Need advice on budget RGB

[Bjorn]

Ok ok lets do some math.

What we have is
green 60mW@532nm, red 200mW@650nm , blue violet 140mW @403nm

As you may know we count by greens. We have 60mw of green which is good for a small hall with no lights. To balance this green with 650nm you need ~4 times amount of red. 60X4=240. (200 they use is ok) But it doesn't mean that you will get a extra 200mw in visible light. You will get 40mw. So total visible power so far is around 100mw. Now Violet laser. You need ~12 times to balance it out. (don't have "croma" on my laptop but is about right) So 60X12=720mw. They only have 140mw. This means that you will have an extra 11mw of visible light. Total is ~120mw of visible light. A good green CNI module with 200mw power will give you (with overspec) about 270mw of visible light. Plus you will have a good base for a good RGB pojector.

PS. I forgot to add that actual output power from those noname china lasers is much less then advertised. You will be lucky to get a total of 90mw.

PS2. Does this ebay laser have ILDA port?. Nothing mentioned in description. 100 patterns and nothing more.

I'm also looking at a laser for use in the livingroom and found this one http://www.highlite.nl/index.php/hig...shogun_pro_250at the equivalent of US$6000 but after looking at your calculations it seems like the power output of the lasers (150mW red, 80mW green, 50mW blue) are missmached. It also confuses me that the text describes it as both a 30k and a 24k unit.
There are some more pictures of the output on page 370 in the online catalogue at http://www.highlite.nl/static/market...e_cat2009.html
I noticed that the weight is 44 pounds (20kg) which make me wonder what's so heavy inside when you can get more powerful lasers at the size of a torch.

Bjorn