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

Claim 18:
19. 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.