US 12,353,048 B2
Lens device
Tsunemi Niikura, Tokyo (JP); Kazutaka Shibuya, Tokyo (JP); and Katsuya Hirano, Tokyo (JP)
Assigned to CBC CO., LTD., (JP)
Appl. No. 17/778,559
Filed by CBC CO., LTD., Tokyo (JP)
PCT Filed Dec. 2, 2019, PCT No. PCT/JP2019/047088
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2021/111505, PCT Pub. Date Jun. 10, 2021.
Prior Publication US 2022/0413254 A1, Dec. 29, 2022
Int. Cl. G02B 7/08 (2021.01)
CPC G02B 7/08 (2013.01) 4 Claims
OG exemplary drawing
 
1. A lens device for capturing an optical image, the lens device comprising:
a lens main body, the lens main body including:
a lens mechanism for forming the optical image;
a drive motor configured to drive the lens mechanism;
a drive controller configured to perform drive-controlling on the drive motor;
a lens processor configured to provide a drive control signal to the drive controller;
a lens information generator configured to provide characteristic information indicating a lens specification including a lens focal length and a maximum aperture; and
a lens main body information generator configured to provide specification information indicating a lens body specification to be allocated to the lens main body;
a network including a power supply interface for the lens main body and a communication interface for the lens processor; and
an operation terminal, the operation terminal including:
an allocator configured to:
receive the characteristic information and the specification information via the network to recognize the lens main body without getting the characteristic information and the specification information from a camera main body, wherein the camera main body includes an imaging element, and the camera main body is configured to be optically and physically connectable to the lens main body and have no electrical communication and no power supply with the lens main body;
allocate the drive controller corresponding to the lens mechanism of the recognized lens main body; and
a data generator configured to generate the drive control signal; and
a terminal processor configured to perform communication among the allocator, the data generator, and the lens processor to provide the drive control signal to the lens processor via the network,
wherein the lens main body has a secured power supply within a range of an allowable voltage and an allowable current of the power supply interface, and
the operation terminal is configured to cause the drive controller of the lens main body to perform the drive-controlling on the drive motor via the network.