Title:
光学装置、および撮像装置
Document Type and Number:
Japanese Patent JP7342278
Kind Code:
B2
Abstract:
Provided are an optical device and an imaging device that make it possible to shorten the time it takes to correct axial chromatic aberration. An imaging optical system (20) of a lens barrel (11) comprises a filter unit (31, 70, 90) and a focus lens (26). The filter unit (31, 70, 90) has a plurality of filters (F1, F2, F3, F4) that selectively transmit light of a preset wavelength band. The plurality of filters (F1, F2, F3, F4) are inserted into an optical path in a prescribed order. The focus lens (26) moves along an optical axis (OA) and thereby corrects the axial chromatic aberration of the plurality of types of light that have respectively passed through the plurality of filters (F1, F2, F3, F4). The prescribed order corresponds to the movement direction of the focus lens (26).
Inventors:
Shinichi Shimotsu
Masahiko Sugimoto
Tetsuya Fujikawa
Toshihiro Aoi
Masahiko Sugimoto
Tetsuya Fujikawa
Toshihiro Aoi
Application Number:
JP2022540077A
Publication Date:
September 11, 2023
Filing Date:
June 24, 2021
Export Citation:
Assignee:
Fujifilm Corporation
International Classes:
G02B7/16; G02B7/08; G03B11/00; G03B17/12; H04N23/55
Domestic Patent References:
| JP2006162757A | ||||
| JP11305107A | ||||
| JP2006033716A |
Foreign References:
| WO2020095513A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office