Image sensor, output method thereof, phase focusing method, image device, and terminal

The invention discloses an image sensor comprising a light-sensing unit array, a light-filtering unit array, and a first micro lens array. The light-filtering unit array is arranged on the light-sensing unit array. The first micro lens array is arranged on the light-filtering unit array. Each first micro lens covers a light-filtering unit and a light-sensing unit. Each light-sensing unit comprises multiple light-sensing pixels. The first micro lens array comprises elliptic first lenses. The image sensor provides a hardware basis for image quality improvement and phase focusing condition satisfaction. The invention also discloses a pixel information output method of the image sensor, a phase focusing method, an image device, and a terminal.