100Mcd LEP - Laser Phosphor Wheel

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Robin Dobbie
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There is no light at the center and just a halo ring of light getting larger as I zoom out. haha pretty garbage flood.

Worlds most complicated maglite! lol

gravelmonkey
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I guess the real question is… When are these for sale? Evil

Enderman
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likevvii wrote:

I thought If I added an actuator to the parabolic mirror, I could achieve flood mode too! I was very wrong.
The result is EXACTLY like Robin Dobbie’s GIF. There is no light at the center and just a halo ring of light getting larger as I zoom out. haha pretty garbage flood.

It seems some kind of lens needed in the system to have a useful flood mode.


Yeah, defocusing a reflector doesn’t work because the points on the parabola are at different distances from the LED.
This means that the center part defocuses a lot faster than the outer part because it is closer, which causes a donut shaped light.
With a lens this is not as extreme, since the points are not at such huge different distances, but it still does happen.
.
Creating a larger spot without a donut hole involves changing the diameter of the light source (aka the lit spot on the phosphor)
This can be done by defocusing the lasers, vibrating or moving them very quickly, or using a precollimator lens to magnify the source (if using an LED)

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