Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] rainbow



Richard Bowman said our eyes are not CRTs. That's true, but I think we can make a pretty interesting statement that eyes and CRTs are like inverses of each other.

The CRT screen is RGB phosphors arranged in a curved two dimensional array. The picture displayed on the CRT begins as a stream of electrical signals sent to the CRT phosphors to make the correct phosphors light.

In the eye, we have a curved two dimensional array of three sensors, somewhat RGB, that receive light and create electrical signals.

Essentially the eye is a CRT in reverse.


Michael D. Edmiston, Ph.D.
Professor of Chemistry and Physics
Bluffton University
1 University Drive
Bluffton, OH 45817
419.358.3270
edmiston@bluffton.edu