Lamellar bone observation microscope

    公开(公告)号:US10082656B2

    公开(公告)日:2018-09-25

    申请号:US15471538

    申请日:2017-03-28

    发明人: Takaaki Tanaka

    摘要: A lamellar bone observation microscope includes: a light source; a condenser lens for focusing light emitted by the light source onto a sample; an objective lens on an opposite side of the sample from the condenser lens; a first polarizing plate between the light source and the condenser lens to pass only a polarization component of the light emitted by the light source; a second polarizing plate configured to pass only a polarization component of the light passed through the sample in accordance with a relative positional relationship with the first polarizing plate; a first wave plate between the first polarizing plate and the condenser lens to introduce a phase difference of λ/4 in a γ direction of the light passed through the first polarizing plate; and a second wave plate for introducing a phase difference of λ/4 in a γ direction of the light passed through the objective lens.

    Structured illumination optical system and structured illumination microscope device

    公开(公告)号:US10067328B2

    公开(公告)日:2018-09-04

    申请号:US14132777

    申请日:2013-12-18

    申请人: NIKON CORPORATION

    发明人: Yumiko Ouchi

    摘要: An illumination optical system includes: a beam splitter located near a conjugate position of a specimen and configured to split beams from a light source into a plurality of groups of beams having different splitting directions around an optical axis; a beam selector configured to select and transmit one group of beams from the plurality of groups of beams and that is rotatable with respect to the optical axis; and a ½ wavelength plate located near the beam selector and rotatable about the optical axis. The rotation angles of the ½ wavelength plate and of the beam selector about the optical axis are respectively set so that the polarization direction of the beam which has passed through the ½ wavelength plate is perpendicular to the splitting direction of the one group of beams that has been selected by the beam selector and split by the beam splitter.

    METHOD AND SYSTEM FOR FULL-FIELD INTERFERENCE MICROSCOPY IMAGING

    公开(公告)号:US20180120550A1

    公开(公告)日:2018-05-03

    申请号:US15565449

    申请日:2016-04-08

    申请人: LLTECH MANAGEMENT

    摘要: The invention relates to a system (20) for full-field interference microscopy imaging of a three-dimensional diffusing sample (206). Said system includes: an interference device (200) including a reference arm on which a reflective surface (205) is arranged, the interference device being suitable for producing, at each point of an imaging field when the sample is placed on a target arm of the interference device, interference between a reference wave, obtained by reflection of incident light waves onto a basic surface of the reflective surface (205) corresponding to said point of the imaging field, and a target wave obtained by backscattering of incident light waves by means of a voxel of a slice of the sample at a given depth, said voxel corresponding to said point of the imaging field; an acquisition device (208) suitable for acquiring, at a fixed path length difference between the target arm and the reference arm, a temporal series of N two-dimensional interferometric signals resulting from the interference produced at each point of the imaging field; and a processing unit (220) configured to calculate an image (IB, IC) representing temporal variations in intensity between said N two-dimensional interferometric signals.

    PHASE-CONTRAST MICROSCOPE AND IMAGING METHOD

    公开(公告)号:US20180113295A1

    公开(公告)日:2018-04-26

    申请号:US15850969

    申请日:2017-12-21

    发明人: Kenta MATSUBARA

    摘要: A culture vessel that houses a culture liquid and a specimen is irradiated with pattern light having a pattern that is previously set for the culture vessel. Transmitted light transmitted through the culture liquid in the culture vessel because of the irradiation with the pattern light is detected. Optical characteristics of an adjusting optical system that adjusts refraction of light caused by the shape of the liquid surface of the culture liquid in the culture vessel are adjusted, on the basis of a detection signal based on the detected transmitted light. After the adjustment, the culture vessel is irradiated with illumination light for phase-contrast measurement, and the specimen irradiated with the illumination light is imaged.

    Non-interferometric phase measurement

    公开(公告)号:US09947118B2

    公开(公告)日:2018-04-17

    申请号:US14723341

    申请日:2015-05-27

    IPC分类号: G01J9/00 G06T11/20 G02B21/14

    CPC分类号: G06T11/20 G01J9/00 G02B21/14

    摘要: Techniques described herein are generally related to non-interferometric phase measurements of an optical signal. The various described techniques may be applied to methods, systems, devices or combinations thereof. Some methods for determining phase data of the optical signal may include transmitting the optical signal through a first optical element and obtaining first intensity data at a first focal plane of the first optical element by an optical sensor. Example methods may also include transmitting the optical signal through a second optical element. The second optical element may include a phase transformation mask. Example methods may further include obtaining a second intensity data at a second focal plane of the second optical element by the optical sensor and determining the phase data for the optical signal based on the first intensity data and the second intensity data.