US 12,105,401 B2
Imaging device, imaging system, focus control method, and non-transitory computer-readable medium with cam curve
Tomoomi Ito, Kanagawa (JP); Yoshinori Yamatsuta, Kanagawa (JP); and Shinichi Fujii, Kanagawa (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on Nov. 4, 2022, as Appl. No. 17/980,822.
Application 17/980,822 is a continuation of application No. 16/625,970, granted, now 11,493,829, previously published as PCT/JP2018/016829, filed on Apr. 25, 2018.
Claims priority of application No. 2017-124826 (JP), filed on Jun. 27, 2017.
Prior Publication US 2023/0185163 A1, Jun. 15, 2023
Int. Cl. G03B 13/36 (2021.01); G02B 7/08 (2021.01); G02B 7/09 (2021.01); G02B 7/10 (2021.01); G03B 17/14 (2021.01)
CPC G03B 13/36 (2013.01) [G02B 7/08 (2013.01); G02B 7/09 (2013.01); G02B 7/10 (2013.01); G03B 17/14 (2013.01)] 17 Claims
OG exemplary drawing
 
8. An imaging system comprising:
an interchangeable lens; and
an imaging device, wherein
the interchangeable lens including a memory storing a cam curve representing a relationship between a position of a zoom lens and a position of a focus lens according to a subject distance, and
the imaging device including a second memory and a focus control circuitry, the focus control circuitry is configured to
request the cam curve from the interchangeable lens,
receive the cam curve from the interchangeable lens in response to requesting the cam curve,
control the second memory to store the cam curve,
receive distance information,
calculate control information for controlling the focus lens based on the distance information and the cam curve that is stored in the second memory, and
transmit the control information to the interchangeable lens.