Laser specifications GOOD OR BAD

[tony220171]

Hi Guys I need some advice on these specs Please much appreciated......

Specifications:
Laser: Diode Laser / Diode Pumped Solid State Laser
Wavelength: green 532nm,red650nm,blue450nm
Green: G1000mw
Red: R2000mw
Blue: B2000mw
Total Output: 5000mw
Cooling: air-cooled
Scanning unit: ILDA 40Kpps closed loop scanner
Scanning angle: 40
Modes: Sound active / Auto mode / DMX512(12channels)
ILDA Connector/LCD/Line control
Main power: 100-250V, 50/60HZ, 150W

[White-Light]

My immediate reaction would be steer clear of 650nm red.

You can achieve the same brightness with lower power and better beam specs with 637nm or if you want a slightly deeper red, 642nm.

This is 637nm in case you're wondering although the camera will have some influence on its appearance:





You need to look towards the ends for the colour as the camera is over saturated near the aperture.

[tony220171]

Thanks for the reply great red colour other than the red is it a good set up. How much for a system like this cost you think

[polishedball]

And the 650nm iirc is often a flying brick. You really need the specs of the lasers for anyone to offer a good opinion. beam size mrad etc

[Song]

try 637nm Red 1W + 532nm Green 2W + 445nm Blue 2W.

[White-Light]

Thanks for the reply great red colour other than the red is it a good set up. How much for a system like this cost you think

That's a 2.1 W Kvant Spectrum so yes its expensive - red is actually only 680mw @ specs (not measured).

However, you can get 637nm or 642nm reds in other people's systems or separately to build your own.

[edison]

637nm is the way to go. Also the lower the divergence the higher the brightness and the better the graphics. A 3 watt low divergence looks the same as a 4 watt higher divergence. Also cheap powersupplies, scanners , safety features and other feautured determine the price of a projector. I have 650mw red with 1 watt green and 1.5 watt blue and i,m very happy with that.

[tony220171]

So how do you know which Lasers are the best regarding NW is there a chart to go with or just experience over the years????

[Song]

experience is a main point.
There is a rate for each R.G.B power to balance.(different wavelength different rate).
But for Analog laser, the brightness can be adjusted by Software, so it is not a problem to get the color you like...

[Steve Milani]

I agree with Edison and Song both.

My 2.5W projector has inside:

- 1W/650nm
- 620mW/532
- 800mW/445 (Edison)
scanners: LW-50K (set at 25kpps).

I adjusted only green color power by DS3-RGB level control (from *Stanwax*) cause it is little abundant and white point obtained is very good: bright white-snow.
Even if the red is fat like a pig (its spot goes out from scanner mirrors), when I do "medium range projection" (I mean screen distance about 10 meters) I stll have acceptable results for graphic use.

It is a good projector for beamshow. Tested last Christmas for indoor use (sport hall 50 x 30 meters), venue 450-500 people.

What its weakness is? (apart the fat red..).
Violet color: it is virtually impossible obtain a good point of it. Most part of time I have purple instead violet. I think this is because modules have not a great analog modulation range.

Anyway... I'm 90% satisfied of my baby.

Eheheh...Perfection is not for this Earth....