Title:
LIGHT QUANTITY ADJUSTING DEVICE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2023131549
Kind Code:
A
Abstract:
To provide a light quantity adjusting device and imaging apparatus advantageous in downsizing.SOLUTION: The light quantity adjusting device includes: a base member having an opening that allows light to pass through; an aperture blade group that narrows the opening; a driving ring that drives the aperture blade group engaged through an engagement portion; and a driving portion that transmits driving force to the driving ring through a driven portion provided in the driving ring. The driving ring has a cylindrical portion between the driven portion and the engagement portion.SELECTED DRAWING: Figure 3A
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Inventors:
NAKAWAKI SHINYA
Application Number:
JP2022036377A
Publication Date:
September 22, 2023
Filing Date:
March 09, 2022
Export Citation:
Assignee:
CANON DENSHI KK
International Classes:
G03B9/06
Attorney, Agent or Firm:
Patent Attorney Corporation Otsuka International Patent Office
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