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动物的视觉

    鱼的眼睛一般在头的两边,视线范围可达360°,因此观察范围广.
    蜜蜂的眼睛约由5000个六边形小眼组成,称为复眼。每一个小眼都有一套集光系统和感光系统。这样许多小眼产生许多“点像”拼成物体的影像。
    鹰的眼睛具有独特的视觉系统,可将看到的物体放大数倍,就像望远镜一样。鹰眼具有两套视网膜中央凹,因而鹰眼的视野非常宽广。

Animal Sense Of Sight

    Eyes of fish normally position at two sides of the head in a sight range of up to 360o, as a result, fish has a wide field of observation.
    The bee’s eye consists of about 5,000 hexagonal small eyes, known as the compound eye. Each eye has a light gathering system and a sensitization system. The image of an object is formed by many “point images” produced by a large number of small eyes.
With a unique visual system, the eagle’s eye can enlarge an object several times, just like a telescope. As the eagle’s eye has two sets of retina central holes, the eagle has a wide field of vision.
    from the two signals to the optic nerve will overlap together (although the former signal has disappeared then). On two faces of a drawing board there is a bird picture and an empty birdcage picture respectively, when rotating and turning over the drawing board to bring the two pictures to enter alternately into your sight field at intervals of less than 0.1 second, a sight effect of the bird having flown into the birdcage occurs.

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