What kind of eye is the eye of a fly? How many eyes does a fly have?

The fly's eyes are hemispherical, large and smooth, like two bright searchlights, taking up a large part of the head.

They are similar to the eyes of bees, they are also composed of many hexagonal small eyes, the small eyes have a high temporal resolution, can divide moving objects into a continuous single lens, each small eye has a cornea and a lens, can be imaged separately, how many small eyes can form how many pictures at the same time, and then these pictures are combined in the brain of the fly, is a clear moving object image, even if the moving object is fast, it is difficult to escape the "magic eye" of the fly.

The fly's eye response + minutes are sensitive, and it can see ultraviolet rays that are invisible to the human eye, and it generally takes seconds for the human eye to see the outline of the object clearly, while the fly's eye only needs seconds. So scientists imitate the structure of the fly's eye and make a fly's eye camera with a honeycomb-like lens, which is made of several small lenses glued together, and the shooting has a high definition. In addition, there are many bionics of flies, people make small gas analyzers according to the sensitive antennae of flies, their hind wings will become a balance rod when flying, people apply this principle to the maintenance of stability of rockets and airplanes, as well as optical velocimeters, "ultraviolet eyes" and so on, which are the enlightenment that flies bring to human beings.

Flies have 2 pairs of wings, and each pair of wings has 2 eyes, so flies have a total of 4 eyes.

So, flies have 4 eyes.

Flies have more than 400 eyes.

Fly. The eye is a compound eye, which is an eye made up of an indefinite number of small eyes. Mainly in arthropods such as insects and crustaceans.

Organs of the same structure are also found in bivalves, and the small eye surface in the compound eye is generally hexagonal.

The compound eyes of flies are composed of about 4,000 small eyes, and the compound eyes of butterflies and moths have about 28,000 small eyes. The size of the small eye surface is not only different in different species of insects, but also different parts of the same compound eye, such as male gadfly.

The small ocular surface on the back of the compound eye is larger; Some hairy mosquitoes have different sizes of small eye surfaces in the anterior and posterior parts of the mosquitoes, which can be divided into two areas. These changes are related to their habits of life, etc.

The compound eye, as opposed to the monocular, is the main visual organ of the insect and usually occupies a prominent position on the insect's head. Most insects have round, oval, or kidney-shaped compound eyes. It consists of a large number of small eyes. Each eyelet has a cornea, crystal vertebrae, pigment cells, and retina.

Structures such as cells and rods are independent photoreceptors.

Flies have compound eyes for the following reasons:

Compound eyes allow flies to perceive subtle changes in their surroundings and help them identify the location of state dust and hazards. The structure of the compound eye allows the overlapping parts of adjacent units to be raised to provide a more comprehensive field of vision.