acebeam WL20 - 2000m throw

M4D_M4X · 2018-03-12T10:45:05.000Z

on the second day..

got a lot WOWs ;)

leaftye · 2018-03-12T16:31:56.000Z

It’s hard to really tell for sure, but it appears to have very little spill.

The_Driver1 · 2018-03-12T16:46:17.000Z

Aspheric lights don’t have real Spill. Only the light reflected off of the internals of the flashlight exit the light as Spill.

start90a · 2018-03-12T17:19:59.000Z

The_Driver:

Aspheric lights don’t have real Spill. Only the light reflected off of the internals of the flashlight exit the light as Spill.

Should be a kind of corona so, unperfect collimation of the light. Spill is direct light from emitter, isn’t it?

Enderman · 2018-03-12T19:40:35.000Z

start90a:

The_Driver:

Aspheric lights don’t have real Spill. Only the light reflected off of the internals of the flashlight exit the light as Spill.

Should be a kind of corona so, unperfect collimation of the light. Spill is direct light from emitter, isn’t it?

No.
Corona happens to reflector flashlights that have a gradual decrease in intensity around the spot.
Aspheric lights have only a spot, no spill or corona.

start90a · 2018-03-12T19:49:02.000Z

I know that cprpna heppens in reflector flashlight cause of the led is not a source perfectly fitting the focus point of the paraboliod.
If the focus is in the center of the led, every other lighting source os not collimated to the distance, so that it’s created a corona.

We all know that WL20 has not any reflector…but someone saw a light around the spot.

AlexGT · 2018-03-12T20:10:15.000Z

M4D M4X:

on the second day…

got a lot WOWs

.
SPILL THE BEANS!!! Tell us what did you see!!!

AlexGT · 2018-03-12T20:19:02.000Z

Acebeam has other interesting lights

AlexGT · 2018-03-12T20:21:21.000Z

AlexGT · 2018-03-12T20:23:10.000Z

luminarium_iaculator · 2018-03-12T20:32:03.000Z

DIPSTIX:

What’s the practical use for a beam profile such as the WL20?

You are kidding right? Or maybe not :question:

Even if you are not hunter get yourself lets say 6x mag monocular and pair or mount 1mcd flashlight on it and you’ll see things you did not even noticed before.

Imho there is nothing more impressive than super thrower flashlight (laser or led).
Especially if it is available in small, light and portable configuration or if you have zooming flood to throw ability. I would never ask for better light.
Lumens can’t impress me unless they are accordingly followed by lux. I have 20 000 + lumens street light in front of my house and I only have headache from that

M4D_M4X · 2018-03-12T20:38:02.000Z

look me in the eyes Baby!

taken from the W10
WL20 looks quite the same , but with bigger Lens (NOT zoomable!!)

leaftye · 2018-03-13T05:33:29.000Z

luminarium iaculator:

DIPSTIX:

What’s the practical use for a beam profile such as the WL20?

You are kidding right? Or maybe not :question:

Even if you are not hunter get yourself lets say 6x mag monocular and pair or mount 1mcd flashlight on it and you’ll see things you did not even noticed before.

Imho there is nothing more impressive than super thrower flashlight (laser or led).
Especially if it is available in small, light and portable configuration or if you have zooming flood to throw ability. I would never ask for better light.
Lumens can’t impress me unless they are accordingly followed by lux. I have 20 000 + lumens street light in front of my house and I only have headache from that

More importantly for me, it means being able to see further down a passage. Even super throwers like the GT have enough spill to blind me. If this illuminates nearby objects far less than any zoomie, then it’ll be a big win for it. Given the rated throw with such few lumens, I’m expected far fewer lumens spilling outside of the hotspot. Sometimes only illuminating what’s hit by the hotspot is desirable.

Enderman · 2018-03-13T05:55:19.000Z

start90a:

I know that cprpna heppens in reflector flashlight cause of the led is not a source perfectly fitting the focus point of the paraboliod.
If the focus is in the center of the led, every other lighting source os not collimated to the distance, so that it’s created a corona.

We all know that WL20 has not any reflector…but someone saw a light around the spot.

Uh, no, corona happens in reflector flashlights because the distance from the LED to the reflector surface varies largely.

A lens has all the refracting surface at almost the same distance from the LED.
Of course it depends on the lens F number though, but there is close to 0 corona compared to a forward-facing reflector.

Any “spill” people re talking about is simply tray light that is not collimated properly, this happens with even the best aspheric flashlights, there is always a bit of light reflecting around on the inside.

Rusty_Joe · 2018-03-13T07:35:36.000Z

Um, I’m thinking we’re soon going to have to start worrying about retinal damage.

Enderman · 2018-03-13T13:56:27.000Z

Rusty Joe:

Um, I’m thinking we’re soon going to have to start worrying about retinal damage.

Only if the laser light leaks out it is possible.

lawallac · 2018-03-13T16:37:04.000Z

So is the laser below the phosphor layer or is it above it shining onto it? If it is below it, could this not also use a LR collar like a conventional LED? This or dual or even multi sided laser stimulation in the case of a spherical geometry phosphor.

Enderman · 2018-03-13T19:39:46.000Z

It is below.
Yes it could use a collar to potentially double the intensity.
Multiple lasers could increase output but the main limitation is the phosphor, which heats up a lot depending on how much laser power you have concentrated on it.
I’m pretty sure a single laser is more than enough to cause the phosphor to burn, since it can be up to 6W of power (not in this flashlight though obviously)

Agro · 2018-03-14T06:14:31.000Z

Yeah, a collar may help this flashlight but only because they didn’t push the tech anywhere near its potential.

bmengineer · 2018-04-16T17:18:31.000Z

Acebeam’s product page now states “Sorry - this product is no longer available”. Was that text always there, or has this launch been cancelled?