Title:
LENS DEVICE, IMAGE CAPTURING DEVICE, METHOD OF CONTROLLING LENS DEVICE, AND PROGRAM
Document Type and Number:
Japanese Patent JP2022103610
Kind Code:
A
Abstract:
To provide a lens device capable of accurately detecting a defocus amount when using a catoptric system.SOLUTION: A lens device (700) can be removably attached to a camera body (100), and comprises a catoptric system (701B), storage means (409) configured to store aperture information based on optical conditions of the lens device (700), and transmission means (408) configured to transmit the aperture information acquired from the storage means (409) to the camera body (100).SELECTED DRAWING: Figure 10
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Inventors:
KIKUCHI KOTARO
MIZUNO NOBUTAKA
MIZUNO NOBUTAKA
Application Number:
JP2020218350A
Publication Date:
July 08, 2022
Filing Date:
December 28, 2020
Export Citation:
Assignee:
CANON KK
International Classes:
G03B17/14; G02B7/28; G02B7/34; G03B13/36; H04N5/225; H04N5/232
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsuya Mizumoto
Tomoya Hirayama
Atsuya Mizumoto
Tomoya Hirayama