Title:
STEREOSCOPIC OPTICAL SYSTEM AND IMAGING DEVICE PROVIDED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2019/008618
Kind Code:
A1
Abstract:
Provided are: a small-sized stereoscopic optical system offering favorable correction of optical aberration and yielding an optimum inward angle even at short object distances; and an imaging device provided therewith. This stereoscopic optical system is provided with a first optical system OBJ 1 and a second optical system OBJ2. The first optical system OBJ1 and the second optical system OBJ2 are each provided with an aperture S and a plurality of lens groups. The plurality of lens groups include at least one lens group that moves during focusing. At least near-point focusing and far-point focusing are performed by moving the moving lens groups. During near-point focusing, a first entrance pupil and a second entrance pupil are both located closer to the image side than the position during far-point focusing. Herein, the first entrance pupil is the entrance pupil of the first optical system, the second entrance pupil is the entrance pupil of the second optical system, the near point is the point of the focusing range that is located closest to the stereoscopic optical system, and the far point is the point of the focusing range that is located the farthest away from the stereoscopic optical system.
Inventors:
UCHIDA YOSHIHIRO (JP)
Application Number:
PCT/JP2017/024301
Publication Date:
January 10, 2019
Filing Date:
July 03, 2017
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B1/00; G02B13/00; G02B13/18; G02B23/26
Domestic Patent References:
| WO2017033234A1 | 2017-03-02 |
Foreign References:
| JP2008170803A | 2008-07-24 | |||
| JP2012113281A | 2012-06-14 |
Attorney, Agent or Firm:
SAITO Keisuke et al. (JP)
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