Patent ID: 11899186
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. 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 sensor module configured to capture light projected onto a surface of the sensor module; and
a folded 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 sensor module, wherein the lens system comprises:
a first group comprising a first refractive lens element with positive refractive power on a first portion of an optical axis having a convex object-side surface in a paraxial region and a first light folding element that redirects light from the first refractive lens element to a second portion of the optical axis;
a second group comprising two or more refractive lens elements on the second portion of the optical axis; and
a third group comprising a second light folding element that redirects light from the second portion of the optical axis to the sensor module on a third portion of the optical axis;
wherein the folded lens system provides a 35 mm equivalent focal length in the range of 70-200 mm and has an F-number of 2.8 or less.