Folded zoom camera module with adaptive aperture
Systems comprising a folded camera that includes a lens module with a native aperture, the lens module having a height H M , an adaptive aperture located between the native aperture and an optical path folding element, and an adaptive aperture forming mechanism for forming the adaptive aperture, wherein the adaptive aperture forming mechanism has a height H AA not larger than H M , and methods of using same. In various embodiments, the adaptive aperture forming mechanism includes an actuator and at least one pair of blades operative to be moved by the actuator to a plurality of positions to form the adaptive aperture.
1. A method, comprising:
providing a folded camera that includes a lens module with a height H M and comprising a native aperture, an adaptive aperture (AA) located between the native aperture and an optical path folding element, and an AA forming mechanism, wherein the AA forming mechanism includes at least two pairs of blades and has a height H AA not larger than H M ;
sensing a scene to be captured with the folded camera;
evaluating the sensed scene to determine ideal AA settings;
adjusting the adaptive aperture according to the ideal AA settings; and
capturing an image of the scene with the adjusted adaptive aperture.
2. The method of claim 1 , wherein the AA forming mechanism includes an actuator.
3. The method of claim 2 , further comprising using the actuator to move the at least two pairs of blades linearly to form the adaptive aperture at a given position.
4. The method of claim 3 , wherein the at least two pairs of blades includes a plurality of pairs of blades, and wherein each pair of the plurality of pairs of blades is operative to form the adaptive aperture at a different given position.
5. The method of claim 1 , wherein the lens module includes a folded Tele lens with a cut lens design.
6. The method of claim 1 , wherein the folded camera is a scanning folded Tele camera.
7. The method of claim 1 , further comprising including the folded camera in a mobile device that also includes a processor, and configuring the processor to control the adaptive aperture such that each image captured in a focus stack with the folded camera has a depth of field similar to a depth of field of all other images captured in the focus stack.
8. The method of claim 1 , further comprising including the folded camera in a mobile device that also includes a processor, and configuring the processor to control the AA forming mechanism based on a scene depth.
9. The method of claim 1 , further comprising including the folded camera in a mobile device that also includes a processor and a sensor for detecting a depth of the scene.
10. The method of claim 1 , further comprising including the folded camera in a mobile device.
11. The method of claim 10 , wherein the mobile device is a smartphone.
12. The method of claim 10 , wherein the mobile device is a tablet.