geepondy
Flashlight Enthusiast
What does the beam look like? Why is such intense magnification necessary? I would assume of multiple Luxeon Star lights were built, you wouldn't have individual optics/magnifiers like the Arc LS has.
Luxeon Star without optics?
- Thread starter geepondy
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The optics do an incredible job in the LS...It does not look any where near as bright without...Thats not to say it could not perform well with the right reflector...just have not heard of a rflector that performed as well as the optics...maybe soon.
D
**DONOTDELETE**
Guest
Without the collimator, the LS has a viewing angle of 110 degrees. With the collimator, it's only 10 degrees.
Thus the LS "looks" much dimmer without the optics, especially outdoors where there's little to reflect peripheral photons.
However, within in a small waveguide volume (a closet, for example), the LS without optics is actually 10% brighter, since the LS/O collimator is only 90% efficient at passing light.
Thus the LS "looks" much dimmer without the optics, especially outdoors where there's little to reflect peripheral photons.
However, within in a small waveguide volume (a closet, for example), the LS without optics is actually 10% brighter, since the LS/O collimator is only 90% efficient at passing light.
Actually, today I recieved my Luxeons with optics, and well, I'm kind of disappointed. I've done two mods with bare Luxeons and they both produce a much better beam than the intregal optics. The Energizer Double Barrel mod focuses a much tighter and brighter beam. The Mag Lite 3D cell does the best job. The DB will throw a useful beam 100ft, and the Mag about 300ft. The built in optics throw a beam (soft) about 10ft. So it's what you want that matters, area or spot light.
Just for reference: The Mag can adjust the beam, but it'a not very useful out of focus, but is very tight (about 4ft spot at 50ft) when focused. The DB makes a 4ft spot at about 25 ft.
Just for reference: The Mag can adjust the beam, but it'a not very useful out of focus, but is very tight (about 4ft spot at 50ft) when focused. The DB makes a 4ft spot at about 25 ft.
NightShift
Enlightened
After I had received two more of my luxeons, i ripped the optics off one of them because I am using it for a dome light in my car. At night its pretty bright and lights up the inside of the car nicely.
When a friend was playing with my custom made luxeon flashlight, he was looking into it without the optics on, then placed the collimator lens back on, he was like
that makes it like 50x brighter with that thing on!
When a friend was playing with my custom made luxeon flashlight, he was looking into it without the optics on, then placed the collimator lens back on, he was like
JoeyL
Enlightened
The lens makes it look a lot brighter if you look into it. I have two lights where I just used the chip itself without the lens and it is really good for an area light, even though it's not really bright. It is perfect in that it is shadowless and it's a lot like a small fluorescent lantern.
D
**DONOTDELETE**
Guest
I agree with joeyL, the light is similar to flourescent lighting. I'm wondering why they don't use the dome on the LS to focus it like all other LEDs use. I like a wide angle light, but the bare LS is a little too broad for me. Optics, on the other hand, are too tight. I'm beginning to sound like Goldylocks.
-Jake-
-Jake-
geepondy
Flashlight Enthusiast
For all of you who have done LS mods without optics, is the yellow corona blotchiness reduced without optics?
I'm an electrical engineering tech, I'm going have to break down and try a mod myself one of these days.
I'm an electrical engineering tech, I'm going have to break down and try a mod myself one of these days.
JoeyL
Enlightened
Actually, since there is no lens which focuses on the chip/die, there is no corona at all and the light cast is even and smooth no matter where it falls. But it is a lot dimmer.
I'll try to post a picture to give an idea.
I'll try to post a picture to give an idea.
