RGB system power

[Larsen]

BTW I just checked the Meirlight site. You are aware the 1 Watt 650nm is TTL aren't you?

You're going to need analogue to adjust colour balance via the software and I'd suggest you'd want analogue for the type of projector your building size wise anyway as your proposed size suggests some pretty professional use.

You want analogue on all of your modules.

I know. The green and blue module is analog, but the red one is TTL. I have a PS in order with analog modulation, so hopefully it will just plug right in to the red module and work.

Are there any possibilities to improve the beam quality? Or am I just waisting time?

How do you suggest combining 4 diodes? dichoric mirror?

[edison]

Yes you can combine them with dichroic mirrors and brass flexmounts. But stacking beams (especially more then 4) is not that easy. The fact is that almost everyone needs bigger reds. Most people that can afford KVant or RGB lasersystems have a company so they earn the investment back. I couldn,t afford them either so i decided to develop my own modules. That took me more then a year already and they are not finished yet. But i,m getting real close. I,m not stacking more then 8 so i can go up to 4 watt of mixed 650 and 637. I can build you one but that takes some time. If you want to speed up to process you can ask Adam (300evil) or Danielbriggs. They can build you a quad red. I suggest a mix of two 637nm and two 650nm diodes. That will give you 1watt of red with good specs. If your patient i can build you one just like a Kvant or RGB lasersystems complete in a housing. contact Rob stanwax from greenlaser.uk His service is excellent and you can,t go wrong with him. Good luck!!!

[White-Light]

I know. The green and blue module is analog, but the red one is TTL. I have a PS in order with analog modulation, so hopefully it will just plug right in to the red module and work.

Are there any possibilities to improve the beam quality? Or am I just wasting time?

How do you suggest combining 4 diodes? dichoric mirror?

Slightly confused, the psu provides the power the driver determines the modulation type.

You could change the driver but you're going to cause yourself a whole world of electronic hurt trying to retrofit a factory module unless your an experienced builder.

As for improving the beam specs of 650nm it can't be done. They're about as good as they're going to get. I can't tell you the technicalities as builders on here can, but I'm guess the diode specs just aren't good on 650nm so that makes combining them into anything tight impossible as its the amount of radiation energy in the beam that causes the danger not how bright it appears. 1 Watt is 1 Watt of radiation whether its 100 lumens or 1,000 lumens.

You'd be far better going with 637 or 640nm diodes if you're confident in building yourself or with a laser at these wavelengths if you're not.

Buying cheap at this stage will only cost you a lot more later.

Remember as well there are significant brightness gains from lower wavelengths so you can buy a lower powered module at these wavelengths. Also, as I said above, lower power if less safety worries. The more you have to turn the projector power down for safety and to achieve MPE, the less bright it is anyway. So swings and roundabouts, don't get fixated on power so much as luminosity, that's what is important. Its the power that determines the safety not the brightness.

[White-Light]

I know. The green and blue module is analog, but the red one is TTL. I have a PS in order with analog modulation, so hopefully it will just plug right in to the red module and work.

Are there any possibilities to improve the beam quality? Or am I just wasting time?

How do you suggest combining 4 diodes? dichoric mirror?

Slightly confused, the psu provides the power the driver determines the modulation type.

You could change the driver but you're going to cause yourself a whole world of electronic hurt trying to retrofit a factory module unless your an experienced builder.

As for improving the beam specs of 650nm it can't be done. They're about as good as they're going to get. I can't tell you the technicalities as builders on here can, but I'm guess the diode specs just aren't good on 650nm so that makes combining them into anything tight impossible.

You'd be far better going with 637 or 640nm diodes if you're confident in building yourself or with a laser at these wavelengths if you're not.

Buying cheap at this stage will only cost you a lot more later.

Remember as well there are significant brightness gains from lower wavelengths so you can buy a lower powered module at these wavelengths. Also, as I said above, lower power if less safety worries. The more you have to turn the projector power down for safety and to achieve MPE, the less bright it is anyway. So swings and roundabouts, don't get fixated on power so much as luminosity, that's what is important. Its the power that determines the safety not the brightness as its the radiated energy that causes the danger not the brightness. 1 Watt is 1 Watt of photonic radiation whether its 100 lumens or 1,000 lumens.

[edison]

Open cans have similar specs and so allot of people build quads with LPC826.LPC822,or LPC815 diodes. The only diodes that are 650nm and have terrible beamspecs are C-mount diodes. But they are multimode diodes. They are diodes that have multi emitters so several single emitters next to eachother producing a stripe.
Two open cans with two 637nm diodes stacked would give you good beamspecs and a great mix of red. Dirt cheap is never a good option but when wanting a something good with a lower price then Kvant or RGB you can ask Adam or Daniel briggs.

[Larsen]

Slightly confused, the psu provides the power the driver determines the modulation type.

You could change the driver but you're going to cause yourself a whole world of electronic hurt trying to retrofit a factory module unless your an experienced builder.

As for improving the beam specs of 650nm it can't be done. They're about as good as they're going to get. I can't tell you the technicalities as builders on here can, but I'm guess the diode specs just aren't good on 650nm so that makes combining them into anything tight impossible.

You'd be far better going with 637 or 640nm diodes if you're confident in building yourself or with a laser at these wavelengths if you're not.

Buying cheap at this stage will only cost you a lot more later.

Remember as well there are significant brightness gains from lower wavelengths so you can buy a lower powered module at these wavelengths. Also, as I said above, lower power if less safety worries. The more you have to turn the projector power down for safety and to achieve MPE, the less bright it is anyway. So swings and roundabouts, don't get fixated on power so much as luminosity, that's what is important. Its the power that determines the safety not the brightness as its the radiated energy that causes the danger not the brightness. 1 Watt is 1 Watt of photonic radiation whether its 100 lumens or 1,000 lumens.

It is a power supply and driver combined, so I am thinking of exchanging both. I think the new analog PS and driver is also made by meierlight, so switching it shouldn't be a problem and if so I got the experience needed to switch over the diode, tec, fan and etc.

The red is a C-mount multimode red, so I know that is my problem with beam quality. A single mode of 650nm will probably not push past 500 mW anyways from what i understand, but it might get me a much better beam and lower loss at the mirrors.
What kinds of power will i need if to use if I replace it with 637nm modules?

I was thinking of maybe getting a replacement diode for it with FAC. Wouldn't this help with beam shaping? For now this module will have to do. I might upgrade if I start earning some serious cash on this in the future

MPE is no problem here as the location It is used in is more than large enough to get a safe distance to the crowd.

[edison]

A quad red preferable with 4 637nm diodes is what you need. But since 637nm are pricey you can choose for a quad mix of two 637nm diodes and two open cans. I have build one for michelrietveld. Beam is exccellent and he has a crisp white out of his projector. I think he has 400mw of green, 800mw of 650 and 400mw of 445nm in it. So with a very nice thin beam. I was impressed with the white that he has. I will upgrade his red module by adding a tec cooler soon. So a quad red is what you need.
Need something fast? buy a Kvant. Need something less pricey contact Adam (300evil or danielbriggs. Both are members from PL

[Larsen]

Thanks everyone!

I will post some pictures of my system on sunday.

[Larsen]

I got the projector up and running this weekend. Here are some pictures
https://www.facebook.com/media/set/f...6&l=1ad332f059

It need some cleaning up of the wiring inside, but it works excellent. I will also need to get an analog red laser module. There are some pictures there from my old projector as well.

[Speculative Lasers - Dan]

http://www.facebook.com/photo.php?pid=18258563&id=767690056



!!!!!