*445nm lasers* !GB-Closed!

[Tech_Junkie]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

I have a high powered one going in my ray gun, and a lowered power one going in my visual effects projector. I dont really have a need for a 1 watt pointer. It would be cool, but with all the precautions not much fun.

 

[Bionic-Badger]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

Hmm thanks for the tips. I don't think I can do all of those (namely remote shutoff and aperture shutter), but I still plan to make mine safer than a normal click-on laser pointer. Instead of a 3 second delay, would a low power-transitioning to full power sorta thing work just as well? Seems to me a full off to on in 3 seconds would be more misleading to someone handling it.

Well, the power indicator is for informing the operator if the laser is operational, not whether there's a beam coming out the end. It may be hard or dangerous to see the beam/dot or--as has happened to me before--the shutter might even be closed. Also, some lasers simply don't have safe "low power" thresholds, or they're very hard to achieve. I believe the 445nm laser diodes, for example, put out about 200mW at the lasing threshold.

You can implement a power delay circuit much like this. Some people just don't like having the power-on delay at all though. I like them though, and will probably add them to future builds since I'm quite wary of accidental power-ons, for example when inserting the battery and the key-cap makes a momentary connection.

 

[Pontiacg5]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

Until you sell it to a newbie that looks down the aperture because the laser does not turn on as soon as you press the button

 

[rev0]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

I'll be implementing most of the features with a microcontroller, possibly including the boost driver, I haven't decided on that yet, so a delay is no problem. I'm planning on putting a battery indicator and a few selectable power outputs as well, since it seems that that's something that none of these lasers has yet.

 

[TheGr8Revealing]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

Will there be a delay in the shipment of batches? I am only asking because I expressed interest early, paid early, and yet I was thrown in the last batch which hasnt even filled yet.

Just curious.

 

[kiyoukan]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

everything is fine i some how had your name under the arrays section of ordering and when i was double checking things i noticed it.
all batches are filled but i left some wiggle room in batch three in case something goes wrong.
the arrays are all being ordered at once so it does not matter if your in 1 or 3 if andy con fails to pay by 3pm thursday i will go on without him.

 

[HaloBlu]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

Also, some lasers simply don't have safe "low power" thresholds, or they're very hard to achieve. I believe the 445nm laser diodes, for example, put out about 200mW at the lasing threshold.

They do much less around the threshold actually. You can get ~30mW. Using a metal aperture for a rounder, cleaner beam might cut a little bit more power as well. Its even single mode below 50mW.
30mW reflected off polished metal will still be a hazard yes but not like 200mW.

Gee I hope Andy shows up. I'll likely even be able to pay before he pops up. Would be a shame to lose those 2 arrays of his.

@rev0 Which microcontroller? I've wanted to do a battery level indicator & variable power ever since I first landed here. One of these days perhaps I will actually put the time aside to do it!

 

[20vturbo]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

I'm interested in 2 diodes. Sent PM yesterday but no response, can I still get in on this? Or did i miss the boat?

 

[liveforphysics]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

I re-read over the thread, and maybe I just missed where it states it, but these are definately the A-140 projector light engines you are getting right? I ask because it seems to be a half-watt or more of output capability and a substantial efficiency difference between the two. This is after looking at current/output graphs showing both A-140 and A-130 diodes. Likely, the lower sales volume a-140 rated for 2,500lumens gets the premium binned diodes, and the 2,000 lumen a-130 uses standard bin diodes.

I just want to confirm these are for the A-140 and not the A-130, because otherwise I would rather just buy a whole A-140 projector for $850, and somebody else is welcome to have the all read paid in full array I bought shipped to them at a reduced cost, like $525. Since my goal is to combine 8 diodes for higher output, it would be very foolish not to start from the best diodes available. For folks making <1watt lasers, it doesn't seem it would matter.

 

[laser_freak]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

It's unclear if they're a140 or a130. I thought I read somewhere in this thread (although I can't find the post now) that they are a130. kiyoukan, if can get the a140 arrays for the same price you should order them instead of the a130.

 

[IntraWinding]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

Some good photos of the diode arrays on this ebay auction page, particularly two shots of the whole array fired up!
>Click Here< :drool:

 

[Tech_Junkie]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

Its only $550 an array, and $35 a diode. I wouldn't expect 140 arrays for that price. But thats just me.

 

[laser_freak]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

According to electron they're the same price, although the price electron was quoted was much higher than kiyoukan is getting them for.

XJ-A130 Laser Array part # 10365772 2,000 Lumens MSRP $1,280.50

XJ-A140 Laser Array part # 10365773 2,500 Lumens MSRP $1,280.50

 

[electron]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

If you look at post # 174 you'll see they're are the A130 Array, I made a post # 290 with the Casio part #'s for both the A130 & A140, MSRP they are the same, BUT I doubt at wholesale level they are; but then again I don't know that for sure.

I thought it would have been worth exploring since they haven't been ordered yet, and at the time of my posting I thought the price info could still be gotten before the order was placed, However there was never a reply back to it.

 

[boosted_4cyl]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

can i pay for my single diode on your site? i can only see the whole array

 

[liveforphysics]

Re: *445nm lasers* !arrays 550$ and diodes 35$!

@ kiyoukan I had no idea you had trouble finding the Casio part # for the Laser Array, wish I knew, I could have helped you with that; finding those numbers is easy as pie.

I have the full parts manuals for them, and it's a well known national parts center I have purchased from many times over.

I was wondering what Array you were actually going to get, not sure if at the wholesale level there is any price difference; but at MSRP there is not, wholesale can be very different though. So if the XJ-A130 & XJ-A140 Array's cost the same, might be worth it to get the XJ-A140 for some binned? Laser Diodes.

While not conclusive yet, I've been following some of the tests and reading on PL, etc and I thought that Lasers from the XJ-A140 Array put out more power.

As others have said I doubt they made a different diode for it, but the Laser Array part numbers are different.

I haven't been following this thread everyday but I just read you are going with the XJ-A130 Array, I'm sure no matter which one you get, everyone will be happy with them.

Just in case here's both of the part numbers for you;

XJ-A130 Laser Array part # 10365772 2,000 Lumens MSRP $1,280.50

XJ-A140 Laser Array part # 10365773 2,500 Lumens MSRP $1,280.50


Yea they really don't want the public to buy those do they?

kiyoukan- I wana see that number "3" on the end of the part number on the package for this array. Make sure that happens.