Persistence of Vision: Intensity of Green Circle?

[bikfreak]

Persistence of Vision!

If you wave a 5mm bright green led in a circle fast
enough you see a green circle (say you attach it to a
bike wheel and spin the wheel). What will the
intensity of that green circle be? Will the light
intensity be smeared throughout the whole
circumference of the circle? Or will the light
intensity of the green circle be similar in light
intensity to the light intensity of that 1 green led?

I am trying to make a persistence of vision display
that would be sunlight visible, so this is why I need
to find an answer somehow. Any help would be
appreciated.

 

[mda]

the intensity will be spread around the circle.

 

[sir-pinski]

The intensity of the green circle in persistence of vision will depend on several factors, including the speed of the rotation, the brightness of the LED, and the sensitivity of the human eye. Generally, the faster the rotation, the more blurred the image will appear and the less intense the green circle will be. However, if the rotation is slow enough, the image may appear more solid and the intensity may be similar to the brightness of the LED.

Furthermore, the intensity of the green circle may also be affected by the ambient light conditions. In a brightly lit environment, the green circle may appear less intense compared to a dark environment.

To create a persistence of vision display that is sunlight visible, you may need to use a brighter LED and/or a slower rotation speed to ensure that the intensity of the green circle is sufficient to be seen in bright light. Additionally, using a color filter or lens may also help to enhance the visibility of the green circle in sunlight.

I hope this helps in your project and good luck with your persistence of vision display!