# Looking for a video of an LED in fast time.. **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [November 8, 2014, 9:32pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099 "2014-11-08T21:32:06Z")\ **Posts on this page:** 18\ **Page:** 2
**Author:** ![Space\_Vegetable](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@Space\_Vegetable](https://boards.straightdope.com/u/Space_Vegetable)\ **Post date:** [November 10, 2014, 3:49am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/21 "2014-11-10T03:49:18Z")
> [@Henryunderborn](#): > > I Just want to see the light go out. You don’t need video for that. Just sit and watch one. Within 16 hours or so, perhaps much less, the light will flicker and disappear from view. Then there will be a snoring sound, though you won’t hear it. ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [November 10, 2014, 12:59pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/22 "2014-11-10T12:59:46Z")
Just look for a plot of LED output vs. time, like this one: [https://images.search.yahoo.com/images/view;\_ylt=AwrB8pD3tWBUzyYA8\_yJzbkF;\_ylu=X3oDMTIybjg5OGZsBHNlYwNzcgRzbGsDaW1nBG9pZAM0MGE3Nzg0MTQzNTgxMzM1OGJiOWFiMGYyN2M3ZDRlNQRncG9zAzIEaXQDYmluZw--?back=https%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3F\_adv\_prop%3Dimage%26va%3Dled%2Boutput%2Bvs%2Btime%2Bgraph%26fr%3Dyfp-t-901-s%26tab%3Dorganic%26ri%3D2&w=1024&h=673&imgurl=s.eeweb.com%2Fmembers%2Fjessica\_shoemaker%2Fblog%2F2012%2F03%2F14%2FAnthonyCatalano-Figure4-1331743651.jpg&rurl=http%3A%2F%2Fwww.eeweb.com%2Fblog%2Fanthony\_catalano%2Fadvanced-thermal-control-for-ensuring-led-lifetime1&size=63.2KB&name=Chart+showing+the+influence+of+drive+current+on+\LED\<%2Fb\>+degradation.&p=led+output+vs+time+graph&oid=40a77841435813358bb9ab0f27c7d4e5&fr2=&fr=yfp-t-901-s&tt=Chart+showing+the+influence+of+drive+current+on+\LED\<%2Fb\>+degradation.&b=0&ni=288&no=2&ts=&tab=organic&sigr=12uac7lsc&sigb=13ptt1rjr&sigi=12se5umtf&sigt=12717lrsj&sign=12717lrsj&.crumb=KF3D/tqJmTZ&fr=yfp-t-901-s](https://images.search.yahoo.com/images/view;_ylt=AwrB8pD3tWBUzyYA8_yJzbkF;_ylu=X3oDMTIybjg5OGZsBHNlYwNzcgRzbGsDaW1nBG9pZAM0MGE3Nzg0MTQzNTgxMzM1OGJiOWFiMGYyN2M3ZDRlNQRncG9zAzIEaXQDYmluZw--?back=https%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3F_adv_prop%3Dimage%26va%3Dled%2Boutput%2Bvs%2Btime%2Bgraph%26fr%3Dyfp-t-901-s%26tab%3Dorganic%26ri%3D2&w=1024&h=673&imgurl=s.eeweb.com%2Fmembers%2Fjessica_shoemaker%2Fblog%2F2012%2F03%2F14%2FAnthonyCatalano-Figure4-1331743651.jpg&rurl=http%3A%2F%2Fwww.eeweb.com%2Fblog%2Fanthony_catalano%2Fadvanced-thermal-control-for-ensuring-led-lifetime1&size=63.2KB&name=Chart+showing+the+influence+of+drive+current+on+%3Cb%3ELED%3C%2Fb%3E+degradation.&p=led+output+vs+time+graph&oid=40a77841435813358bb9ab0f27c7d4e5&fr2=&fr=yfp-t-901-s&tt=Chart+showing+the+influence+of+drive+current+on+%3Cb%3ELED%3C%2Fb%3E+degradation.&b=0&ni=288&no=2&ts=&tab=organic&sigr=12uac7lsc&sigb=13ptt1rjr&sigi=12se5umtf&sigt=12717lrsj&sign=12717lrsj&.crumb=KF3D/tqJmTZ&fr=yfp-t-901-s) This shows the effect of different drive currents. Not surprisingly, the lower the current, the longer the life. Note that the time scale is logarithmic. I have no idea which LED this is for, but it came up almost immediately in my search, and illustrates my point. You’re not likely to find that anyone has made an (incredibly dull and boring – even Andy Warhol would think so) intense time-lapse video of this, but they’ve done the experiment and plotted that data. ---
**Author:** ![BubbaDog](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bubbadog/32/333_2.png) [@BubbaDog](https://boards.straightdope.com/u/BubbaDog)\ **Post date:** [November 10, 2014, 2:13pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/23 "2014-11-10T14:13:08Z")
> [@njtt](#): > > How would you be able to distinguish it from a real time video of an LED that is on for a short time, then gets switched off? Well thanks for ruining my surprise! ---
**Author:** ![Henryunderborn](https://avatars.discourse-cdn.com/v4/letter/h/58f4c7/32.png) [@Henryunderborn](https://boards.straightdope.com/u/Henryunderborn)\ **Post date:** [November 10, 2014, 2:16pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/24 "2014-11-10T14:16:49Z")
Is it so inconceivable that someone at either a testing facility, a survey collective or any other such occupations of interactive service, had to record an led light for quality reporting?? The difference of an LED light being shut off versus it being shown in time lapse is. Someone presented an LED light video, in time lapse fashion. Someone, making sense to the presented circumstance. Not, trying to… dissuade, the existence of a chosen course of reality. ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [November 10, 2014, 2:29pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/25 "2014-11-10T14:29:35Z")
> [@Henryunderborn](#): > > Is it so inconceivable that someone at either a testing facility, a survey collective or any other such occupations of interactive service, had to record an led light for quality reporting?? > > The difference of an LED light being shut off versus it being shown in time lapse is. Someone presented an LED light video, in time lapse fashion. > > Someone, making sense to the presented circumstance. Not, trying to… dissuade, the existence of a chosen course of reality. It’s not inconceivable, but, as I point out just a couple of entries above, the data certainly exists in terms of output vs. time. Why would you need to record that information in the form of a video? ---
**Author:** ![cmyk](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cmyk/32/3353_2.png) [@cmyk](https://boards.straightdope.com/u/cmyk)\ **Post date:** [November 10, 2014, 2:57pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/26 "2014-11-10T14:57:05Z")
Here’s what you do: 1. find a place you know you’ll be for at least 30 years. 2. Glue your Bluray player in position, never turn it off. 3. On the other side of the room, set up a digital camera that’ll take one pic of the player’s ON light every night. Also glue that to the wall. 4. When the LED finally fails, you’ll be dead and someone will wonder why some idiot glued some ancient camera to the wall, and will pull it down and throw it away. It’s just that easy! ---
**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\ **Post date:** [November 10, 2014, 3:54pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/27 "2014-11-10T15:54:01Z")
> [@Henryunderborn](#): > > well, im asking for one. What do you say? ---
**Author:** ![Finagle](https://avatars.discourse-cdn.com/v4/letter/f/b19c9b/32.png) [@Finagle](https://boards.straightdope.com/u/Finagle)\ **Post date:** [November 10, 2014, 5:23pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/28 "2014-11-10T17:23:09Z")
> [@Henryunderborn](#): > > Is it so inconceivable that someone at either a testing facility, a survey collective or any other such occupations of interactive service, had to record an led light for quality reporting?? > > The difference of an LED light being shut off versus it being shown in time lapse is. Someone presented an LED light video, in time lapse fashion. > > Someone, making sense to the presented circumstance. Not, trying to… dissuade, the existence of a chosen course of reality. Copy the setup used for [this experiment.](http://www.nature.com/news/world-s-slowest-moving-drop-caught-on-camera-at-last-1.13418) ---
**Author:** ![cmyk](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cmyk/32/3353_2.png) [@cmyk](https://boards.straightdope.com/u/cmyk)\ **Post date:** [November 10, 2014, 7:29pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/29 "2014-11-10T19:29:06Z")
> [@Finagle](#): > > Copy the setup used for [this experiment.](http://www.nature.com/news/world-s-slowest-moving-drop-caught-on-camera-at-last-1.13418) 70 _years!_ ---
**Author:** ![Finagle](https://avatars.discourse-cdn.com/v4/letter/f/b19c9b/32.png) [@Finagle](https://boards.straightdope.com/u/Finagle)\ **Post date:** [November 10, 2014, 9:11pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/30 "2014-11-10T21:11:38Z")
> [@cmyk](#): > > 70 _years!_ It’s a slow pitch league. ---
**Author:** ![cmyk](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cmyk/32/3353_2.png) [@cmyk](https://boards.straightdope.com/u/cmyk)\ **Post date:** [November 11, 2014, 1:22am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/31 "2014-11-11T01:22:06Z")
> [@Finagle](#): > > It’s a slow pitch league. Drop it. ---
**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\ **Post date:** [November 11, 2014, 1:40am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/32 "2014-11-11T01:40:40Z")
This tread is slowly going of the rails… ---
**Author:** ![andrewm](https://avatars.discourse-cdn.com/v4/letter/a/c57346/32.png) [@andrewm](https://boards.straightdope.com/u/andrewm)\ **Post date:** [November 11, 2014, 1:50am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/33 "2014-11-11T01:50:01Z")
> [@Henryunderborn](#): > > Is it so inconceivable that someone at either a testing facility, a survey collective or any other such occupations of interactive service, had to record an led light for quality reporting?? Yes. As typoink alluded to, ordinary video cameras are really not suitable for qualitative brightness assessments. This sort of information would most likely be gathered using a photocell or photodiode - essentially a single “pixel” sensor producing a varying number over time. Manufacturers will typically publish the resulting data in the part’s data sheet as either a single data point (e.g. “Light Degradation after 1000 hours: -4.68% ~ -8.27%”) or an XY graph of brightness with respect to time. ---
**Author:** ![typoink](https://avatars.discourse-cdn.com/v4/letter/t/ecb155/32.png) [@typoink](https://boards.straightdope.com/u/typoink)\ **Post date:** [November 11, 2014, 1:51am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/34 "2014-11-11T01:51:35Z")
> [@Henryunderborn](#): > > Is it so inconceivable that someone at either a testing facility, a survey collective or any other such occupations of interactive service, had to record an led light for quality reporting?? > > The difference of an LED light being shut off versus it being shown in time lapse is. Someone presented an LED light video, in time lapse fashion. > > Someone, making sense to the presented circumstance. Not, trying to… dissuade, the existence of a chosen course of reality. I have seen an LED fail in realtime, more than once. They just turn off. It’s the least visually interesting thing possible. Time lapse video is at least least somewhat costly to make. You’re asking for somebody to allocate resources to possibly the least interesting video they could possibly do. NOW, that said, check in in fifteen years. Due to the proliferation of LED bulbs and more people being interested in long-scale time lapse photography, some videos might naturally capture this event. But…it’ll probably be the most boring part of that video. ---
**Author:** ![cmyk](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cmyk/32/3353_2.png) [@cmyk](https://boards.straightdope.com/u/cmyk)\ **Post date:** [November 11, 2014, 2:31am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/35 "2014-11-11T02:31:26Z")
> [@kayaker](#): > > What do you say? HE SAID HE’S ASKING FOR ONE! Was I being loud? ---
**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\ **Post date:** [November 11, 2014, 12:18pm UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/36 "2014-11-11T12:18:57Z")
> [@cmyk](#): > > HE SAID HE’S ASKING FOR ONE! > Was I being loud? Hasn’t said please yet, though. I for one am sitting on a pile of links _to exactly what the OP wants_. If only he’d ask nicely. ---
**Author:** ![cmyk](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cmyk/32/3353_2.png) [@cmyk](https://boards.straightdope.com/u/cmyk)\ **Post date:** [November 12, 2014, 12:57am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/37 "2014-11-12T00:57:03Z")
> [@kayaker](#): > > Hasn’t said please yet, though. I for one am sitting on a pile of links _to exactly what the OP wants_. If only he’d ask nicely. Ah yes! Y’know **Henry,** saying please can go a long way these days. ---
**Author:** ![Henryunderborn](https://avatars.discourse-cdn.com/v4/letter/h/58f4c7/32.png) [@Henryunderborn](https://boards.straightdope.com/u/Henryunderborn)\ **Post date:** [November 12, 2014, 11:52am UTC](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099/38 "2014-11-12T11:52:19Z")
The part mentioned about art gave me an idea. Multiple LEDs start to finish ps I’m talking about exposed mini bulbs. Like on a circuit board [Previous page](https://boards.straightdope.com/t/looking-for-a-video-of-an-led-in-fast-time/704099.md?page=1)