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Spherical Aberration (3rdorder Seidel)

F. L. Pedrotti and L. S. Pedrotti, Introduction to Optics, 2ndEd., Prentice Hall, New Jersey, 1993

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Aberrations (3rdorder Seidel)

F. L. Pedrotti and L. S. Pedrotti, Introduction to Optics, 2ndEd., Prentice Hall, New Jersey, 1993

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Aberrations (3rdorder Seidel)

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Aberrations (3rdorder Seidel)

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Spherical Aberration

http://amazing-space.stsci.edu/resources/explorations/groundup/lesson/basics/g11/

http://en.wikipedia.org/wiki/Lens_(optics)

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Comparison of the Spherical Aberration

of a Plano-Convex Lens and a Convex-Plano Lens

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Spherical Aberration of a Biconvex Lens

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Spherical Aberration of a Dielectric Sphere

h (mm) f (mm)

5 50.4

10 49.4

15 47.6

20 45.0

25 41.6

30 37.3

35 31.8

40 24.8

45 15.8

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Spherical Aberration

Shape Factor

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Spherical Aberration (3rdorder)

Jenkins and White, Fundamentals of Optics, 4thEd., McGraw-Hill, 2001

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Spherical Aberration Correction

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Astigmatism

http://www.handprint.com/ASTRO/ae4.html

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Astigmatism

Horizontal Focus Vertical Focus

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Astigmatism

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Astigmatism Causes Blurring of the Image

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Coma

http://en.wikipedia.org/wiki/Lens_(optics)

http://www.cheyennezjphotographer.com/photography/lenses-2/

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Coma

http://www.handprint.com/ASTRO/ae4.html

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Field Curvature

http://www.cheyennezjphotographer.com/photography/lenses-2/

http://www.microscopyu.com/tutorials/java/aberrations/curvatureoffield/

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Field Curvature

http://www.handprint.com/ASTRO/ae4.html

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Notice that with a closed iris the distortion is greatly reduced,

however the light gathering power of the lens is also reduced.

Under dim fluorescence conditions the decrease in pixel intensity

may be unacceptable.

Field Curvature

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Distortion

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Pincushion distortion aberration

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Pincushion distortion aberration

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Barrel distortion aberration

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Barrel

Pincushion

Distortion Aberrations

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Chromatic Aberration

Chromatic Aberration Correction

http://en.wikipedia.org/wiki/Lens_(optics)

http://en.wikipedia.org/wiki/Lens_(optics)

h i b i

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Chromatic Aberration

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Chromatic Aberration

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Chromatic Aberration

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