Hey grin, which is which? And what did you modify on the W30? Did you take before and after measurements?
Thanks
Maxabeam is on the left. W30 is same cut one mentioned earlier. i made an adaptor to go in my lens jig. The configuration used primary lens 200mmD 400mmFL, secondary lens 150mmD 200mmFL. No measurements yet but I am working on a setup to take accurate measurements. Another W30 ordered for a lightstorm s90 clone so before I mod it I will take measurements for comparison.
What could be better than a searchlight mirror?
Two searchlight mirrors.
Is it a newer version?
Exactly the same numbers the condition is not as good. This one came from a government research place in sydney the old bloke said it was originally in the searchlight but they were long gone. They must have been a standard light brought in during the second world war. It will be interesting to see if anymore turn up.
Well I have taken a different approach to designing lens lights and now before I try to build it out of alloy this way will give me exact measurements. So i have been playing with W30s and some new lens, i have this combination which was a calculated guess. It is a 75mmx75mmfl condensor and 150mmx600mmfl primary or objective lens. the actual length is still too long for a torch so I need to experiment to shorten it. My apologies for not having measurements but very soon when Im confident they are accurate enough to use.
From my measurements the stock W30 runs at 2.6amp the driver in this W30 runs at 3amp with resistor swap from R025 to R010. my tests point to the laser diode being able to handle 3.5amp and you would be stupid to take my word for it. Does anyone know if W30 has a linear driver?
Was doing overtime tonight and I had K30GT and a MF01S on me so took some beam shots from the boiler. The crane is about 200-300m
K30GT
MF01s
Just catching up on your thread grin. You have been busy. Love your work. 
Same as!
Thanks and
Well I have worked my way through this puzzle and I think I have my head around it. Mostly 
Now I understand more what im going on about. I have struck to using spherical lens because they are off the shelf and to get around aberration problems Im using multiple lens. I think using an objective/primary lens with a focal length of at least twice the diameter reduces the aberration to near zero and gives you that clean crisp bright laser like beam.
The_Driver was absolutely correct a very short focal length precollimator/condensor/secondary lens should be as close to the led as possible. I think the best lens is square, diameter is equal to focal length. It has to big enough to allow some travel and still catch all the light from the led.
This is 5mm movement in the secondary lens and the beam looks thats bright.
If I shorten the focal length the beam quality drops dramatically. It is not just the focal length but I dont fully understand what is happening yet.
Oh my, 
, Please don’t catch that tree on fire !
It actually lookes that bright and I can push the laser a bit more since I have tested the other one. I am fairly certain the phosphor would handle a 6w diode.
I recommend you pick up one of these:
http://www.miniware.com.cn/product/mdp-xp-digital-power-supply-set/
If cost is a concern, you can just buy the bottom half. It is the bottom half that does the CC/CV control. The top just makes it easier to adjust settings and monitor. These modules are the top purchase of the year for me in terms of productivity boost. They are precise and very powerful for their size.
You need to focus on how many amps you will put into the diode. I assume the diode they are using is NUBM0A. The most powerful would be NUBM44v2 but that is very expensive.
I would aim for 3.8~4.0A into the diode for NUBM0A
Regarding the phosphor, it will actually drop in performance if you push it too hard. You can just use a lux meter while adjusting diode current to find the maximum output. You don’t need to have the output focused. As long as you keep your measurements consistent, a bare phosphor measurement is enough to find out your real life maximum.
In my experience with this type of phosphor (silicone binded YAG:Ce crystal powder) at around 3.5A with a spot size around 0.7 x 0.5mm (really hard to accurately estimate this), it will reach maximum performance. I dont have a W30 myself but I estimate this is the spot size they have. If the focus is any smaller, it will burn the phosphor even at around 1.2A
I was looking at one of those power supplies so I now wait for one. The W30 spot would be set by the small lens in front of the phosphor the other lens collimates and shapes the laser output. I have NUBM44 diodes, 16 are going in another little project. Thinking I might buy some phosphor crystals enderman linked somewhere.
Can you pass along a message to the new astronauts. Thanks mate
They told me to go away, their air conditioner was working overtime or something.
Is this showing the guts of a W30, or what is it? What is the purpose of the prism and side lens—is that for the output beam? is it off-center?
Thank you for sharing the picture.
How far apart does the small lens sit away from the phosphor?
I finally understand how acebeam can manage 500lumens. I couldn’t understand how 500 lumens was possible because I never knew about the additional lens!
What focal length do you think the small lens is using? I now really should test this.
Have you looked into the nichia nubm31t or nubm41? They are very easy to manage as their beams are so compact.
