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Author Topic: Help me with LEDs !  (Read 2374 times)

Offline Paul-R

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Re: Help me with LEDs !
« Reply #15 on: January 15, 2021, 01:37:26 PM »
Hi dear all !

I want help me on this forum that : Which type of LEDs both captures and emits the most efficient light? Thank you very much !

This is very difficult to answer because the industry is changing so quickly. Check the manufacturers' specs for their candela and luimen numbers.

As for all the bickering above, please bear in mind, TG, that the arbitrariliy imposed convention for current flow, set years and years ago, got it wrong. It is a substantial scientific embarrassment.

If the cionvention says clockwise, the reality is anticlockwise.


Free Energy | searching for free energy and discussing free energy

Re: Help me with LEDs !
« Reply #15 on: January 15, 2021, 01:37:26 PM »

Offline lancaIV

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Re: Help me with LEDs !
« Reply #16 on: January 15, 2021, 01:48:45 PM »
From 100% question orientation related conduction : sol-lector,sollector Lightconductor
Remembering,knowing this (!?) : https://translate.google.com/translate?sl=auto&tl=en&u=https://www.experimentis.de/physikalisches_spielzeug/optisch-optik/glasfaserlampe-glasfaserleuchte-lichtleiter/

here as "diode"
https://translate.google.com/translate?sl=auto&tl=en&u=https://www.welt.de/wissenschaft/article13475451/Sollektoren-fluten-die-dunkelsten-Ecken-mit-Licht.html
Almost a fifth of the world's electricity demand is used for indoor lighting, including during the day. It would be particularly effective in southern countries, but in Germany too, the sun shines for an average of 1700 hours. With the use of collectors, almost 1200 kilowatt hours of electrical energy could be saved. So you would have to equip almost 20 times the area with photovoltaics in order to transport the same amount of light in the building.


                         http://4.bp.blogspot.com/-KeJtLVh9mjw/Tmv_iMxlxII/AAAAAAAAeas/39fxu1mvuUM/s400/013_left_column_01.jpg


https://translate.google.com/translate?sl=auto&tl=en&u=https://www.wohnnet.at/wohnen/licht-schatten/sollektor-23231



 alternatively,other "sollector"  ideas :
https://www.google.com/search?client=firefox-b-d&lei=Vo4BYLnbGfeBjLsP5PCwgAE&q=sollektoren&ved=2ahUKEwi53pjx-53uAhX3AGMBHWQ4DBAQsKwBKAB6BAgZEAE&biw=1366&bih=633

https://translate.google.com/translate?sl=auto&tl=en&u=https://www.basf.com/global/de/media/news-releases/2019/10/p-19-361.html


https://patents.google.com/patent/DE4411067A1/en BASF,Makrolon light concentrator,L.I.S.A.
works like : https://pubs.rsc.org/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C1EE02376D&imageInfo.ImageIdentifier.Year=2012
source :  https://pubs.rsc.org/en/content/articlelanding/2012/ee/c1ee02376d/unauth#!divAbstract




https://www.google.com/search?source=univ&tbm=isch&q=light+concentrator&client=firefox-b-d&sa=X&ved=2ahUKEwj94aGg_53uAhVlQUEAHTOhDpIQjJkEegQIARAB&biw=1366&bih=633
 
https://xpic.x-mol.com/20180824%2F10.1021_acsphotonics.8b00498.jpg  Diode emitting lumen/Watt and colour dependence !

From electricity deliverer to light deliverer ! THE CHANGE ! Conversion : light to electric converter - in situ - !
Glas fiber : cable TV !

Offline tonygiang

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Re: Help me with LEDs !
« Reply #17 on: January 17, 2021, 02:52:46 AM »

Free Energy | searching for free energy and discussing free energy

Re: Help me with LEDs !
« Reply #17 on: January 17, 2021, 02:52:46 AM »
Sponsored links:




Offline lancaIV

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Re: Help me with LEDs !
« Reply #18 on: January 17, 2021, 03:50:53 AM »
tonygiang,hello !
proof of idea ,but uneconomical !
86 mA x 5V = 430 mVA or 0,43 W ! Wp ?

By now 20 cents/Wp for commercial solar cells fob factory this self constructed LED-board by given output is :  +- 10 cents worth !
Measured by % full shiny weather outside ? Why he did not artificial light tests !?

https://en.wikipedia.org/wiki/Sunlight
Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux. Multiplying the figure of 1050 watts per square meter by 93 lumens per watt indicates that bright sunlight provides an illuminance of approximately 98 000 lux (lumens per square meter) on a perpendicular surface at sea level. The illumination of a horizontal surface will be considerably less than this if the Sun is not very high in the sky. Averaged over a day, the highest amount of sunlight on a horizontal surface occurs in January at the South Pole (see insolation).
Dividing the irradiance of 1050 W/m2 by the size of the Sun's disk in steradians gives an average radiance of 15.4 MW per square metre per steradian. (However, the radiance at the center of the sun's disk is somewhat higher than the average over the whole disk due to limb darkening.) Multiplying this by π gives an upper limit to the irradiance which can be focused on a surface using mirrors: 48.5 MW/m2.[8]

intensifier technology example : https://www.offgridenergyindependence.com/articles/19735/low-cost-intensifying-solar-panels

http://www.redrok.com/main.htm#gsc.tab=0





wmbr
OCWL

Offline tonygiang

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Re: Help me with LEDs !
« Reply #19 on: January 17, 2021, 04:23:50 AM »
Hi LancaIV !
I don't need very high performance, I mean is : a compact, not expensive durable self-powered dc power supply ...! Of course we already know there are other possible better designs: like as JT circuits. Because it's just input, self-running forever, low heat generation, cheap and durable because it needs 24/7 operation. I think it's important to get to FE. And then you probably know what to do!

Best regards!

Free Energy | searching for free energy and discussing free energy

Re: Help me with LEDs !
« Reply #19 on: January 17, 2021, 04:23:50 AM »
Sponsored links:




Offline lancaIV

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Re: Help me with LEDs !
« Reply #20 on: January 17, 2021, 04:38:01 AM »
To get solar- or photo-/phono-voltaic converter perpetuum working = 24/7 you need a "closed cycle" concept !


                                           It has to have a reversible work function !

                                                 f.e.     micro-array inventor :
                                                          older :
https://www.amazon.com/Energy-Fluctuations-Power-Conversions-Joseph/dp/1935023055

https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=1&ND=3&adjacent=true&locale=en_EP&FT=D&date=19770118&CC=US&NR=4004210A&KC=A#
                                                         newer : flat diodes

https://books.google.pt/books?id=knyyfeKUTTUC&pg=PA21&lpg=PA21&dq=joseph+yater+patent&source=bl&ots=Y-K5V_dcZ_&sig=ACfU3U2RlQCMgAI09TJCCHu1rgajDuh99A&hl=de&sa=X&ved=2ahUKEwjMrsGo8aLuAhUixYUKHdivDi04ChDoATADegQICBAC#v=onepage&q=joseph%20yater%20patent&f=false

https://worldwide.espacenet.com/patent/search/family/025333771/publication/WO9320589A1?q=pn%3DWO9320589A1

                                                              mosaics/images + description

                                       for easy classical thermoelectric conversion I recommend something like :
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=5&ND=3&adjacent=true&locale=en_EP&FT=D&date=19810324&CC=US&NR=4257822A&KC=A#
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=4&ND=3&adjacent=true&locale=en_EP&FT=D&date=19810217&CC=US&NR=4251291A&KC=A#


                                             Alternatively : not LED related but

24/7 :       https://www.techexplorist.com/hydroelectric-cell-produces-electricity-water-without-using-chemicals/23304/

      https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=5&ND=3&adjacent=true&locale=en_EP&FT=D&date=19280203&CC=FR&NR=633752A&KC=A#


https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=6&ND=3&adjacent=true&locale=en_EP&FT=D&date=19931111&CC=DE&NR=4222678A1&KC=A1#



Sincere
OCWL
p.s. : https://www.google.com/search?client=firefox-b-d&ei=uyQEYKDjHqCI1fAP3OGH-Ak&q=diy+solar+cells+from+scratch&oq=diy+solar+cells+from+scratch&gs_lcp=CgZwc3ktYWIQDDIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeMgYIABAWEB46BAgAEEdQ0cYBWKXbAWCp7QFoAHACeACAAW2IAZoDkgEDMS4zmAEAoAEBqgEHZ3dzLXdpesgBBMABAQ&sclient=psy-ab&ved=0ahUKEwjgrPjL86LuAhUgRBUIHdzwAZ8Q4dUDCAw
possible,to recommend in wintertime,cold air/wind stream  !
https://geo-dome.co.uk/article.asp?uname=solar_mirror
75% concentration more,much ?
https://worldwide.espacenet.com/searchResults?submitted=true&locale=en_EP&DB=EPODOC&ST=advanced&TI=&AB=concentrator&PN=&AP=&PR=&PD=&PA=&IN=winston&CPC=&IC=&Submit=Search
extract  :
https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=25&ND=3&adjacent=true&locale=en_EP&FT=D&date=19910409&CC=US&NR=5005958A&KC=A#
2000 times more or 200 000 % concentration factor   !
« Last Edit: January 17, 2021, 01:09:32 PM by lancaIV »

 

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