22: Ocular Aberrations Flashcards
1
Q
describe an ideal optical system
A
- a point object is a source of spherical wavefronts
- wavefronts converge to ideal image position and are spherical
- the rays converge to an exact point focus at the ideal image position
2
Q
what is one thing the accommodation system relies on
A
the presence of longitudinal chromatic aberration
3
Q
what are the 3 main representations of aberrations
A
- wavefront
- longitudinal
- transverse (or lateral)
4
Q
what is the wavefront aberration
A
is the departure of the actual wavefront from the ideal wavefront (or reference sphere) at a particular point in the exit pupil
5
Q
list the mathematical representations of aberrations
A
- Seidel aberrations
- rectangular Taylor polynomial series
- Zernike polynomial series
6
Q
what is one pro of the rectangular taylor polynomial series
A
the addition of higher order terms allows modeling of more complicated wavefront surfaces
7
Q
what is the most popular wavefront representation?
A
Zernike polynomial series
