Project Excalibur - Next Generation LED Thrower (many pics) - UPDATE 2018-01-24

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The_Driver
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I finally have the light back in my hands. Before sending it back Michael also took some "artsy" beamshots. The light is great for long exposure times because of the rather dark spill.

 

 

 

 

 

Nobody up there has answered yet...

MRsDNF
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Smile They are addictive, the pictures that is. Thumbs Up

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

The_Driver
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It's time for more pictures. The plug in the lens is finally gone!

 

 

 

 

closer:

even closer...

 

 

Here you can see two fine details - the Osram Black Flat is a very thin LED, the Die is lower than that of Cree LEDs. Because of this Michael used especially flat screws and copper sheet metal (insulated with shrink tube) instead of round wires to block the smallest amount of light possible.

 

What follows is something that I really wanted to do with this light even though it's quite difficult: a picture where the yellow reflection of the LED die fills up the entire reflector (from this point on the real lumunious intensity can be measured because the beam has assumed its final form). 

 

The camera was over 10m (32ft) away.

With 150mm tele

The money shot:

Here the light was dimmed to 1% and the Camera was at its absolute darkest settings (during the day!):

This is what it looks like to be lit up from this distance during the day at max brightness (not very nice):

 

 

 

 

NeutralFan
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Amazing flashlight and pictures! A lot of time, effort, and (a little) money spent on a truly one-of-a-kind flashlight. Do you have plans for another one, or are you just going to admire this one for awhile?

I’d rather use my flashlight around the house than turn on the lights.

The_Driver
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NeutralFan wrote:
Amazing flashlight and pictures! A lot of time, effort, and (a little) money spent on a truly one-of-a-kind flashlight. Do you have plans for another one, or are you just going to admire this one for awhile?

Thanks. I don’t have the need or want to have Michael build another one. Also he wouldn’t do it anyhow (it took much longer than anticipated) and I don’t just have spare Maxabeam heads lying around. Wink

luminarium iaculator
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Now that is a flashlight and one tough mod. Michael is very talented guy.

The_Driver
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Still missing were the dimensions and the wheight:

  • Length: 32.4cm (12.8in)
  • Diameter of head: 14.5cm (5.7in)
  • Diameter of tailcap: 4.9cm (1.8in)
  • Wheight with batteries: 1.445kg (3.2lbs)

Wheight of some of the parts:

  • Head: ~600g (1.3lbs)
  • Body: ~541g (1.2lbs)
  • Tailcap: 103g (3.6oz)
  • Battery holder: 56.7g (2oz)
  • Batteries: 144.1g (5.1oz)

The BLF GT is around 60% heavier, mainly because of its five additional batteries and the material around them.

The_Driver
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Time for more beamshots. I'm getting gloser to my goal of 2.6km (1.62mi) beamshots. 

To make these shots seem more realistic they need be viewed in fullscreen mode on a large monitor in a dark room. This way much more detail can be seen.

 

544m(1785ft):

 

Tele:

 

498m(1634ft):

 

 

Cell-phone beamshot very close to the light (makes the beam look wide):

 

1700-1800m (1.06-1.12mi)

 

 

 

Tele (overexposed by a lot):

 

 

A darker target next to the building (1500m - 0.93mi) (with my own eyes I couldn't see this being lit up):


 

 

2100m (1.31mi) (the mast, the lit up castle is around 4.8km away):

 

 

 

Blane
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Great job. Beautiful light.

luminarium iaculator
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Show them direct comparison with 300 kcd Brinyte you have?

The_Driver
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luminarium iaculator wrote:
Show them direct comparison with 300 kcd Brinyte you have?

 

This?

 

 

It's a bit too close actually, the beam of Excalibur isn't fully formed yet. 

luminarium iaculator
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I thought on some fresh outdoor pics. Lets say 200 meters or less distance?

It is clear even from close pic that candela difference.

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luminarium iaculator wrote:
I thought on some fresh outdoor pics. Lets say 200 meters or less distance? It is clear even from close pic that candela difference.

It might take me a while, it's cold currently . Here's a gif comparing it with my 330kcd Brinyte. I used the old beamshots ("only" 1.5Mcd) and brightened the pics a bit to make viewing them during daytime easier.

Distance: 280m

luminarium iaculator
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Crazy Smile

ARC
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Very impressive project, love how the maxabeam head is so well integrated into the body, like it was always meant to look like that Smile

I am a big fan of long throwing lights, there is nothing like putting a spot of light over a mile away, i have a Gen3 Maxabeam and you can pretty much put a spot of light on anything the eye can see.

luminarium iaculator
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ARC wrote:
Very impressive project, love how the maxabeam head is so well integrated into the body, like it was always meant to look like that Smile

I am a big fan of long throwing lights, there is nothing like putting a spot of light over a mile away, i have a Gen3 Maxabeam and you can pretty much put a spot of light on anything the eye can see.

So 12-13 milion candelas?

The_Driver
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luminarium iaculator wrote:
ARC wrote:
Very impressive project, love how the maxabeam head is so well integrated into the body, like it was always meant to look like that Smile I am a big fan of long throwing lights, there is nothing like putting a spot of light over a mile away, i have a Gen3 Maxabeam and you can pretty much put a spot of light on anything the eye can see.
So 12-13 milion candelas?

 

That's a lot of work. The Maxabeam needs to measured in around 100m distance to get accurate values.

 

EDIT: here are some new 50m (164ft) beamshots, again with the 330kcd Brinyte. Unfortunately there are overexposed by too much. The hotspot of the Excalibur is blown out. 

 

 

 

luminarium iaculator
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So this is 1.5mcd vs 300kcd. Impressive indeed Thumbs Up Now I hope in future you will be able to reach even more than that with better led emitters and get close to that maxabeam V3 12mcd mark.

The_Driver
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The pics are new, so 1.7Mcd. Wink

Beating the Maxabeam will be possible with laser phosphor. With LEDs it will be very difficult. Could take 5-10years still or maybe never.

luminarium iaculator
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The_Driver wrote:
The pics are new, so 1.7Mcd. Wink

Beating the Maxabeam will be possible with laser phosphor. With LEDs it will be very difficult. Could take 5-10years still or maybe never.

Oh. I see you are very optimistic guy lol Big Smile

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luminarium iaculator wrote:

Oh. I see you are very optimistic guy lol Big Smile

My light should beat the maxabeam in less than 5 months Smile
Obviously it will be a bit bigger, but still counts as a flashlight Smile
Nicolaas
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Does it have wheels and a remote?

If not, I think it still can be called a flashlight!

Looking forward to you post&pictures.

Grtz
Nico

The_Driver
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Enderman wrote:
luminarium iaculator wrote:
Oh. I see you are very optimistic guy lol Big Smile
My light should beat the maxabeam in less than 5 months Smile Obviously it will be a bit bigger, but still counts as a flashlight Smile

Well yes, of course.

I meant beating the Maxabeam by using the same head or at least the same reflector size. Not possible with LED currently.

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The_Driver wrote:

Well yes, of course.

I meant beating the Maxabeam by using the same head or at least the same reflector size. Not possible with LED currently.


With a lens the same size and a custom wavien collar that collects more than 60 degrees it should be possible using a synios LED.
Problem is that getting a lens that size will require a custom made option which will cost $1000+, and another $1000+ for a custom collar.
Also it will output like 100 lumens Big Smile not the most practical thing.

But you’re right if you’re talking about using the same optic, the reflector, then it will probably be at least 5 years or maybe never since the laser+phosphor will replace high intensity LEDs.
I think the acebeam W10 will also only produce a few hundred lumens or maybe even less, they don’t even advertise the lumen output lol.

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It continues.

During a very clear night.

 

 

 

The camera was around 10-15m away from the light. I used the longest possible exposure. 

The_Driver
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Since many of you probably don't know the the driver that was used here, I have some more pictures.

 

From left to right: classic 105C, Ampere! driver, Stripe v4 dimmer module, USB programmer for the dimmer module (the linked pages are in German). You can ugnor the cables, they are not stock.

 

 

The inductor is rather large:

 

XD9
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Awesome. Thanks for sharing! That Driver and Dimmer look so interesting!

The_Driver
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I have added a clickable table of contents to the first post to make finding things easier.

 

Also, here's another beamshot (240m - 787ft). This time it was raining:

The_Driver
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Finally it's done!

Beamshots in 3.4km (2.1mi) distance!

The conditions where very good which allowed me to make the beamshots I have been wanting for quite a while (ANSI distance of the light or further). They were taken with an Olympus E-520 using the following settings:

  • Aperture F/8
  • Shutterspeed 30s
  • ISO 1600

I purposefully overexposed them to allow for viewing under daylight conditions (in reality the sky was dark). The target is the water tower to the left of and behind the building (which itself was 1.4km away) in a distance of 3.4km.

 

14mm:

   

 

 

42mm:

 

 

cropped:

 

 

Gif:

 

Some more fuzzy smartphone pics:

 

 

Itsme
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Cool!

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