New RGB module for single modes

[logsquared]

Just an update of the modifications to the base.

[kecked]

yahoooo! with the 506 scanners this might fit in a show box and weight less than 5 pounds. Finally a projector I can lug from room to room.

[logsquared]

So I finally got a chance to put one of these in a box. This was a box I made for something else awhile ago. It could be shrunk a lot more. I love the colors and speed of modulation! I'm hooked on all diode i think.

[teknical]

very nice, very nice indeed. Whats the power output like and when are they going up in the for sale board?

[JRGixxerfreaK1]

So I finally got a chance to put one of these in a box. This was a box I made for something else awhile ago. It could be shrunk a lot more. I love the colors and speed of modulation! I'm hooked on all diode i think.

Love your tiny build!

Could you make a beamshow video with this single mode, I was always wondering how it would appear

[logsquared]

Could you make a beamshow video with this single mode, I was always wondering how it would appear

I want to do a side by side video with a 532 projector of equal power. I dont have one here at the moment. maybe in a week or two.

very nice, very nice indeed. Whats the power output like and when are they going up in the for sale board?

Thanks! I am really happy the way they turned out... They just don't go out of alignment!

You know.. I haven't measured the power out. I set the currents to the datasheet max. My guess is around 200mw B, 70mW G, 150mW R. I can measure it if you need to know exactly.

I have 4 units almost ready to go. I just have to heat treat the bases.

If anyone would like to try them out I would sell them for $175. Comes with dicros, optima 4mm glass lenses in barrels. Basically, everything but the diodes and drivers.

[Nemo222]

Did you have any problems with machining tolerances on the 45degree mirror surfaces knocking the far field alignment out? That little module looks fantastic and I'm contemplating making something similar since I have access to a CNC mill. Currently my laser assembly fits into a 5x6" footprint and if I can reduce that to a 3x4" with something like this I can downsize my projector even smaller than a sheet of paper.


There looks to be very little adjustment range, are you just counting on tolerances in the block or do your little slotted brass back plates handle the adjustment?

[logsquared]

Did you have any problems with machining tolerances on the 45degree mirror surfaces knocking the far field alignment out? That little module looks fantastic and I'm contemplating making something similar since I have access to a CNC mill. Currently my laser assembly fits into a 5x6" footprint and if I can reduce that to a 3x4" with something like this I can downsize my projector even smaller than a sheet of paper.


There looks to be very little adjustment range, are you just counting on tolerances in the block or do your little slotted brass back plates handle the adjustment?

I use a precession sine plate to set my hand mill to 45deg. All the angles are cut at the same time. Its more important that all the angles are parallel. They are cut without taking the part out of the mill or moving the head. Even if the angle it of a tiny bit off the far field spots can be perfectly overlapped with the expense of a tiny bit of lateral offset (not noticeable with the eye)at the aperture. All the adjustment you need comes from moving the diode plate X and Y.

I would say go for it and build one. You won't be disappointed.

[Nemo222]

Suddenly I wish I had a 4th axis >_<
I already have my laser block and Dichro mounts so this might be a project for another projector. I also bought the diodes in housings so I might as well make use of the money I spent already. The base plate is 8x11". which is still stupid small

I suppose I could just press the entire copper end of those diode modules and not worry about having to deal with the lens threads and diode seat while taking advantage of what I have already. Hmmmm....

HMMMMMMMMMM

[Nemo222]

Yeah. So I like the idea of a single module way better than how I had it originally.
So here is my version. CAD and NC programed ready to cut once I figure out what thread the lens I have is.

I ended up with a 1x2" stock size, 5" long. does that sound reasonable? I think I could make it a bit shorter but don't see the point.
It makes a big difference on the base plate, I can make it 3" shorter If I pack the flex-mods in tight. and mount the 12V power supply above the laser module. that would make it an 8" square projector!


I'm going to try a straight press fit into a reamed hole on my little diode tabs instead of clamping them like yours. If that doesn't work out I have a slitting blade so I can change them to a clamp without re-making them.