kvant vs laserworld

[temp]

Hi Everyone,

I always find forums infinitely useful for research because it is usually a source of passionate people you can really trust. Forgive me as I am sure there are already discussions around regarding this however when I try to search I appear to get a lot of unrelated results.

Anyway here goes. I am just wondering what the general opinion is of the kvant and laserworld units. Probably a broad question that has varying opinion however I am interested to hear what people have to say. From my limited knowledge it appears that some of the kvant models do not appear to have enough power in their blue diodes in comparison to the red and green. For instance the 1.3 watt full colour has a 600mw red, 500 blue and 300 green. It says it has excellent colour balance but that doesn't seem quite right to me, but I am happy to be corrected.

Is one brand reputed to be better than the other? Is there other suppliers you can recommend?
Happy to give additional information, thanks for your help.

[300EVIL]

Is one brand reputed to be better than the other?

Do yourself a favor and to a search for "laserworld" on this site.

I've personally seen the Kvant 1W Spectrum and I'd say the color is perfect!
See this thread...
http://www.photonlexicon.com/forums/...-RGB-projector

[temp]

Thanks for your help! That thread was great and the kvant unit looks great.

Can you tell me why the 1.3 watt unit has:
600mw red
500mw blue
300mw green

But the 2 watt unit has:
600mw red
1 watt blue
500 mw green

The power difference from colour to colour is completely different between the two models. The 2 watt will have a much better blue but will this make it look more even? The 2 watt power balance between the 3 colours is more of the mix I would have expected.

Can you recommend other manufacturers that are in the same price range to have a look at?
Thanks.

[norty303]

Depends what red it is, the 1w could be 650/660, the 2w could be 640. It makes a big difference.
For alternatives, check out Lasewave for the cheaper option, or for comparable money to Kvant, look at RGB. Kvant seem to have quite an impressive modulation spec on their new 532's, check out a recent post from Pelosh for pics.
There are a number of projectors owned by people on the forum that have quite a bit less 473 than the other colours that still achieve a good white balance

[pelosh]

Hi.

The reason for that is that when we want to increase the power to 2 watts we have choice of standard models of our laser modules and laser diodes we build those modules from (although custom made systems are possible). If we increase 445nm blue in 2 watt system to 1W, it will perform much better in terms of white balance then if we would increase red or green more then the blue (we could do 900mW Red, 600mW Green, 500mW Blue, but increasing 640nm red is bit more aggressive then 445nm blue overall).
We could also decrease the output of blue module to something like 800mW, but as 2x500mW diodes are used inside that would be waste of power. It is quite nice to have as much of thet blue as possible

From my own experience it is very hard to compare Kvant with Laserworld as their parametres differ so much from each other.
Also it is quite hard job to get Laserworld that would perform up to listed specification-that's one of the rasons why their stuff is cheaper (it actually isn't that much when real performance/price ratio is compared).