Hi. I don't want to waste your time, so i'll make this short:
I'm helping with a shoot for a movie, and there's one fairly important scene where a kid grabs a torch:
the sort with an over head handle and all...
and he grabs it out of a drawer. he goes into a dark alley to check something, we see a nice taut beam coming from the torch, and that's what we need this for.
basicly, i'm running into trouble finding a high power light that'd meet that requirement. we need something that hasn't got too much of a spill, and with a nice super-ultra-frigging bright beam coming out of it. it should be able to produce enough light to illuminate the corners where its used, because otherwise we'll have to use our more powerful lights to to light the scene, and the effect will drown out. those requirements are a MUST.
apart from that... i'd LIKE it to be small enough to be pulled out of a drawer, and not clunky or expensive looking enough that it looks like a kid couldn't find it in a home. and i'd like it to be like the one in the picture... just the same type, with the overhead handle, doesn't have to be the exact same thing...
so far, the only solution i can see that i can get fairly fast, is this instructable:
http://www.instructables.com/id/Ultimate-Night-Vision-Headlamp---500+-lumens-with-/?ALLSTEPS
it'll allow me to choose the brightness, and since you build it yourself, you can choose the spread of the lens you get for the LED (there are 5 degree and 15 degree varieties available):
i'm going about this totally blind. and i need to make a decision soon, today, or max tomorrow.
ANY help would be greatly appreciated.
EDIT: I apologize. This probably should have been in the questions section, which i did not notice before.
I'm helping with a shoot for a movie, and there's one fairly important scene where a kid grabs a torch:
the sort with an over head handle and all...
and he grabs it out of a drawer. he goes into a dark alley to check something, we see a nice taut beam coming from the torch, and that's what we need this for.
basicly, i'm running into trouble finding a high power light that'd meet that requirement. we need something that hasn't got too much of a spill, and with a nice super-ultra-frigging bright beam coming out of it. it should be able to produce enough light to illuminate the corners where its used, because otherwise we'll have to use our more powerful lights to to light the scene, and the effect will drown out. those requirements are a MUST.
apart from that... i'd LIKE it to be small enough to be pulled out of a drawer, and not clunky or expensive looking enough that it looks like a kid couldn't find it in a home. and i'd like it to be like the one in the picture... just the same type, with the overhead handle, doesn't have to be the exact same thing...
so far, the only solution i can see that i can get fairly fast, is this instructable:
http://www.instructables.com/id/Ultimate-Night-Vision-Headlamp---500+-lumens-with-/?ALLSTEPS
it'll allow me to choose the brightness, and since you build it yourself, you can choose the spread of the lens you get for the LED (there are 5 degree and 15 degree varieties available):
3) use the latest optics custom-designed for the Luxeon LED's. several companies are now making low-cost lenses for LED's based on the TIR (total internal reflection) principal. These lenses do not have a reflective mirror, and achieve 85%-90% transmission. non-LED lamps lose much more of the light because some of the light shines backwards where it can't be used, and because mirror reflectors are less efficient. typical transmission for reflector-based systems is only 65%.
i'm going about this totally blind. and i need to make a decision soon, today, or max tomorrow.
ANY help would be greatly appreciated.
EDIT: I apologize. This probably should have been in the questions section, which i did not notice before.
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