According to wikipedia,
A rainbow is an optical and meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets...
Given that we require reflection, refraction and dispersion to take place, I was quite intrigued when I saw that the reflection of light on the TV has scattered into a rainbow.
This is how the light looks like: 
Can somebody explain this phenomenon?
Also the shape of the light in the reflection seems interesting, reminds me of interference patterns. I mean the light source is simply circular in shape. Any comments on that?
Answer
I think the regular pattern of pixels in your LCD screen acts like a diffraction grating, almost like the surface of a CD. I'm not suggesting that it is the pixels themselves but perhaps some finer, repetitive structure.
No comments:
Post a Comment