My second RGB laser projector, now with 70mW 488nm argon as blue (without blanking)
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Uploader Comments (c4r0hv)
All Comments (25)
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ok. im trying to make my own RGB laser... thing and i dont understand something. my blue is more purple than blue, my red is ok but its not very bright but my green out shines them both easily and they are all 5mw. what would i have to do to some how bring my green down or is it suppose to be that bright?
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@c4r0hv : Thanks man! That must require extremely precise timing especially considering how fast that mirror must be oscillating to give the illusion of a solid fan spread even on a still picture. Beautiful! Thx!
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hey, could you check to see if you could use a video projector to project an image on to the laser stream, so the image or video shows on the blue light stream?
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i'm working on making a hologram duel disk system, that's why i was asking questions... :)
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@c4r0hv thanks... :)
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Oh, I'm sorry. By "argon" I mean argon laser. This is a gas laser working on argon gas. The argon laser is this big black box with fan on the top :)
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Why did you dichro out the blue from the argon and dump the green as a waste beam?
You've got multi-line optics in the tube, so you can fold the green back onto the beam table and blank it with a separate galvo. Should give you a splash more power on the green or even free up the DPSS altogether.
Stoney3K 5 months ago
@Stoney3K
I did not dichro out green from the argon. It's from the green laser, just a few mW bumping off the other side of the dichro. This is because I don't have perfect dichros. This argon is single line, by the way.
c4r0hv 4 months ago
Hey! Can you please explain smthing for a newb? I get how the colors merge into one beam passing through the mirrors that also reflect other colors. I also imagine that the last mirror is oscillating back and forth to create the fan effect. What i dont get is how do these colors get separated in this fan or line of light projected? Are the lasers blinking off so certain colors are only on at certain mirror positions?(to get the rainbow?) Thanks! And both the build and the results look awesome
music01234567 6 months ago
@music01234567
You are correct, the lasers are turned on and off depending on the mirror angle (except the argon laser which is always on).
c4r0hv 6 months ago