Lens system with optical actuator

A camera, comprising:

• a photosensor configured to capture light projected onto a surface of the photosensor;
• and
• a lens system configured to refract light from an object field located in front of the camera to form an image of a scene at an image plane at or near the surface of the photosensor, wherein the lens system comprises:
• a master lens comprising a plurality of refractive lens elements arranged along an optical axis of the camera, wherein the master lens is fixed within a body of the camera;
• and
• an optical actuator located on the optical axis of the camera on the object side of the master lens and configured to provide one or more optical functionalities for a camera without moving the master lens, wherein the optical functionalities include one or more of autofocus or optical image stabilization, wherein the optical actuator includes an aperture stop for the camera.

A device, comprising:

• one or more processors;
• one or more cameras;
• and
• a memory comprising program instructions executable by at least one of the one or more processors to control operations of the one or more cameras;
• wherein at least one of the one or more cameras is a camera comprising:
• a photosensor configured to capture light projected onto a surface of the photosensor;
• and
• a lens system configured to refract light from an object field located in front of the camera to form an image of a scene at an image plane at or near the surface of the photosensor, wherein the lens system comprises:
• a master lens comprising a plurality of refractive lens elements arranged along an optical axis of the camera, wherein the master lens is fixed within a body of the camera;
• and
• an optical actuator located on the optical axis of the camera on the object side of the master lens and configured to provide one or more optical functionalities for a camera without moving the master lens, wherein the optical functionalities include one or more of autofocus or optical image stabilization, wherein the optical actuator includes an aperture stop for the camera.