All about lenses

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compiled by Mr GJuly 2008

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Describe the shape of typical convex lenses

How are convex lenses used?

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How are convex lenses used?

Typical convex lens diagrams

COPY THIS

Find the focal length of these lenses?, MOVE THE RULER

Copy these 3 eyes down the LHS edge of your page

Find a ruler

and then complete this picture ?????

Typical convex lens diagrams

How do they work?

imagine that you can chunk the convex lens into 3 sections

like this...

How do they work?

rotate the prism just a bit....

How do they work?

How do they work?