- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
L6-42. Distortion And Correction
Purpose
To illustrate pincushion and barrel distortion and correction thererof.
Equipment
Bright point source with condenser, ground glass screen, coarse wire mesh, iris on tilting holder and separate optical rail, 10cm focal length convex lens, iris, 10cm focal length convex lens & iris.
Suggestions
This is not a really bright display, but is neat because of its application to real optical devices.
Setup Time
10 miuntes.
Images
Description
This is a two-lens system with an iris between, modeling camera or projector lenses. For the purpose of this demonstration there are apertures preceding and following the lens doublet. Closing only the preceding aperture results in barrel distortion, and closing only the following aperture produces pincushion distortion. Closing only the aperture between the two lenses results in no distortion.See below for optical components used.
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See pagesl1. light sources & light rays
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See pagesl2. plane mirrors
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See pagesl3. curved mirrors
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See pagesl4. refraction
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See pagesl5. total internal reflection
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See pagesl6. lenses
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See pagesl7. optical instruments
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See pagesl1. light sources & light rays
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See pagesl2. plane mirrors
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See pagesl3. curved mirrors
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See pagesl4. refraction
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See pagesl5. total internal reflection
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See pagesl6. lenses
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See pagesl7. optical instruments