Camera module and electronic device

A camera module, comprising:

• a unitary element integrally formed by a lens carrier and a lens barrel and forming a containing space, wherein the unitary element has an object-side opening, and the object-side opening is a smallest opening of the unitary element;
• an optical image lens assembly disposed in the containing space and having an optical axis;
• a fixed member for accommodating the unitary element, wherein the fixed member comprises a base and a cover, and the cover has a through hole and is connected with the base;
• and
• a driving member for driving the unitary element to move relative to the fixed member, wherein the driving member comprises at least one magnet and at least one coil, and one of the at least one magnet and the at least one coil is disposed on the fixed member and is corresponding to another one;
• wherein the unitary element comprises a reverse inclined structure, the reverse inclined structure is located on an image side of the object-side opening and surrounds the optical axis, and the reverse inclined structure comprises:
• at least two annular concave structures arranged in order from the object-side opening to an image side, wherein a sectional surface of each of the annular concave structures passing through the optical axis comprises a valley point and two concave ends, the two concave ends are respectively disposed on an object side and an image side of the valley point, and the valley point is located on a position farthest from the optical axis on each of the annular concave structures;
• wherein a diameter of the object-side opening is ψ, a diameter of the valley point of one of the at least two annular concave structures disposed closest to an object side is ψDo, a diameter of the valley point of one of the at least two annular concave structures disposed closest to the image side is ψDi, and the following condition is satisfied:
• 0.0%<(ψDi−ψDo)/ψ×100%<30%.

A camera module, comprising:

• a unitary element integrally formed by a lens carrier and a lens barrel and forming a containing space, wherein the unitary element has an object-side opening, and the object-side opening is a smallest opening of the unitary element;
• an optical image lens assembly disposed in the containing space and having an optical axis;
• a fixed member for accommodating the unitary element, wherein the fixed member comprises a base and a cover, and the cover has a through hole and is connected with the base;
• and
• a driving member for driving the unitary element to move relative to the fixed member, wherein the driving member comprises at least one magnet and at least one coil, and one of the at least one magnet and the at least one coil is disposed on the fixed member and is corresponding to another one;
• wherein the unitary element comprises a reverse inclined structure, the reverse inclined structure is located on an image side of the object-side opening and surrounds the optical axis, and the reverse inclined structure comprises:
• at least two annular concave structures arranged in order from the object-side opening to an image side, wherein a sectional surface of each of the annular concave structures passing through the optical axis comprises a valley point and two concave ends, the two concave ends are disposed on an object side and an image side of the valley point, respectively, and the valley point is located on a position farthest from the optical axis on each of the annular concave structures;
• wherein a distance between each of the valley points and the concave end disposed on the image side thereof along the optical axis is a1, a distance between the two concave ends of each of the annular concave structures along the optical axis is a2, and following condition is satisfied:
• 0.05<a1/a2<0.90.