RED Module Kits for the ML520G71 Diodes

[steve-o]

This is really, really, really, really good news

I was just re-reading the 1st few posts on this thread and looking at your modules and found this post ..

Well over 1 watt should be possible at 700mA.

That was with the G71. Now it looks like we could possibly double that with the P73?!

[dnar]

Logsquared, I have a bunch of 405-g-2 fitted to Dave's brass barrels, can these be used with your kit? Any loss in performance?

What is the beam height from base?

I am thinking of getting your kit, I might PM you soon.

[logsquared]

The 405-g-2 work fine but the optima 4mm lens is better. The optima has about %10 better throughput and ever so slightly better beam quality. Also, I think people are getting really good results with Dave's 2mm lens. I have some here but have not taken the time to completely test them out. I would think the 2mm lenses are only necessary if you have 3mm mirrors or are trying to stack a bunch together. The beam height is ~29mm.

Problem is I ran out of the surplus waveplate that was included with the kits

Also, I have since built many different modules with these diodes and have simplified the set-ups quite a bit. Less parts in total but a little harder to align. I have used many different telescope combinations as well. So, I can pretty much predict the beam parameters for different mags.

[steve-o]

LS-
Is there not a 6xxG-1 lens similar to the 405G-2 but AR coated for red? Do you have divergence over 1mRad when using Dave's 2mm lenses? I'm looking for a compromise between ap size and far field size (low divergence) I've put fairly big mirrors on my scanners so that's not an issue. Maybe 5-7mm at the aperture and < 1mRad divergence? Are the kits still the same price, or lower due to less parts that you mentioned?
Thx- :]

[logsquared]

I have not used the red coated 405 lens. My guess is its very similar to the optima in performance.

I have not had the chance to test Dave's 2mm with a telescope yet.

I will not be selling this exact kit as it was designed partially around the surplus waveplate I had.

I may build a different kit in the next few weeks? It will probably have a divergence around 1.4mRad as that is what most are after. But I can always build A custom one to the specs you need.

[steve-o]

Built to specs.. very nice!

[Tomeeii]

where can i buy only the cylender lens set? the all other parts i have

[logsquared]

where can i buy only the cylender lens set? the all other parts i have

Edmond Optics:

The positive lens is NT68-049

the negative is: NT68-069

Also, I have good luck with EO's positive 75mm and 50mm. 50mm giving ~1.8mRad and the 75mm about 1.4mRad.

I did cut the lenses into thirds to help save money.

Also there is a group buy going on for lenses as well.