Title:
OBSERVATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/011869
Kind Code:
A1
Abstract:
This observation device (100) is provided with an illumination optical system (3) for radiating illumination light to a sample (X); an objective optical system (4) for capturing an image of the illumination light transmitted through the sample (X), the objective optical system (4) having a phase modulation region (15) and a light shielding region (16); and an autofocus mechanism (5); the illumination optical system (4) emitting illumination light from either a first emission region (91) disposed in a position at which the illumination light is projected to the phase modulation region (15) or a second emission region (92) disposed in a position at which a portion of the illumination light is projected to the light shielding region (16), and the autofocus mechanism (5) causing the objective optical system (4) to capture an image while the illumination light is emitted from the second emission region (92) and detecting the focus position of the objective optical system (4) on the basis of the contrast of an acquired image.
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Inventors:
HIRATA TADASHI (JP)
HIGURASHI MASAKI (JP)
HIGURASHI MASAKI (JP)
Application Number:
PCT/JP2016/070472
Publication Date:
January 18, 2018
Filing Date:
July 11, 2016
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
G02B21/00; G02B7/28; G02B7/36
Foreign References:
| JP2015082100A | 2015-04-27 | |||
| JP2006174764A | 2006-07-06 | |||
| JPH10268197A | 1998-10-09 |
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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