The LEP Flashlights discussion thread - discuss LEPs here

The laser adapter was before the modules available now. Interesting how different types are becoming available.
I would be interested in beam shots of the owl eyes 2. Tonight I will get beam shots of the w30 quad.
PP there shouldn’t be any spill just the hot spot.

There’s no spill per se, rather a hotspot within the phosphor. The pic above is looking through a welding mask directly at the phosphor. You can see the hotspot where the laser is focused.

FYI:

I bought some of these phosphor targets deposited upon a sapphire wafer and was disappointed they were not mounted on a heat sink plate, as shown in the product photo #1., the item size shown is the full diameter of the whole piece, not the phosphor.

Transmissive White Phosphor Plate,Cct And Size Customizable - Buy Phosphor Plate,Transmissive,Customizable Product on Alibaba.com

Chinese sellers often disappoint.

I think that as the laser increases in power more of the phosphor is excited. Is there a limited amount of light that can be generated in the phosphor? Is there a lens on top of the phosphor?
W30 has a small lens between the mirror and phosphor. The laser and lens are fixed and can’t move.


You can see the rebate where is sits.

I would sure like to know what the beam does on the output of the lens before it hits the mirror, whether it is collimated to infinity focus, or is focused down to a point :)

Can you tell me what the approximate diameter is of the phosphor itself?

The small lens is just a Pre-Collimator to generate the Lumen
and make a bigger spot.

You can use it, or not.

At my Lep Modul,

there is no lens.

Regards Xandre

You use 2 lens if you can’t get a lens with the exact focal length. It doesn’t matter where the secondary is so long as it catches all the light and directs it to the primary.
This is how it works both are in focus and collect all the light.
Short focal length makes the beam wider


Long focal length narrows the beam

By the way nice pictures :+1:

Regards Xandre

Do you have access to a 3d printer? Should be pretty easy to design a printable bracket.

Thanks Xandre
it was the best way for me to understand what was going on.

Pip
I was planning on casting and machining it from aluminium that is what I know. It may need a separate battery to switch it. I have been looking at scopes and cctv cameras with 300mm lens. To hold it steady it will have a shoulder rest or mounted on a surveyors tripod.
Tomorrow I will have the other 9, one spare

Hahaha in a moment of madness

I don’t have the space for machining equipment yet, some day I hope to.

In the meantime the 3d printer has been like a little desktop machine shop for anything I need that can be made out of plastic.

This week I am ordering steel for a new 9m x 14m shed. Hopefully it will be big enough. I eventually want a 3D printer and CNC laser/plasma cutter. I dream of using a TIG welder in the 24inch mirror

16 x W30

That's really crazy stuff @Grin

I am very curious what intensity you can measure with all of them alligned.

btw.

Here's a comparison video of 10 of big-head LEP flashlights (Single cell only)

There's one more LEP incoming (dual cell) in the mail that sounds very promising... so I'll wait a bit for that one to arrive before doing my next video.

anyone see that countycomm / maratac is releasing a lep shortly?

No, I haven't seen that before..

Who's behind Maratac?

From the look of that light and some of Maratac’s other lights, I’d say Lumintop. It looks like a Thor 3 with a different head and body machining.

i think its lumintop as well but cant confirm 100%

the designs are so similar…

What is the mightiest LEP these days? Still rocking my Acebeam W30

Maxtoch Owl Eyes W Pro.