Title:
レンズ鏡筒、カメラボディおよびカメラシステム
Document Type and Number:
Japanese Patent JP5845666
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lens barrel capable of executing an appropriate focus adjustment, and further to provide a camera body and a camera system.SOLUTION: A lens barrel 200 comprises: a lens mount 201 capable of mounting a camera body 100 thereto; a diaphragm 211 for adjusting an amount of light transmitted through an imaging optical system 210; a diaphragm driving section 212 that drives the diaphragm 211 and changes a diaphragm diameter of the diaphragm 211; a lens side transmitting and receiving section 217 capable of transmitting and receiving signals to/from the camera body 100; a diaphragm diameter calculating section 231 for calculating a third diaphragm diameter that is any diaphragm diameter included in a range from a first diaphragm diameter to a second diaphragm diameter when the diaphragm diameter of the diaphragm 211 is changed from the first diaphragm diameter to the second diaphragm diameter; and a lens controlling section 203 for controlling the lens side transmitting and receiving section 217 such that the lens side transmitting and receiving section 217 transmits a diaphragm signal corresponding to the third diaphragm diameter calculated by the diaphragm diameter calculating section 231.
Inventors:
Akira Takemura
Hiroaki Takahara
Hiroaki Takahara
Application Number:
JP2011148363A
Publication Date:
January 20, 2016
Filing Date:
July 04, 2011
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G03B17/14; G02B7/02; G02B7/28; G02B7/34; G03B13/36; H04N5/225; H04N5/235
Domestic Patent References:
| JP2011250221A | ||||
| JP2010002900A |
Attorney, Agent or Firm:
Fuyuki Nagai
Takao Watanabe
Takao Watanabe