who wants to tame this?

[TechJunkie]

Pointer guys don't care as much about divergence, beam trash, things like that.

This is completely not true. Thats why they do these kinds of tests/reviews on diodes, lab lasers, and pointers. You may have to dig though some trash, but you'd be surprised at the wealth of knowledge there. There are some very smart people on that forum, and I dont throw the word smart around lightly. Your forum is projector specific. LPF is more wavelength, power, testing, and review orientated. A lot of testing done on LPF has more than befitted this forum, and continues to this very day, obviously. You cant generalize LPF, just like you cant generalize PL. They both benefit each other. BTW, they are all over EVERY new diode that comes out.

The beam is easily corrected, please show us your lens and correction lens info, or is this your speculation?

I agree with ya actually did chip in, but it isn't a murder fund just informational diode won't be killed.

Also have been hugely surprised by the knowledge I have found over there. My meter will now have logging thanks to delta ISIS and peregrine.

I meant its easier to correct a beam in a projector than a pointer. After this diode is measured for current, and power, it will be sent to another member for optics testing. So stay tuned.

We say murder fund because we used to see how far the diode could be pushed before COD. Its just a term thats still used. Now they test it till there is a knee bend in the graph, and/or the diode starts to drop in efficiency.

Last thing I'll post here is: If it was me, and I had the resources, I'd couldn't wait to throw this diode in a projector to see what it was capable of. But, as Hemlock Mike has told me, "in the laser hobby there are innovators, and appliance operators. Which one are you?"

Keep an eye on this thread *Wink* http://laserpointerforums.com/f55/gb...way-86766.html

[absolom7691]

There are some very smart people on that forum...

I have no doubt and I am in no way bashing them.

Your forum is projector specific. LPF is more wavelength, power, testing, and review orientated.

You need to have a gander at the mitsu red grail thread or any of Planters many videos about temperature/wavelength shift. You see that we do a great deal of testing here.

They both benefit each other.

Absolutely and I hope they do test this and I hope the beam specs are fantastic. I really mean that.

I meant its easier to correct a beam in a projector than a pointer.

Too much correction starts becoming impracticle in projector. Watt for watt, these bare diodes are about $100 more than a DPSS. Once you start adding in beam correction, you lose power and the price per watt starts going up, not to mention the alignment issues which is not acceptable in a projector. Then add in the price of correction optics and mounts. I am not trying to citicize what you're saying and I think it is awesome that you have a great enthusiasm for this new development. I am just saying that these are a few of the reasons we are not jumping on this right away. When the price comes down a bit, you will see a lot more activity, I assure you.

Keep an eye on this thread *Wink* http://laserpointerforums.com/f55/gb...way-86766.html

Absolutely. I am curious, as well, if these are even worth half the price that they are selling for right now. This could be a very good thing or a clean-up nightmare. Hopefully not the latter!

[absolom7691]

To add, the reason why 445nm was such a huge deal was because there was no big blue outside of exotic DPSS systems or ion. the Mitsu red was a big deal too because there was no red out there that had big power without stacking 10's of diodes. We have big power green. It isn't the best but it is damn good. That is another reason why we aren't jumping on this as vehemently.

[planters]

TJ,

I respect your enthusiasm and I will be watching what is learned over at LPF. I follow that site, but I participate less than here. My first projector (presented here had over 40 diodes) and the LN laser produces over 3W of 607nm light. If you come to the LEM in January, Krazer might show you the ytterbium laser that is used to produce ATTOSECOND X-rays and I am not the only one on PL that can explain how this works.

These two sites have a different emphasis, but there is a lot of cross over. One of the aspects that I like about PL is that there are several related areas such as the scanning systems and the environmental systems ie the hazers, screens and scrims. There is the software and the visual art of the shows that these projectors are displaying. You're into music and art. There is some fantastic talent here that I can only admire and will never achieve myself (ya, I've tried...gag).

As the people over at LPF build knowledge about these new diodes we'll be watching (and contributing). Meanwhile, we will continue to work on faster scanners, temperature control, new colors with raman and praseodymium and CNC machining and even non-coherent light sources. It's all fun.

[mixedgas]

I learned long ago not to overdrive laser diodes. I'm always trying for reliability. So I'm not too keen on spending 1000$ to push something hard.
I'm more interested in the correction optics anyways. Yes, this is a nice wavelength, but until I'm sure I can source them in bulk, and at one half that price or less, I'm not interested. DPSS still has value. An ideal projector will have two green wavelengths anyways.

Manufacturers spec diode current for lifetime maximization, pushing to the "Tickle the dragon point" means I risk having a laser show running at say, my Church, and loosing a wavelength means I might as well stop the show. I can reconfigure on the fly, but getting 1.25 watts instead of 1 watt does not buy me much.

The implications of a common, cheap, 1 watt green pointer in Air Safety is going to be interesting to say the least. Even if the NOHD is only 800 feet like the blue, the increased visibility of 520 nm is going to push the envelope.

It is that season, and I've already blown a good deal on lasers this year. Or I'd grab one.

If this becomes common, it will push the DPSS makers to higher powers for less price. They lose profit margin, so they will have to trade something to regain margin.

Steve

[planters]

If this becomes common, it will push the DPSS makers to higher powers for less price. They lose profit margin, so they will have to trade something to regain margin.

This is what I've told Laserwave and I do believe that this will push the DPSS lasers to higher powers and in turn this will push the diode prices down. Isn't free enterprise a beautiful thing?

[absolom7691]

Thinking back to what you said, Steve, on the previous page about Nichia not selling singles, it seems a shame that they don't ship small quantity bulk like Osram does. I am not necessarily talking about the 1 watters but the lower power diodes. If they already have 100K+ unit contracts with companies like Casio, Veiwsonic and clone companies, I don't see them going under if they were to bend for maybe 100 or 200 unit sales. I mean, if they are in production, that is.

[dnar]

We don't need a murder fund, LPF do all the work for us.

[andyf97]

650 dollars now

http://item.taobao.com/item.htm?spm=...id=36554086396

[kecked]

looks like this model has a lasorb built into it or something like it. That might screw up modulation if not done right. I bet these diodes are meant to be on all the time as a light source so if they put something for protection that slows down change this may be a problem.