Quad RED module, home made, miniature size

[p1t8ull]

The LENS27 beam diameter @ 24m is <20 x 15mm with this .65um DVD diode, so far field will be a close match to most greens and near field 4 beams in a <3.5mm area should be possible

[sbk]

Thanks Simon. Well, LENS-27 just ordered

It would be pity to have such a nice module, with bad optics

[Frixxion]

Hi SBK,

I am in the proces of milling my own mounts and I was wondering if you could share your building-plans of your mounts? If you wish to keep them for yourself I understand .

,Jordy

[sbk]

Little update : I received the LENS-27, installed them, passed a lot of hours trying to get the best alignment of the 4 beams, and now I finally obtained a relatively good beam data : total is 2x4mm, but the most power concentration should be on an even smaller surface

Also I developped a small TEC driver, it's the lil board on the top of the module. It's adjusted for 20°C +-1°C, and seems to works well, despite it's only an on/off circuit with constant current source.
And maybe I should consider an external driver case, as all these boards take a lot of place...

Ah and about the power, I obtain a nice 1.2 watt after all the optics, with 350mA per diode, I'm quite happy

[Laserman532]

all i can say is...freaking wow! when I grow up I want to build something just like that! Do you have a laser engraver also? appears to be about 5" x 5" again I say...WOW!

[sbk]

Thanks That comment makes me forget a little the freakin hours and problems spent to build this module I didn't count how many times I told me if only I simply buyed an already made laser... But now I can say : I did it myself

Yes at my work I have some 5W laser engravers which I can sometimes use for my own purposes, it's nice!

In fact the size of the module is 88 x 72mm (3.5" x 3"). But it's quite large compared to the modules of p1t8ull or MechEng3 lol.

[Laserman532]

damn...and .....wow...

[p1t8ull]

Great job SBK! those LENS27's are expensive but give excellent results
When is the first production batch run of these modules starting?

[sbk]

Great job SBK! those LENS27's are expensive but give excellent results
When is the first production batch run of these modules starting?

Yes, expensive, about 40$ per unit, with the customs tax!!

Lol, I think I'll never again build a red module, that's too much work Although, now that I know better how to proceed, it would be easier to make one... And will certainly change some little things in the design, especially on the adjustments side

[mccarrot]

Lol, I think I'll never again build a red module, that's too much work

Have you seen the price for a 1,2W red with those beamspecs (kvant)
I think Its worth it.