POV display

2007-11-20T19:56:26Z

222.190.118.5:

[http://www.webangel.biz/pic/guestbook_163/data/tmp/xbtlkh.html att wirless] [http://www.ling.umd.edu/dokuwiki/data/pages/colloquium/sug002/cgplop.html download cool ringtones] [http://bowch.co.uk/2007/10/digital/uvfmbr.html free marriage license search] [http://www.itosn.com/enginuityblog/media/mp3/pdgubp.html laminator] [http://www.webangel.biz/pic/guestbook_163/data/tmp/sqoqxm.html childrens stride rite shoes] [http://www.itosn.com/enginuityblog/media/mp3/bfikil.html women in bed] [http://www.ling.umd.edu/dokuwiki/data/pages/colloquium/sug002/fswfkd.html midi ringtone] [http://www.france4u.co.uk/files/cache/qubvft.html bathroom vanities online] [http://www.itosn.com/enginuityblog/media/mp3/pttekb.html sexy costumes] [http://moving-minds.org/cms/images/banners/small/pqoirr.html tatoos] [http://bowch.co.uk/2007/10/digital/khjmeh.html buy viagra now] [http://winlines.co.uk/catimages/thumbs/idxcfd.html tampa international airport] [http://www.webangel.biz/pic/guestbook_163/data/tmp/npcvjf.html wireless internet pc card] [http://winlines.co.uk/catimages/thumbs/bmjhnm.html free lesbian porn] [http://www.digitalencore.co.uk/wp-content/plugins/scrobbler/cache/image/xugcgx.html side effects] [http://www.photony1.co.uk/blog/media/images/ugrxph.html anal penetration] [http://www.target-marketing.co.uk/store/pear/tmp/errors/dtvvxs.html pic pussy squirting] [http://www.kiernanauctioneers.com/Profile/cache/brcrwk.html fossil watches] [http://www.itosn.com/enginuityblog/media/mp3/tqibcg.html peace sign] [http://www.webangel.biz/pic/guestbook_163/data/tmp/boowlx.html liver disease symptom] [http://bowch.co.uk/2007/10/digital/ficpfw.html airline] [http://www.kiernanauctioneers.com/Profile/cache/twcqgl.html rental furniture] [http://www.webangel.biz/pic/guestbook_163/data/tmp/voorpb.html triple penetration galleries] [http://www.dlk-recruitment.co.uk/db_log/tmp/wmacvq.html blue tooth wireless] [http://ast.edu/widgets/cjremu.html buy codeine] [http://www.kiernanauctioneers.com/Profile/cache/ppjgat.html wwe smackdown] [http://www.kiernanauctioneers.com/Profile/cache/mmbfqx.html hot arabic girls] [http://www.lsitalian.co.uk/linkmachine/resources/lm_images/pics/hnouwo.html pantyhose] [http://www.itosn.com/enginuityblog/media/mp3/irrsmn.html buy adipex online] [http://bowch.co.uk/2007/10/digital/kgouir.html wholesale cigarette] [http://winlines.co.uk/catimages/thumbs/hqxdwg.html dildo sex movie] [http://www.itosn.com/enginuityblog/media/mp3/vgwgll.html free big boobs] [http://winlines.co.uk/catimages/thumbs/qncsdq.html see through bra] [http://bowch.co.uk/2007/10/digital/qwtwwn.html www marthastewart com] [http://speechland.co.uk/resources/cache/skin_cache/tmp/ckhbhs.html reductil] [http://www.kiernanauctioneers.com/Profile/cache/fewmog.html disney kids] [http://ast.edu/widgets/slwimr.html buy provigil] [http://www.photony1.co.uk/blog/media/images/mubxwk.html asian adult movie] [http://www.photony1.co.uk/blog/media/images/plaajx.html chevy cavalier] [http://www.itosn.com/enginuityblog/media/mp3/uukkri.html coach outlet stores] [http://moving-minds.org/cms/images/banners/small/rxsxte.html alaska airlines reservations] [http://www.lsitalian.co.uk/linkmachine/resources/lm_images/pics/txvbax.html dick] [http://www.goodpeopledobadthings.com/v3profiles/members/uploads/thumbs/tixgtd.html mature sluts] [http://www.goodpeopledobadthings.com/v3profiles/members/uploads/thumbs/pjigbs.html swinger club] [http://www.webangel.biz/pic/guestbook_163/data/tmp/reifdg.html celtic designs] [http://www.photony1.co.uk/blog/media/images/ftogvq.html cheap printer] [http://bowch.co.uk/2007/10/digital/sotnwu.html miniature daschund] [http://winlines.co.uk/catimages/thumbs/fnojwj.html arkansas diamonds] [http://www.dlk-recruitment.co.uk/db_log/tmp/dlbflk.html rolex yacht master] [http://www.dlk-recruitment.co.uk/db_log/tmp/xhlpgu.html army] [http://bowch.co.uk/2007/10/digital/ntgqiu.html financial help] [http://www.photony1.co.uk/blog/media/images/jtjvwc.html kenmore refridgerators] [http://www.lsitalian.co.uk/linkmachine/resources/lm_images/pics/mhaxld.html trimox] [http://www.kiernanauctioneers.com/Profile/cache/kgkexx.html download movie torrents] [http://www.lsitalian.co.uk/linkmachine/resources/lm_images/pics/xearis.html rpg dating game online for free] [http://www.goodpeopledobadthings.com/v3profiles/members/uploads/thumbs/tcvcqa.html actonel] [http://www.kiernanauctioneers.com/Profile/cache/awnnrv.html martha stewart lawn furniture] [http://moving-minds.org/cms/images/banners/small/vejvep.html catherine bell nude] [http://www.itosn.com/enginuityblog/media/mp3/hidljm.html vin numbers] [http://www.target-marketing.co.uk/store/pear/tmp/errors/xxtsxe.html hp] [http://www.goodpeopledobadthings.com/v3profiles/members/uploads/thumbs/fxrqsh.html mile high club] [http://hanhambaptist.com/images/send/thumbs/scjfco.html screwing] [http://www.photony1.co.uk/blog/media/images/oaettd.html combivent] [http://bowch.co.uk/2007/10/digital/sfvwhj.html jewelry armoire] [http://hanhambaptist.com/images/send/thumbs/prtkdo.html free porn thumbs] [http://www.target-marketing.co.uk/store/pear/tmp/errors/ibdpmd.html loans for bad credit] [http://winlines.co.uk/catimages/thumbs/gxvdju.html dldvds] [http://www.target-marketing.co.uk/store/pear/tmp/errors/nledwk.html indian porno] [http://www.photony1.co.uk/blog/media/images/ugwupm.html ebay canada] [http://www.itosn.com/enginuityblog/media/mp3/ustvnr.html sado] [http://www.itosn.com/enginuityblog/media/mp3/kaubmi.html zyvox] [http://winlines.co.uk/catimages/thumbs/ddxxcq.html gaping anal] [http://www.kiernanauctioneers.com/Profile/cache/bhkfkv.html kia cars] [http://www.goodpeopledobadthings.com/v3profiles/members/uploads/thumbs/uleear.html motorcycle pictures] [http://www.digitalencore.co.uk/wp-content/plugins/scrobbler/cache/image/mkkvxb.html church fundraisers] [http://www.dlk-recruitment.co.uk/db_log/tmp/mgowlq.html bibles online] [http://www.webangel.biz/pic/guestbook_163/data/tmp/shthkr.html upper deck] [http://www.digitalencore.co.uk/wp-content/plugins/scrobbler/cache/image/tlelub.html female bondage] [http://bowch.co.uk/2007/10/digital/hqlnct.html photo woman] [http://bowch.co.uk/2007/10/digital/gjjvfh.html guitar] [http://bowch.co.uk/2007/10/digital/kvboru.html american furniture warehouse] [http://www.photony1.co.uk/blog/media/images/gsvahq.html wheels] [http://www.target-marketing.co.uk/store/pear/tmp/errors/hraajc.html reynolds aluminum siding] [http://www.dlk-recruitment.co.uk/db_log/tmp/qipgft.html tooth whitening] [http://bowch.co.uk/2007/10/digital/wxlheu.html pen pals] [http://www.kiernanauctioneers.com/Profile/cache/evolvq.html chanel caviar handbag] [http://www.itosn.com/enginuityblog/media/mp3/xwiifl.html hardcore lesbian sex] [http://www.france4u.co.uk/files/cache/hnirld.html surgical instrument] [http://www.ling.umd.edu/dokuwiki/data/pages/colloquium/sug002/ukedws.html adipex online] [http://moving-minds.org/cms/images/banners/small/gcdpdh.html t mobile text messaging] [http://www.photony1.co.uk/blog/media/images/fkqbcl.html levitra] [http://www.itosn.com/enginuityblog/media/mp3/bvhkqk.html florida loan] [http://www.kiernanauctioneers.com/Profile/cache/ulwccq.html note buyers] [http://www.webangel.biz/pic/guestbook_163/data/tmp/sfikvw.html holter monitor] [http://ast.edu/widgets/khadbp.html download music ringtones] [http://www.ling.umd.edu/dokuwiki/data/pages/colloquium/sug002/ofoxtf.html buy amoxicillin] [http://www.goodpeopledobadthings.com/v3profiles/members/uploads/thumbs/pdjdln.html key satelite] [http://www.kiernanauctioneers.com/Profile/cache/luffdi.html ford thunderbird repair manual] [http://www.target-marketing.co.uk/store/pear/tmp/errors/vnkgow.html headstone] [http://www.photony1.co.uk/blog/media/images/riclbo.html clonidine] [http://diamondtennisbracelet.smurks.info/ diamond tennis bracelet] [http://greendaybrainstew.smurks.info/ green day brain stew] [http://rci-timeshare.fungin.info/ rci timeshare] [http://sexyathletes.smurks.info/ sexy athletes] [http://shahee.info/lib/dustin.html dustin] [http://nick-hotel.fungin.info/ nick hotel] [http://ceilingtiles.smurks.info/ ceiling tiles] [http://mike-hersh-articles.fungin.info/ mike hersh articles] [http://shahee.info/lib/kirstens-room.html kirstens room] [http://finish.fungin.info/ finish] [http://clear-channel-outdoor.fungin.info/ clear channel outdoor] [http://weight-benches.fungin.info/ weight benches] [http://avi-player.fungin.info/ avi player] [http://shahee.info/lib/hughes-net.html hughes net] [http://gastric-band.fungin.info/ gastric band] [http://picture-search.fungin.info/ picture search] [http://shahee.info/lib/girl-webcam.html girl webcam] [http://shahee.info/lib/laptop-cases.html laptop cases] [http://color.fungin.info/ color] [http://eurodollarconversion.smurks.info/ euro dollar conversion] [http://eminem.smurks.info/ eminem] [http://waystomakemoneyonline.smurks.info/ ways to make money online] [http://martindale.smurks.info/ martindale] [http://shahee.info/lib/texas-snakes.html texas snakes] [http://dew-point.fungin.info/ dew point] [http://shahee.info/lib/toasters.html toasters] [http://amtrack.smurks.info/ amtrack] [http://recentsearches.smurks.info/ recent searches] [http://airwalk-shoes.fungin.info/ airwalk shoes] [http://shahee.info/lib/cartoon-car.html cartoon car] [http://maronda-homes.fungin.info/ maronda homes] [http://shahee.info/lib/leather-belt-spanking.html leather belt spanking] [http://boatpropellers.smurks.info/ boat propellers] [http://tonneau-covers.fungin.info/ tonneau covers] [http://shahee.info/lib/gorillaz-demon-days.html gorillaz demon days] [http://shahee.info/lib/mp3-dinle.html mp3 dinle] [http://solia-flat-irons.fungin.info/ solia flat irons] [http://shahee.info/lib/molly-pitcher.html molly pitcher] [http://shahee.info/lib/world-naked-bike-ride.html world naked bike ride] [http://shahee.info/lib/dooney-bourke-outlet-store.html dooney bourke outlet store] [http://billymartin.smurks.info/ billy martin] [http://shahee.info/lib/italian-furniture.html italian furniture] [http://panasonicplasmatelevision.smurks.info/ panasonic plasma television] [http://televisionphysician.smurks.info/ television physician] [http://shahee.info/lib/scarlett-johansson-naked.html scarlett johansson naked] [http://eden-mor.fungin.info/ eden mor] [http://shahee.info/lib/teen-tits.html teen tits] [http://shahee.info/lib/trek-bikes.html trek bikes] [http://plussizewomen.smurks.info/ plus size women] [http://shahee.info/lib/portable-restroom.html portable restroom] [http://shahee.info/lib/move.html move] [http://bridalshowergiftideas.smurks.info/ bridal shower gift ideas] [http://bigfatpussy.smurks.info/ big fat pussy] [http://sexy-thighs.fungin.info/ sexy thighs] [http://christinamodeltorrent.smurks.info/ christinamodel torrent] [http://chatting.smurks.info/ chatting] [http://bustymature.smurks.info/ busty mature] [http://shahee.info/lib/cc-registry-cleaner.html cc registry cleaner] [http://gas-scooter.fungin.info/ gas scooter] [http://shahee.info/lib/truck-floor-mats.html truck floor mats] [http://elves.smurks.info/ elves] [http://shahee.info/lib/ultra-passwords.html ultra passwords] [http://air-hose-reel.fungin.info/ air hose reel] [http://highschoolscienceprojects.smurks.info/ high school science projects] [http://tabitha-cash.fungin.info/ tabitha cash] [http://conan-the-barbarian.fungin.info/ conan the barbarian] [http://bloodsex.smurks.info/ blood sex] [http://guttermouth.fungin.info/ guttermouth] [http://funnysexcartoons.smurks.info/ funny sex cartoons] [http://jenniegarthnude.smurks.info/ jennie garth nude] [http://shahee.info/lib/wholesale-party-favors.html wholesale party favors] [http://shahee.info/lib/poems-about-love.html poems about love] [http://giftbaskets.smurks.info/ gift baskets] [http://titleist-golf-balls.fungin.info/ titleist golf balls] [http://mailorderbrides.smurks.info/ mail order brides] [http://shahee.info/lib/pokemon-sex.html pokemon sex] [http://sattelitekeys.smurks.info/ sattelite keys] [http://shahee.info/lib/shemales-masturbating.html shemales masturbating] [http://musclemagazine.smurks.info/ muscle magazine] [http://shahee.info/lib/hairdos.html hairdos] [http://shahee.info/lib/cheap-jewelry.html cheap jewelry] [http://animaldicks.smurks.info/ animal dicks] [http://chicagoillinoisrealestate.smurks.info/ chicago illinois real estate] [http://shahee.info/lib/fha-home-loan.html fha home loan] [http://gatesmcfaddennude.smurks.info/ gates mcfadden nude] [http://shahee.info/lib/knickers.html knickers] [http://haunteddollhouse.smurks.info/ haunted doll house] [http://seetherbroken.smurks.info/ seether broken] [http://waitwhispersong.smurks.info/ wait whisper song] [http://panasonic-plasma.fungin.info/ panasonic plasma] [http://cane.fungin.info/ cane] [http://boot-disk.fungin.info/ boot disk] [http://purple-crystal-stretch-bracelet.fungin.info/ purple crystal stretch bracelet] [http://freesextips.smurks.info/ free sex tips] [http://teenageass.smurks.info/ teenage ass] [http://teennaturists.smurks.info/ teen naturists] [http://shahee.info/lib/birth-certificate.html birth certificate] [http://phillies.fungin.info/ phillies] [http://nitrostat.smurks.info/ nitrostat] [http://nudistvideos.smurks.info/ nudist videos] == POV display ==

A "persistence of vision display" (POV display) has only a single line of LEDs blinking on and off.
The display mechanically sweeps it across a person's field of view,
giving the illusion of a 2D display.

''(Do I need a diagram or a picture here?)''

(Nearly all LED displays in microwave ovens and alarm clocks electrically sweep the digits across a person's field of view, giving the illusion that it's displaying all 4 digits of the time "12:55" when actually only one digit is illuminated at any one instant).

[[User:DavidCary]] is building yet another "POV display".

I plan on putting a few features into my display that I haven't seen in any other so far:

* bright blue LEDs (even though blue is usually the most expensive color ... although sometimes "true green" is even more expensive than blue).
* no slip rings -- just pumping energy across an air gap
* ... and a few other features that I'm keeping hush-hush.

I want lots of lumens.
Unfortunately, when I go to pick LEDs out of the catalogs, they're not
rated in lumens, they're rated in candelas.

Is it even possible to estimate "lumens" from the catalog information?

Do you know what the difference is? Does your flashlight really
produce 10 times the light ( in lumens)? Or does the flashlight merely
focus its light on a tiny spot, so that that spot gets 10 times as
many candelas ?

For example, check out these 2 LEDs:
$8.75 SSP-LX6144C7UC : 4000 mcd at 120 mA
$8.75 SSP-LX6144D7UC : 1800 mcd at 120 mA

From the mcd rating, it appears that the first one is more than 2wice
as bright -- and it is, if you're directly in front of it when you
look at it.
However, if you're even the tiniest bit off-center, the second one is
much brighter -- in fact, the total lumens that second LED puts out
(2500 mlm) is slightly more than the total lumens than the first one.
If you diffuse the light and try to light up a whole room with an
array of them, the second one will make the room brighter.

I'm currently planning on using these in my first POV display:
* $1.32 Telux TLWB7900 : blue : 330 mlm, 231 mcd at 50 mA. (price in ones from http://Newark.com/ )

Other LEDs I considered using in my POV display (and may re-consider for my next one):

* $18.89 "Lamina light engine" BL-22B1-0140 : 22000 mlm at 420 mA. (this price includes the required heat sink -- price in ones from http://Digikey.com/ ). This has the most lumens per dollar I've found so far (for blue LEDs).
* $8.750 Sunbrite LuxLEDs SSP-LX6144D7UC blue: 120 mA, 2500 mlm, 1800 mcd (Odd that the red Sunbrite LuxLEDs are cheaper at Newark, the other colors cheaper at Digikey.) cheapest $/lumen blue LED, except for the "light engine"
* $2.550 Lumex "DSP LED" 67-1876-ND: blue, 5 mm, 2500 mcd ( DigiKey ) apparently have some kind of internal chip. All colors run at 2.0 V nominal (1.5 V minimum) (rather than running on current like most LEDs. unfortunately, the data sheet doesn't suggest how much current they take -- I presume more than 20 mA).
* $1.600 Sunbrite "based LED" SSP-01TWB7UWB12 (441-1007-ND) blue 10 mm 20 mA 7000 mcd
* $5.980 GM5WA06270A SMT RGB (35 mA red, 35 mA green, 35 mA blue) 3000 mcd (full color range -- apparently used for digital camera flash ?) (Digikey)
* Mouser: hi-power LEDs ( http://www.mouser.com/search/refine.aspx?Ntt=LEDs hi-power ) shows "lumens" directly -- exactly what I wanted.

== further reading ==
Spoke-POV and propeller clocks links:

* An entire discussion forum devoted to POV displays http://www.ladyada.net.nyud.net:8090/forums/viewforum.php?f=11
** In particular, lots of nice pictures http://www.ladyada.net.nyud.net:8090/forums/viewtopic.php?p=4712
** 'no-microcontroller-programmer-needed' minipov http://www.ladyada.net.nyud.net:8090/forums/viewtopic.php?t=32
* LEDtoy on Sourceforge http://ledtoy.sourceforge.net/
* Ian’s Spoke POV http://www.ianpaterson.org/projects/spokepov20050704/index.htm
* "Propeller Clock" Mechanically Scanned LED Clock: by Bob Blick http://www.bobblick.com/techref/projects/propclock/propclock.html (I think this is the original POV display)
* micro POV display http://positron.org/projects/mpov/ small enough for "glueing it to my shaved head."
* [http://www.rickard.gunee.com/projects/mechscan/dualpic/gamesys.php "Virtual Game System - A game console with a mechanically scanned display."] can play [http://www.rickard.gunee.com/projects/mechscan/dualpic/tetris.php Virtual Tetris] by Rickard Gunée.

----

Is this http://led-display-and-design-swicki.eurekster.com/ relevant?

I think so--[[User:71.234.233.163|71.234.233.163]] 18:06, 22 June 2007 (PDT)

OpenCircuits - User contributions [en]

POV display