LED in cell phones?

etc · Dec 7, 2006

Specifically, question what kind of Flashlight is in Nokia 5140?

Some kind of LEd, most likely? 5mm I presume?

Anyone have one of those Nokia candie-bar style phone?

http://www.phonescoop.com/phones/phone.php?p=424

Manzerick · Dec 7, 2006

i have one in a Nextel I860 and I wuold assume it's a 5mm...

In a pinch it's really all I need for basic nav

Led_Blind · Dec 7, 2006

you can always stuff a cree in there. You would have to be keen tho.

etc · Dec 7, 2006

Here is a better pic.

http://www.mobile-review.com/review/nokia-5140i-en.shtml

Anybody knows how many lumens it generates? I am assuming just a couple, like 4-5, similar to a keychain light?

Actually I always wanted a cell phone with a 3x3W module.

Trashman · Dec 7, 2006

I've got the 5140. It's, either, a 5mm or a 3mm, but I'm not sure which. It's dimmer than most keychain lights. It has come in handy, though. It's enough to illuminate a map or navigate though a darned house, but it's probably dimmer than anybody here would hope.

ROVER · Dec 7, 2006

My buddy has a different Nokia "with flashlight" similar to that model. It has one 5mm led recessed in the top. I only played with it a little bit, but I wouldn't say it's one of the best 5mm leds around. You could definately gain some brightness by swapping a premium 5mm led in it, assuming you're okay with opening your phone and good at soldering in tight places.

mmace1 · Dec 7, 2006

I've played with a 2126i (from Tracfone). I always assumed it was probably a 3mm on top, not bright at all, but better than nothing. But perhaps its just a not-so-great 5mm?

The new Sanyo M1 from Sprint has a flashlight in it, not sure how bright though.

Planterz · Dec 7, 2006

The screen is brighter than the LEDs they stick in there. I guess the LED is probably more efficient though.

shao.fu.tzer · Dec 7, 2006

I've got a Nokia 1100 and I've taken it apart on multiple occasions. Appears to be a Nichia 5mm although my knowledge of LEDs if lacking at best. When I get some time I'll extract the LED out of broken one I have lying around here and take some photos. Someone please remind me if I forget. I am always busy.
Shao

SuperNinja · Dec 7, 2006

I have a Nokia 3200.

It uses a couple of surface mount LED's.

It is quite bright, but it cannot compete against a fauxton with fresh batteries.

Here is a 5140 and a 3200 with the LED's on:
http://www.phonescoop.com/articles/nokia_nyc_2003/index.php?pa=2&f=5140_vs_3200_flashlight.JPG

abvidledUK · Dec 7, 2006

I've got one in my Nokia 1101's, I'll leave one on and see how long the battery lasts..

PhantomZ · Dec 7, 2006

i have the 5140. looks to me its a 3mm. its not as bright as the photons or photon clones but its plenty bright enough to walk to my bed with after i turn off the lights. i loved the phone and wish my current phone 6620 had a light. as for the runtime.. it would stay on for a few days i'm sure. i tried leaving it on a day to drain whats left of the battery before i charge it ,but i was impatiant so i turned off the light, charged it and went to bed.

Bill97z · Dec 7, 2006

Sad....CREE stock was down like 20% today because they warned of lower tahn expected earnings this quarter. They said that LED sales for cell phones were lower than expected....oh well.

abvidledUK · Dec 10, 2006

abvidledUK said:
I've got one in my Nokia 1101's, I'll leave one on and see how long the battery lasts..

4 days, 100 hours I stopped the run.

Battery nearly depleted.

Nokia BL5C li-ion battery

CELICA XX · Dec 13, 2006

My wife has a cheap Kyocera K493 (I think) cell phone with a built in LED flashlight.

It looks like one 5mm LED.

Trashman · Dec 14, 2006

Planterz said:
The screen is brighter than the LEDs they stick in there. I guess the LED is probably more efficient though.

Nope, not the case at the all. The LED in my 5140 is way brighter than the screen.

TORCH_BOY · Dec 14, 2006

Mine also has a LED in the top, its only bright enough to illuminate a keyhole

morituri · Dec 14, 2006

I have the Nokia 1100 as a backup phone. I'm glad to hear that it can act as a backup LED flashlight as well ... 100 hours runtime is excellent ;-)

LED in cell phones?

etc

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Manzerick

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Led_Blind

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etc

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Trashman

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ROVER

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mmace1

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Planterz

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shao.fu.tzer

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SuperNinja

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abvidledUK

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PhantomZ

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