Recent content by louieatienza

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    Rayovac 6aa spotlight

    I ended up getting one to for the heck of it. Fun light. Very interesting battery system... Also modding would be tough as it appears in their production of an "unbreakable" spotlight it appears the LED and driver are both potted into the reflector assembly. Which is a really cool reflector...
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    XeVision ULTRA 85 .... Beamshots

    Wow....
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    What kind of LED / reflector combo is best for a very NARROW spill / strong hotspot?

    You can cover the center of the lens to reduce spill, it's the rays of light not hitting the reflector that end up causing the "spill"... Or even the aforementioned washer, smaller than the head diameter, that allows the perimeter and center light to pass...
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    Using LEDs with parabolic reflectors...

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    Using LEDs with parabolic reflectors...

    Just to update, I have received both Seanna fixtures... and as a quick and dirty test I did a makeshift setup with a Black Flat and one 18650 cell. It looks almost like a thin laser beam shooting out of the lens! I do have some White Flats coming in, in both 1mm^2 and 2mm^2. I think the 2mm^2...
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    Homemade 24" scratch built & designed reflector

    You know there is a whole community of telescope fanatics who grind their own mirrors and lenses. I'm sure the concept would be pretty similar, but in a larger scale, for reflectors. I would still think some refinement of your surface would be necessary before applying the chrome wrap film.
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    Some of my lights...

    Re: Some of my lights over the years... That's one heluva collection there! Awesome stuff!
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    Using LEDs with parabolic reflectors...

    I have a few projects in the works... I started out toying with Fresnel lenses; fun for cheap. I do have an AceBean X80 for wide flood, and a BLF GT70 for some long throw fun. It's great to see people's reactions when I pull it out of the bag! In the works - an aspheric lens thrower similar...
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    Using LEDs with parabolic reflectors...

    More... http://budgetlightforum.com/node/63188
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    Using LEDs with parabolic reflectors...

    Update: CDI sent me an email saying that the Ledil Seanna assemblies I ordered will ship on 12/4... Not bad considering the 6 week quoted lead time. Efficiency aside, it's a pre-made, engineered product, making it relatively easy to implement. Not exactly DIY but we'll see how good it is in...
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    Using LEDs with parabolic reflectors...

    All the TIRs I've seen are some molded plastic so I'm not so sure of their overall efficiency as to a high end reflector. Also I don't know of any available in larger (over 60mm dia.) so there's a distance limit as well. I can't see why a catadioptric reflector system wouldn't be more...
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    Using LEDs with parabolic reflectors...

    Silent Thunder Ordinance has a couple flashlights that use TIRs... I suppose you have to like the particular beam pattern they produce...
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    Using LEDs with parabolic reflectors...

    According to the sales rep they have a 6 week lead time.... So not holding my breath, but at $50 there are other options. It's nice however that its an integrated unit.
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    Using LEDs with parabolic reflectors...

    CDI sells them for half if I'm not mistaken.... Ill check mouser again but at $50 each that's a bit steep. Just checked to confirm.... I do have 2 on back-order as I'm not exactly in a rush.... 6 weeks is fine for me.
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    Using LEDs with parabolic reflectors...

    I could not find a US supplier that stocks a Ledil Seanna. Because I'm curious, I back-ordered 2 since they're only something like $25 each. They come from Finland. But to me it looks like a lens focusing onto a Fresnel lens. They also claim 94% efficiency and 1* beam dispersion with an...
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