Dynamic aperture module, imaging lens assembly module and electronic device

Abstract

A dynamic aperture module is proposed. The dynamic aperture module includes a blade set, a fixing portion, a rotating portion, a driving unit and a position detecting unit. The blade set includes a plurality of blades, and the blades form a light through hole. The rotating portion rotates related to the fixing portion, and drives each of the blades rotates related to the fixing portion, so that the dimension of the light through hole is variable. The driving unit includes a first magnet element and a first driving coil. The first driving coil is configured to generate a driving force with the first magnet element. The position detecting unit includes a first detecting magnet, a second detecting magnet, a first hall element and a second hall element. The first hall element is configured to detect a magnetic field of the first detecting magnet. The second hall element is configured to detect a magnetic field of the second detecting magnet. When the first hall element or the second hall element detects the magnetic field, the position detecting unit outputs a position signal. Thus, the dynamic aperture module of the present disclosure can increase the detecting accuracy.

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