Sentences with phrase «perfect circle of light»
When the observer, the lens, and the distant light source are precisely aligned, the observer sees an Einstein ring: a perfect circle of light that is the projected and greatly magnified image of the distant light source.
https://www.sciencedaily.com/ Not exact matches
When the lensing approaches perfect symmetry, a complete or almost complete circle of light is produced, called an «Einstein ring».
When spinning, they form a perfect circle of colored light.