I went to an exhibit in the Tulsa Zoo that had a little area that supposedly shows how a common house fly sees the world, in a hexagonal pattern. How do we know that is how they see?
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That’s not really how it looks. We don’t know exactly what it looks like, but we can get pretty close by examining the structure. For instance you need a large aperture to get a lot of details, because you’re getting more light. But in compound eyes they don’t have very big apertures. So no part of the compound eye will get enough information from light to form a real picture.
But since there are so many, it is getting information from a huge number of points at a time. This would let you detect movement very well, but not a lot else.
We can simulate this by creating artificial lenses in the same size and shape of the eye. Its not perfect, but its close enough.
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