Coma Aberration

The contributions to coma aberration from different parts of the lens are shown. Students should be able to discern the reduction of the aberation if only the inner portions of the lens are used, i.e. if the lens were to be "stopped down".

Category:

Education

Tags:

• physical
• science
• optics
• lens
• aberation

[mrg3]

It is an illustration of a type of blurring that occurs in real lenses called coma aberration. The light rays that are going through the lens a little off center get focused a bit off from the ideal focal point. The more off center, the worse the "mis-focus".

[volvoxmusix]

@huslerbling it's coma! beware!

[jock10171017]

This is actually wrong. Coma aberrations cause the peripheral rays to deviate MORE than the paraxial rays, causing the paraxial rays to focus further away from the peripheral retina and the peripheral rays to focus closer to the principal axis. The comet should be with tail pointing UP, not down as you have in your video

[Bikestunt92]

Yey, you solved my mindfuck! Thanks!

[FurzDoktor96]

thats nice!!i look for information like this for already a long time i need it for school^^

greetings from germany

[huslerbling]

wth isdat?!?