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Nipkow disk

one little mehanical tv

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watch video where i get idea and background data and wiki:https://en.wikipedia.org/wiki/Nipkow_disk

  • log 00000011

    estoniahacker • 07/11/2025 at 06:49 • 0 comments

    im wright about first version what i made Nipkow disk that are just testing version  to shutter idea with 4 holes made old CD and screen 1,5X1,5 inch 

    screen area and motor. but if i build future real display like thing then screen get magnification and 90 degree rotation then i can use VGA signals to input 

    i´think about shutter idea if that works maybe works also duple 

    questions what i need to find answers by testing

    are my shutter idea works ? how in details ?

    motors speeds ?  led plink frequents ? how long is vertical lines in one frequents ?

    are every hole or least half can use individual led i think like if made 256 holes disk can that use all holes 1 led  and how long vertical lines can that disk give ?

    and can ardunino run that all 256 led calculation ? are there be possible  also 1024 pixel vertical line ? like you see i have lots of work to do in week.

  • log 00000010

    estoniahacker • 07/10/2025 at 20:15 • 0 comments

    Nipkow disk can´t draw high resolution pictures because that need microscopic holes or house size disks mainly uses 50,100,200,400 horizontal res.

    one trick still can give 2X more without extra holes using blue and red led   

    i also testing quarter shutter what have every hole to disk 4 holes what is little smaller if disks are 1/2 then shutter uses 3/8 inches  every 4 holes are almost 

    same line but first have perfect fits disk hole if first hole what fits and last what not very fit line error be X then first be 0% X fourth be 100% X second be 1/3% X third

    be 2/3% X in  theory that be create 4X more horizontal pixels and shutter need to be faster to disk i think 125-150 but that is wild guess but that all be now only 

    hypotheses 

  • log 00000001

    estoniahacker • 07/10/2025 at 19:49 • 0 comments

    hello i made that project mainly to understand Nipkow Disks.

    mainly Nipkow disk is circular disk where is holes like you can see in schematics

    if that  rotates then that creates picture like CRT display area scanned to point to point only big different are CRT are horizontal scanned then Nipkow disks scan vertically.Because any hole draw one vertical line hole number The number of holes can be found by taking into account the number of parts in the circle

    vertical pixels lines length can change chaining how many led plinks  one hole period. Im not sure if this is true without the assumption  screen to be square and main disk are least 10 times bigger to screen.

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