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Lenses - Coggle Diagram
Lenses
Convex Lenses
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Finding an Image
In parallel, out through focal point
In through the optic centre, ray continues
In through the focal point, out parallel
Images
Behind F, I is real, inverted and magnified
Behind C, I is real, inverted and diminshed
In front of F, I is virtual, upright and magnified
On C, I is real, inverted and same size
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Concave Lenses
Rules
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Further away the object, the smaller the image
Finding an Image
In through the optic centre, ray continues
In parallel, out as if coming from focus
Images
In front of F, I is virtual, upright and diminshed
Behind C, I is virtual, upright and diminished
Behind F, I is virtual, upright and diminished
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Formulae
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Image/Object/Focus
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Concave
Opposite signs for u, v and f
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Convex
Same signs for u, v and f
If O is in F, u and f are same sign
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virtual image = u, v are opposite sign
real image = u, v are same sign
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