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What is the best 10mm LED light for distance? Answered

HI

I'm making a LED torch and i have purchased some 290000 mcd LED lights.I think i will put them in a ring inside the torch which will allow me to see clearly in front of me.Then i thought i could put a long distance light in the middle would allow me to see out further  but i am unsure of what LED light is best for this task.Basically i am after a LED light that shines really far.

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steveastrouk (author)2011-11-28

Get a bright narrow angle LED, here, the narrower the better.

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Mattdog123 (author)steveastrouk2011-11-28

okay were would i find one of them online.

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lemonie (author)Mattdog1232011-11-28

Narrow angle remember - Google "super bright leds"

L

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Mattdog123 (author)lemonie2011-11-28

Is this light any good?
http://www.superbrightleds.com/moreinfo/component-leds/cree-xre-series-1-watt-white-led-wg-q4/905/

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steveastrouk (author)Mattdog1232011-11-29

Its "bright", but the viewing angle is 90 degrees. You want the same lumens, but more candela, or you want to add one of these. http://www.superbrightleds.com/moreinfo/component-leds/cree-xr-series-xlamp-lens/330/

Adding a lens to the LED is a VERY good way to get more bang for very little actual buck. If you take a 90 deg beam, and squirt it out as a 15 deg beam, it will be 36 x "brighter" - since the area illuminated by the beam is 36 x smaller.

Steve

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Mattdog123 (author)lemonie2011-11-28

Do you what any good lights are?

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lemonie (author)Mattdog1232011-11-28

Not really, only what I have for what I use and I've not built powerful lamps/torches.

L

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Mattdog123 (author)iceng2011-11-28

That looks like a nice LED light what is it and where do you get it?

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iceng (author)2011-11-28

It's a narrow beam 10mm 0range LED used in my
https://www.instructables.com/id/POCKET-THIEF/
instructable 36 Candle Power.

A

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Mattdog123 (author)iceng2011-11-28

how far does this light go clearly do you think?

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iceng (author)Mattdog1232011-11-28

I can plink reflectors across the street.

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rickharris (author)2011-11-28

Brighter = further as long as the beam is narrow. hence Steve and Iceng advice.

I believe it may be worth experimenting with a cheap LED with flattening the end almost to the die (the bit that is the LED) The polish the end smooth and put a standard lense in from for focus.

DO AT YOUR OWN RISK with costly high power LEDS as I have not tied this.

There are LED suppliers that supply lens kits to go with LEDs.

example

http://www.rapidonline.com/Electronic-Components/Optoelectronics/LED-Optics-Mounts

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