CPC H04N 23/55 (2023.01) [H04N 23/45 (2023.01); H04N 23/51 (2023.01); H04N 23/56 (2023.01); H04N 23/671 (2023.01)] | 18 Claims |
1. An imaging system comprising:
a lens having a focal length and configured to transmit light;
a first partial reflector;
a second partial reflector,
wherein the transmitted light undergoes one or multiple round-trip reflections between the first partial reflector and the second partial reflector; a time-integrating sensor configured to capture a raw image corresponding to focused and unfocused light exiting the second partial reflector; a signal processing unit configured reconstruct an in-focused image from the raw image; an additional lens placed between the first partial reflector and the second partial reflector; the lens, the first partial reflector, the second partial reflector; and the time-integrating sensor are aligned substantially along an optical axis, a distance between the lens and the time-integrating sensor is less than the focal length.
|