Shaped Lens
Posted on Monday, February 7, 2011 in Photography
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How can a convex lens and convex mirror yield different results?
I don't understand the difference between a convex lens and a convex mirror. Although they are the same shapes, they yield different results. The same goes for concave lens and a concave mirror. Can you explain why this is? Also for converging and diverging lens and mirror. why is a converging lens convex while a converging mirror is concave. What is the difference.
Look at what they do to the light hitting them.
A convex mirror makes the light fan outwards on reflection. A concave lens makes the light also fan outwards as it passes through the lens.
And a Concave mirror reflects light "inwards" by reflecting it and a convex lens, by being fatter in the middle makes the light bend inwards.
The two inwards benders make the same sort of images and the two outward benders also make images similar to each other.
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