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Arabian
physicist and mathematician Ibn Al-Haitam
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(965-1039
A.D.), also known as Alhazen,
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experimented
with images seen through the
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pinhole.
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He arranged
three candles in a row and put a screen with a small
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hole between
the candles and the wall. He noted that images were
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formed only by
means of small holes and that the candle to the
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right made an
image to the left on the wall.
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From his
observations he deduced the linearity of light.
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He also
described how to view a solar eclipse using a camera
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obscura and
was the first scientist to make this observation.
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