Title:
交換レンズおよび移動部材の停止方法
Document Type and Number:
Japanese Patent JP6989017
Kind Code:
B2
Abstract:
This interchangeable lens, which can be attached to and detached from a camera body, is provided with: a movable member which moves inside of the interchangeable lens; a receiving unit which, from the camera body, receives an instruction related to stopping movement of the movable member and a body-internal clock value based on a body-internal clock unit which is provided in the camera body and which counts a prescribed period; a lens-internal clock unit which counts a prescribed period of the same length as the aforementioned prescribed period and can output the lens-internal clock value, and which adjusts the lens-internal clock value on the basis of the body-internal clock value received by the receiving unit; and a control unit which controls stopping movement of the movable member on the basis of the adjusted lens-internal clock value and the aforementioned instruction.
Inventors:
Ryohiko Kawai
Application Number:
JP2020531257A
Publication Date:
January 05, 2022
Filing Date:
July 09, 2019
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G03B17/14; G02B7/04; G03B17/02
Domestic Patent References:
| JP2011248138A | ||||
| JP2012154967A | ||||
| JP201587418A |
Attorney, Agent or Firm:
Nishizawa Kazumi
Kazunori Onami
Junichi Kobayashi
Kazunori Onami
Junichi Kobayashi