公开(公告)号：US09625632B2

公开(公告)日：2017-04-18

申请号：US15075561

申请日：2016-03-21

Applicant: Sony Corporation

Inventor： Christin Weichelt ,  Markus Kamm

IPC: G02B5/30 ,  G02F1/13 ,  G03B11/00 ,  H04N5/225 ,  G02B3/00 ,  G02B27/09

CPC classification number: G02B5/3083 ,  G02B3/0087 ,  G02B27/0012 ,  G02B27/0927 ,  G02B27/0955 ,  G02B27/0988 ,  G02F1/1313 ,  G02F1/13306 ,  G02F1/133711 ,  G02F1/133788 ,  G02F1/13439 ,  G02F1/1393 ,  G03B11/00 ,  H04N5/225

Abstract: An optical system (110) includes a lens unit (112) with a plurality of lenses. An out-of-focus point spread function of the lens unit (112) includes an annular intensity distribution with at least one ring-shaped side peak at a radial distance to a center point. A birefringent device (115) in an optical path of the optical system (110) is adapted to selectively attenuate the ring-shaped side peak in the out-of-focus point spread function of the lens unit (112).

公开(公告)号：US09939572B2

公开(公告)日：2018-04-10

申请号：US15457116

申请日：2017-03-13

Applicant: Sony Corporation

Inventor： Christin Weichelt ,  Markus Kamm

IPC: G02B5/30 ,  G02F1/13 ,  G03B11/00 ,  H04N5/225 ,  G02B3/00 ,  G02B27/00 ,  G02B27/09 ,  G02F1/139 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/133

CPC classification number: G02B5/3083 ,  G02B3/0087 ,  G02B27/0012 ,  G02B27/0927 ,  G02B27/0955 ,  G02B27/0988 ,  G02F1/1313 ,  G02F1/13306 ,  G02F1/133711 ,  G02F1/133788 ,  G02F1/13439 ,  G02F1/1393 ,  G03B11/00 ,  H04N5/225

Abstract: An optical system (110) includes a lens unit (112) with a plurality of lenses. An out-of-focus point spread function of the lens unit (112) includes an annular intensity distribution with at least one ring-shaped side peak at a radial distance to a center point. A birefringent device (115) in an optical path of the optical system (110) is adapted to selectively attenuate the ring-shaped side peak in the out-of-focus point spread function of the lens unit (112).