The Secret of Pupil

The pupil is a black circular area in the center of the eye that adapts to different lighting conditions by adjusting the amount of light entering the eye. The size of the pupil is controlled by the muscles in the iris. Under strong light, the pupils contract to reduce the amount of light entering and prevent overexposure; In low light conditions, the pupils dilate to increase the amount of light entering and improve visual sensitivity. In addition, the size of the pupils is also related to emotions and physiological states, such as the dilation of the pupils when under tension.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Pupil is a small circular hole in the center of the iris in the eyes of animals or humans, which serves as a passage for light to enter the eye. The size of the pupils varies with age, race, refractive status, light intensity, target distance, and emotional changes. Among them, when the brightness of the light is strong, the pupils shrink, and when the brightness of the light is weak, the pupils dilate.