Imaging system with panoramic scanning range
Cameras with panoramic scanning range comprising a folded digital camera in which an optical path folding element (OPFE) that folds a first optical path from an object or scene into a second optical path substantially parallel with an optical axis of a lens of the folded camera, the OPFE being rotatable around the lens optical axis, and systems incorporating such cameras.
1. A system comprising:
a) a dual-aperture camera that includes an upright camera with a first field of view FOV 1 and a folded camera with a second field of view FOV 2 , the folded camera having a folded lens with a lens optical axis, a prism that folds a first optical path from an object or scene to a second optical path, and a folded camera image sensor, wherein the lens is attached to the prism, wherein the second optical path is substantially parallel with the lens optical axis and wherein the prism is rotatable only around the lens optical axis for movement of FOV 2 ; and
b) a processing unit configured to track an object or subject of interest in FOV 1 to obtain tracking information and to use the tracking information to direct the prism to rotate only around the lens optical axis for the movement of FOV 2 , wherein the tracking information is used to define an order in which images are captured with the folded camera to form a panoramic image.
2. The system of claim 1 , wherein FOV 1 >FOV 2 .
3. The system of claim 1 , wherein the processing unit is configured to track the object or subject of interest in FOV 1 autonomously.
4. The system of claim 1 , wherein the prism is rotatable in an angle of up to 180 degrees.
5. The system of claim 1 , wherein the prism being rotatable around the lens optical axis provides a plurality of different images.
6. The system of claim 1 , operative to record a video stream with a changing or adaptive field of view.
7. The system of claim 1 , further comprising an actuator for rotating the prism around the lens optical axis.
8. The system of claim 7 , wherein the actuator includes a step motor or a voice coil motor.
9. The system of claim 1 wherein the lens has an image circle.
10. The system of claim 9 , wherein the image sensor is smaller than the image circle.
11. The system of claim 10 , wherein the image sensor is larger than the image circle.