Yeah that is freaking amazing man! [smiley=tekst-toppie.gif] Nice job. I have been trying to get a yellow beam forever now. But I gave up because I do not have a dichro. I have tried the mirror thing. It's really hard to align them correct.
Oh man that's amazing! I bet it was depressing putting everything back after taking the time to line every thing up. I'm sure it would be a good match lighter.
Heh, I tried mixing a green and red beam back in the days when my Pulsar 100 was alive, but the beam just looked like a crap TEM03 beam with many other small dots and scatter around it. ;D
Oh, by the way, I find the best ratio to be about 1 to 8, my eyes must be really screwed up.
That looks amazing Tallaxo! The beam is PERFECT! or damn near it! As far as the beam goes it still looks like it's a single beam... That must have taken ages to put together and must have hurt to take it apart after all that work...
Tallaxo actualy has about 47 pairs of laser goggles - and I think he wears about 15 of them at once.....hehehehehehe !
Now, this is ONLY an assumption....but, the goggles that protect from either green OR red would most likely be sufficient for protecting from yellow - since the wavelength is somthing in the middle ?
Hmm u could be right but i kinda doubt that. I am more inclined to think that if u would place the goggles wich protect u from green in the beampath, the green would be filtered but the red would just go through. Remember that we are not dealing with an actual yellow laser but with a yellow looking beam made out off a green and red beam.
Anyhow i hope someone more experienced than me can shed some light on this subject.
Sambo: The truth is, you cannot really use goggles for colour combining. It has to be done by alligning the beam and not 2 converging dots. I could have a laser each side of the room and make the dots converge on a far wall, but that will never give a combined beam. To achieve a combined beam you must either use a dichro or the mirror with a hole trick to effectively make both beams appear from the same point in space.
This cannot be done with goggles. I have the advantage that both of my red and green labbys are variable power, and the initial setting up is done on just enough power to see the beams in smoke, before turning up to full power (this is a trick employed by pro laser lightshow specialists, on their allignment in new venues when setting up). I dont have an optics table, so the allignment is painstaking to say the very least. The hardest part (for me at least) is to get both beams at the same height and parallel to the surface you are working with.
With variable power on both lasers, many colours are possible, red , deep orange, orange, yellow, lime green etc. Basically any perceived colour between 650nm and 532nm in the light spectrum.
To further answer your question, I never use goggles, unless I am burning something up close. But that is my choice as I use my experience to determine the possible risks to my eyes.