Degas and the Impressionists were interested in painting the effects of light, and how the human eye sees subjects.

VOA: special.2009.07.12

The others in the direct light sending the same number of photos to your eye.

那些直接处于光线之下的瓷片,向你的眼睛发出了同样多的图片。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Finally,a single ray of light shot from out and fell full upon the vulture eye.

VOA: special.2009.05.16

Gamma-rays are the most energetic form of light, with wavelengths far shorter than ordinary optical light (the light your eye can see), or even ultraviolet or X-ray light.

CNN: Why gamma-ray burst shocked scientists

Normal vision is based on more than one hundred million receptors in each eye that process light, say experts.

WSJ: FDA Approves Bionic Eye

What you see above is an LCD panel that refreshes at 240Hz, and delivering 3D at 60 frames per second to each eye, by using the typical active shutter glasses technique of blocking light to your left eye when the "right" image is displayed, and vice versa for the right eye.

ENGADGET: Sony's 24-inch PlayStation 3D 'dual-view' monitor: here's how it works