Iris Mechanism

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The Iris mechanism is an essential component in cameras and the human eye. It controls the amount of light that enters by adjusting the size of the opening, known as the pupil. In cameras, this feature allows for optimal exposure and sharpness in various lighting conditions, while in humans, it plays a crucial role in vision and appearance. This complex structure comprises smooth muscles, connective tissue, and multiple layers working together to create a circular aperture that responds to light stimuli.