Old 04-15-2012, 08:11 AM #1
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Default My first RGB laser *update*

--- Update at the bottom ---


Hi all, yesterday I spend the whole day at building my RGB laser.
It is not perfect. I have to do some fine tunig on it, but I think it is still worth to post it .
My camera doesn't pick up all colors right, some photos may not look like in real.

The blue diode is a M140 at about 1A
The red is a M!t$ub!sh! at about 700mA. It doesn't run at full power because the green is to weak. The beam is really big but I don't have a simgle mode red diode :/.
And the green DPSS is 85mW out of a pointer. (To weak for this build :/ )
I have got the diodes from DTR, thanks!

First I had to build the driver for the diodes.
This is the driver for the blue diode. I messed it up while I tried to cut the PCB but I was able to fix it. Btw: this are the first drivers I build on my own



Here is the driver of the red diode. It looks much better then the other ^^.



Both together ...




So let's put all together. This is the final build. I have only to build a little lm317 circuit for the green DPSS. It needs 3V and I power it up with 7,5V out of a computer PSU.



So here are some beamshots. I can't get a real white. I think this is because the beams of the red and blue diode are so big and the green is really small. On a wall the dot is pretty white, but still not perfect.
But the colors are actually really cool.

This should be a white beam. But it is only in the middle of the beam. Aound the beam there is a magenta color. The beam of the green is too small and a bit too weak.



Here is the dot on a white wall. In real it looks quite white.




Here is a shot of a orange shot. I really like it. It looks much better than the "white"



I have changed the resistor before the driver. So the red is now a bit weaker and I get a really cool yellow color ^_^. Here you can really see that the red diode has a huge beam.



This is the blue diode with the green DPSS. It looks like only a 445nm laser on the picture but in real there is a really cool blue color, especially the dot.


Maybe the will come updates but I'm not shure. I hope you like it!
cheers


Update 1:
I have took a shot with a bit of fog. There is white light! But only in the middle :/. I think if I will have single mode diodes I will use them.


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What I have to say first: Sorry for all mistakes I make. But I hope everyone understands my english, thank's
Lasers:
RGB Laser *click me HARD*
<1mW 337,1nm TEA-laser HOMEMADE!*click me HARD*
150mW 405nm RIP HOMEMADE!
500mW 405nm pen HOMEMADE!*click me HARD*
1000mW 445nm 3D Printed Host Build HOMEMADE! *click me HARD*
1000mW 447nm Dragonlasers Spartan
300mW 532nm Skylaser 517mW peak H532L-S300B skylaser
50mW 589nm Dragonlasers Spartan Variable Power Mod *click me HARD*

500mW 635nm HOMEMADE!*click me HARD*

My first tesla coil! : *click me HARD*
My first BIG one! : *click me HARDER*


Want to make a simple diffraction grating?
http://laserpointerforums.com/f49/di...tml#post952546

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Old 04-15-2012, 08:42 AM #2
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Default Re: My first RGB laser :)

Very good simple build You should deffinitely get more powerful green module. Where did you get that dichros from?
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Last edited by Windforce; 04-15-2012 at 08:42 AM.
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Old 04-15-2012, 08:55 AM #3
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Default Re: My first RGB laser :)

Thanks . I've got them from DTR. They were in the optics kit he sells.
__________________
What I have to say first: Sorry for all mistakes I make. But I hope everyone understands my english, thank's
Lasers:
RGB Laser *click me HARD*
<1mW 337,1nm TEA-laser HOMEMADE!*click me HARD*
150mW 405nm RIP HOMEMADE!
500mW 405nm pen HOMEMADE!*click me HARD*
1000mW 445nm 3D Printed Host Build HOMEMADE! *click me HARD*
1000mW 447nm Dragonlasers Spartan
300mW 532nm Skylaser 517mW peak H532L-S300B skylaser
50mW 589nm Dragonlasers Spartan Variable Power Mod *click me HARD*

500mW 635nm HOMEMADE!*click me HARD*

My first tesla coil! : *click me HARD*
My first BIG one! : *click me HARDER*


Want to make a simple diffraction grating?
http://laserpointerforums.com/f49/di...tml#post952546
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