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Lenses - Principal Rays

Incident ray, parallel to optical axis, emerges from the lens so as to pass directly or by projection through the second focal point

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Incident ray passes directly or by projection through the first focal point, emerges from the lens parallel to optical axis

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23/03/99 22:53


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Incident ray passes directly or by projection through the first focal point, emerges from the lens parallel to optical axis

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A ray passing through the centre of the lens without deviation or lateral displacement (in the thin lens limit) Lens4.mcd

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Lenses - Chromatic and Spherical Aberrations

White Red rays

Red focus Violet focus

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Red1 and violet rays

23/03/99 22:54

Common focus

Large refractive index, moderate distortion Moderate refractive index, large dispersion

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23/03/99 23:13


Violet rays Linear chromatic aberration

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23/03/99 22:54

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Lens6.mcd

1

23/03/99 22:56


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1

23/03/99 22:57


Image formation by a Concave Lens with a virtual object With Cartesian sign convention, f = -50 mm, u = +80 mm, v = -133 mm, M = -1.66 v

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Lens8.mcd

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23/03/99 22:58

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The Magnifying Glass

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23/03/99 22:44

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Thick Lens System Principal Planes and Principal Points A1

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Lens10.mcd

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23/03/99 22:42


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1B24 Waves Optics and Acoustics Lecture 32 of 33 (UCL)  

1B24 Waves Optics and Acoustics Lecture 32 of 33 (UCL), astronomy, astrophysics, cosmology, general relativity, quantum mechanics, physics,...

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