Portfolio: Martin Kimbell's 'Light Paintings'
Portfolio: Martin Kimbell's 'Light Funnel' pictures
Photo by Martin Kimbell, used with permission
How do you create the 'light funnel' effect?
My main tool for creating the light patterns is an LED hoop I made. It's a fairly simple design, I wire up a battery pack, a switch and as many LEDs as I want and then tape it to a hula hoop, then I just throw the hoop and see what happens.