Optical lens, camera module, and electronic device

A camera module, comprising:

• a photosensitive element;
• and
• an optical lens,
• wherein the photosensitive element is disposed on an image side of the optical lens, and the optical lens comprises:
• a front lens group comprised of a first front lens group and a second front lens group arranged in a first direction;
• a first turning element capable of moving between a first position and a second position in the first direction;
• a first rear lens group;
• and
• a second rear lens group,
• wherein:
• the first direction is parallel to an optical axis of the first rear lens group;
• the front lens group, the first turning element, the first rear lens group, and the second rear lens group are arranged in a direction from an object side to an image side;
• when the first turning element is at the first position, the first turning element is located on an image side of the first front lens group, the first turning element is configured to reflect an emergent light beam of the first front lens group to the first rear lens group, and the optical lens has a first effective focal length F1;
• and
• when the first turning element is at the second position, the first turning element is located on an image side of the second front lens group, the first turning element is configured to reflect an emergent light beam of the second front lens group to the first rear lens group, the optical lens has a second effective focal length F2, the second effective focal length F2 is greater than the first effective focal length F1, and a moving stroke L of the first turning element between the first position and the second position satisfies:
• L≤23 mm.

An electronic device, comprising:

• a housing and a camera module, wherein the camera module is mounted on the housing and comprises a photosensitive element and an optical lens, wherein the photosensitive element is disposed on an image side of the optical lens, the optical lens comprises a front lens group, a first turning element, a first rear lens group, and a second rear lens group arranged in a direction from an object side to an image side, wherein
• the front lens group comprises a first front lens group and a second front lens group arranged in a first direction, the first direction is parallel to an optical axis of the first rear lens group, and the first turning element is capable of moving between a first position and a second position in the first direction;
• when the first turning element is at the first position, the first turning element is located on an image side of the first front lens group, the first turning element is configured to reflect an emergent light beam of the first front lens group to the first rear lens group, and the optical lens has a first effective focal length F1;
• and
• when the first turning element is at the second position, the first turning element is located on an image side of the second front lens group, the first turning element is configured to reflect an emergent light beam of the second front lens group to the first rear lens group, the optical lens has a second effective focal length F2, the second effective focal length F2 is greater than the first effective focal length F1, and a moving stroke L of the first turning element between the first position and the second position satisfies:
• L≤23 mm.