Thanks! That's what I was getting at. If at room temperature with the single tec design that the pump diode will provide enough heat at idle to get the crystal assembly close to it's operating range. Of course at such a good price I don't expect perfection, I'd be happy with anywhere in the 2/3rds max power area when the lasers first hit. That's enough to keep the colour balance from swinging too wildly and also enough overall brightness to provide the impact. That first burst of lasers in an important part of the show.I have found in the lab that at typical 20C temps the laser can sit idle for an hour and immediately reach max power with a 5V modulation signal.
Do you think the oem-v series would be a better choice than the standard fan cooled series for this aspect ? It sounds to me like the single tec design of the oem-v series would be an advantage for this particular aspect.
The majority of my shows are indoor, a mix of night clubs, theatres and hockey arenas. The hockey arena's use an insulated floor to cover the ice, and are typically heated at least somewhat. Though the floors do get rather cold, up where the lasers are is usually a bit warmer. So there's a bit of range of temperatures there, but not to the extreme. During transport is when they'd get overly cold, but do tend to sit powered on at idle for a few hours leading up to the laser portion of the show.
I will look at heating the baseplate for the other advantages you mentioned. Portability of course is a major concern in my builds, so I always need to weigh the advantages vs the extra size and weight and power consumption, though I think at the very least running the coolings fans on a thermostat would help a lot and can be done with minimal added complexity. Luckily I haven't run into many weather related problems so far despite in some cases being stuck in the rain at near freezing temperatures. The times I did have problems with the greens never getting to operating temperature, blocking off the main cooling fans took care of it, so I think having the fans on a thermostat would almost be enough.
What I find strange is some of the green's I've owned seem to be less susceptible to it, and to my knowledge none have been heat/cool capable. So there are other factors in the design can help. My dhom's for example seem to be rather resistant to cold weather. I believe I read somewhere they were a single tec design as well, but can't find reference to it anymore. If that is one of the factors that can help, then the oem-v should be superior for that aspect than the standard fan cooled dual tec laserwaves. I am leaning towards the oem-v for that reason, it sounds like it should suit my needs well. Thanks for the advice.
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Originally Posted by dnar
