt/second energy), and i double the power and half the cycle, like 2 Watt for half second, then half second off, i still have 1 watt/second energy at target point ..... i tried, using a high power led, rated for 1 A CW, drived it with a mosfet switch at 10A for 1 mS, with 9 mS off time (that is a 10% duty cycle), and it looks at least 4 or 5 times more bright at bare eyes (but on a camera, no difference, ccd's have not the same persistence effect of our retina) ..... but the current total was still 1A, and the total energy was still the same, only the impression on the eyes, is that the led is much more bright

btw, this is the same reason for which i don't trust to these blue (not blu-rays) lasers, sold at certain declared power, and having pulsed drivers (you can see if a driver is pulsed moving the dot quickly on a surface, if you see it as a -------- line, instead a continuous line, the driver is pulsed ..... and, maybe, the power is less than the declared )

Meatball said:

IF we get new drivers.. (Larry FDW, and Dr Lava are supposedly working on these) I can only guess what the articles above report about them. ~450mW... that power rating is most likely one without a lens at all. The power that comes straight from the dye... so I figure it can be much higher than that.

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You're right, IgorT data concern RAW output, before any lens.

I have a 660nm that is out of one of the early 6x sleds...it is connected to a flex V4
also one of the first out.

It has a strange frequency sound when adjusted to burn right at the focal point you can hear it load up...it also when moving across a surface dose the ------.

I possible could of somehow damaged the driver, but I doubt it. I think it is a component flaw... fun little unit.

jander6442 said:

I have a 660nm that is out of one of the early 6x sleds...it is connected to a flex V4
also one of the first out.

It has a strange frequency sound when adjusted to burn right at the focal point you can hear it load up...it also when moving across a surface dose the ------.

I possible could of somehow damaged the driver, but I doubt it. I think it is a component flaw... fun little unit.

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Definitely sounds like a faulty driver to me... The sound you're hearing is from the inductor on the driver, oscillating at a high frequency. The "-----" in your beam is the laser being switched on and off rapidly. It's hard to tell if that's going to kill your laser or not without access to an oscilloscope, but any time that's happened to me the laser didn't last long.