Lens, camera module and manufacturing method thereof

A camera module, comprising:

• a lens, wherein the lens includes at least one edge-cut lens sheet, wherein the edge-cut lens sheet has at least one chord edge and at least one circular edge, and the chord edge and the circular side are adjacent, wherein the curvature of the chord edge and the curvature of the circular edge are different;
• and
• a photosensitive assembly, wherein the lens disposed on the photosensitive assembly and is located on a photosensitive path of the photosensitive assembly parallel to a direction of an optical axis, and the photosensitive assembly includes a photosensitive chip, a circuit board and a molded base, wherein the photosensitive chip is electrically connected to the circuit board, and the molded base is disposed on the circuit board;
• wherein the circuit board has an elongated shape, and the chord edge of the edge-cut lens sheet extends along a direction parallel to a short axis of the circuit board and perpendicular to a long axis of the circuit board, and the chord edge of the edge-cut lens sheet is located in an extension direction of the long axis of the circuit board.