Abstract: An optical system includes a fixed assembly, a movable part and a driving assembly. The movable part is configured to be connected to an optical module, and the movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The optical system further includes a guiding assembly, and the movable part moves relative to the fixed assembly through the guiding assembly.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving component. The movable portion is configured to connect an optical element. The movable portion is movable relative to the fixed portion. The driving component is configured to drive the movable portion to move relative to the fixed portion.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable part, a fixed part, and a sensing assembly. The movable part is used for connecting an optical element. The fixed part has an opening for allowing light to pass through. The movable part moves relative to the fixed part. The sensing assembly is used for sensing the position of the movable part relative to the fixed part. When the movable part is in a first range, the optical element at least partially overlaps the opening.

Abstract: A driving mechanism is provided, including a fixed part, an optical element, and a driving assembly. The optical element is movably connected to the fixed part. The driving assembly is disposed in the fixed part for moving the movable part relative to the fixed part along the first axis.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable part, a fixed part, and a sensing assembly. The movable part is used for connecting an optical element. The fixed part has an opening for allowing light to pass through. The movable part moves relative to the fixed part. The sensing assembly is used for sensing the position of the movable part relative to the fixed part. When the movable part is within a first range, the optical element at least partially overlaps the opening.

Abstract: An optical fingerprint imaging device, including a substrate, an imaging module, at least one light emitting element, a light shielding element, a case, and a pressing substrate, is provided. The light shielding element is disposed between the imaging module and the light emitting element. The optical fingerprint imaging device satisfies conditional expressions, h?H?h+(R/tan(?/2)) and Ravg<S<5Ravg, where h is a height from a field angle origin of the imaging module to the substrate, H is a height of the light shielding element at a measurement position, R is a distance from a center of the imaging module to the measurement position, ? is an angle of a field angle of the imaging module, Ravg is an average value of distances from the center to measurement positions of the light shielding element, and S is a distance from the center to a center of the light emitting element.