Abstract: A three-dimensional data generation method includes the following processing. A processor acquires two or more images of a component inside a turbine. The processor detects two or more correspondence regions that are the same regions in at least two images. The processor determines whether at least part of a region of each image is a change region or a non-change region. The processor generates three-dimensional data by using a correspondence region determined to be the change region without using a correspondence region determined to be the non-change region.

Abstract: A motorized correction collar system includes: an attachment portion; a control unit that controls transmission of force to a correction collar ring of a first objective lens attached to the attachment portion; and a storage unit that stores calibration information at least for each type of objective lens with a correction collar. The control unit acquires calibration information corresponding to the first objective lens from among the calibration information stored in the storage unit, and calibrates the correction collar of the first objective lens based on the calibration information.

Abstract: An optical signal detection device includes an objective and a gel unit including a gel and an assisting member. The assisting member includes a first surface, a second surface, and an opening. The opening has a diameter smaller than an outer diameter of the gel and larger than an effective diameter of the objective. The first surface faces the gel, and a part of the first surface is fixed to a bottom surface of the gel by an adhesive force. A center of the bottom surface is not in contact with the assisting member. In a state where the gel unit is attached to a frame member of the objective, the second surface faces the frame member of the objective, a part of the first surface is fixed to the gel outside the effective diameter of the objective, and the gel is in close contact with the objective.

Abstract: A microscope system includes: a microscope optical system that includes an ocular lens and forms an optical image of a sample on an object side of the ocular lens; a processor that generates auxiliary image data based on information regarding a target slide selected from among a plurality of ordered slides included in a slide set; and a superimposing device that superimposes, based on the auxiliary image data, an auxiliary image including the target slide on an image plane on which the optical image is formed. The processor selects, in response to an instruction to switch the target slide, a slide determined according to a first order in which the plurality of slides are ordered as a new target slide.

Abstract: An observation apparatus includes: an illumination optical system provided below an installation position of a multi-well plate; a reflector provided above the installation position, the reflector being configured to reflect light emitted from the illumination optical system; and an observation optical system provided below the installation position, the observation optical system being configured to condense the light reflected by the reflector. The reflector is installed such that a marginal ray to enter the observation optical system travels via a peripheral well different from an on-axis well located on an optical axis of the observation optical system before reflection due to the reflector.

Abstract: A movable optical unit configured to be rotatable around an axis by an electromagnet includes a fixed shaft, a bearing through which the fixed shaft is inserted and which is polarized in a direction orthogonal to a long axis of the fixed shaft, a holding frame that is provided to be rotatable around the fixed shaft and holds at least one optical member, and a pair of arm members extending outward from the holding frame in a direction orthogonal to the long axis of the fixed shaft, the pair of arm members being bonded to the bearing in a state of sandwiching the bearing in a direction along the long axis of the fixed shaft.

Abstract: A light transmission optical member for endoscope includes an incident surface provided at a distal end portion of an insertion section, light being made incident on the incident surface as incident light from a proximal end side of the insertion section, and an emission surface for emitting the light as illumination light. The emission surface includes a diffusing section that diffuses the emitted light. The diffusing section includes a plurality of convex-shaped sections extending in a predetermined direction on the emission surface. Each of the convex-shaped sections includes a first slope section having a first angle with respect to the emission surface, and totally reflecting the incident light, and a second slope section having a second angle smaller than the first angle with respect to the emission surface, and transmitting and emitting reflected light totally reflected on the first slope section and the incident light.

Abstract: An image capturing device for observing a sample housed in a container to which identification information is attached, from below the container, includes: an image capturing unit including an image pickup element; a light guide unit that guides light from an identification surface to the image capturing unit, the identification surface being a surface of the container which differs from a bottom surface of the container and to which identification information is attached; and a mobile unit that changes a relative position of the image capturing unit with respect to the container.

Abstract: The objective includes a first lens group having positive power and a second lens group having negative power and including a pair of meniscus lens components having concave surfaces facing each other. The first lens group includes a first lens situated closest to an object side and has positive power with a concave surface facing the object side. The objective includes three or more cemented lenses arranged closer to the object side than the pair of meniscus lens components, and satisfies the following conditional expressions. 2.6??L1/DL1?16??(1) 0.1?|R212|/f?3.5??(2) Here, ?L1 and DL1 are an outer diameter and a thickness of the first lens. R212 is a radius of curvature of a surface closest to the image side in a first meniscus lens component among the pair of meniscus lens components. f is a focal length of the objective.

Abstract: An objective includes a first lens group having positive power, a second lens group including a pair of lens components having concave surfaces facing each other, and a third lens group having positive power, and the pair of lens components is cemented lenses, and the following conditional expression is satisfied. 0.20?d2/L?0.5??(1) where d2 is a distance between a surface situated closest to an image side in a first lens component and a surface situated closest to the object side in a second lens component, the first lens component being a lens component situated on the object side and the second lens component being a lens component situated on the image side of the pair of lens components. L is a distance between a surface situated closest to the object side and a surface situated closest to the image side in the objective.

Abstract: A microscope objective includes: a first group including a plurality of meniscus lenses with a concave surface facing an object side; a second group including a first cemented lens closest to the object side; a third group consisting of a positive single lens; a fourth group including a first cemented meniscus lens with a concave surface facing the object side; a fifth group consisting of a second cemented meniscus lens with a concave surface facing an image side; and a sixth group including a third cemented meniscus lens with a concave surface facing the object side, the first to sixth groups being arranged in order from the object side. The microscope objective satisfies the following conditional expression. 0<|f/f5|<0.15??(1) Where, f is a focal length of the microscope objective. f5 is a focal length of the fifth group.

Abstract: A management system for managing setting information of an observation system includes: one or more non-transitory computer-readable media that include an instruction; and one or more processors that execute the instruction. The instruction is configured to cause the one or more processors to perform an operation. The operation includes detecting a use status of a setting indicated by the setting information, and updating, in accordance with the detected use status, evaluation information indicating an evaluation pertaining to the setting, the evaluation information being managed so as to be associated with the setting information.

Abstract: A microscope system includes: a microscope optical system including an ocular lens, the microscope optical system being configured to form an optical image of a sample on an object side of the ocular lens; a processor configured to generate, based on examination information regarding examination to the sample and magnification information regarding a magnification of the microscope optical system, image data of a comparative image for comparison with the optical image; and a superimposition device configured to superimpose, based on the image data generated by the processor, the comparative image onto an image plane on which the optical image is formed.

Abstract: A microscope system comprises: a light source; an objective lens; a stage; a two-dimensional image sensor that captures an image of a specimen placed on the stage; a focusing device that changes distance between the objective lens and the stage; and a control circuit, wherein the control circuit executes, during a movement period in which the stage moves in a direction orthogonal to an optical axis of the objective lens, focus control for controlling the focusing device based on focus evaluation information detected during the movement period, and exposure control for controlling an exposure period of the two-dimensional image sensor, and executes light emission control that causes the light source to emit light with different light emission intensities during the exposure period and during a focus evaluation period in which the focus evaluation information is detected.

Abstract: A microscope system 1 includes an eyepiece 104, an objective 102 that guides light from a sample to the eyepiece 104, and a tube lens 103 that is disposed on a light path between the eyepiece 104 and the objective 102 and forms an optical image of the sample on the basis of light therefrom. The microscope system 1 further includes a projection apparatus 133 that projects first and second projection images onto an image plane on which the optical image is formed, in a manner such that the first and second projection images are capable of being distinguished from each other. The first projection image is based on an analysis result provided by a computer for the digital image data of the sample. The second projection image is based on an input operation performed by a user and includes at least input information provided by the user.

Abstract: An imaging condition set in a first region of a three-dimensional model of a subject and an imaging condition set in a second region of the three-dimensional model are different from each other. A processor of an observation device determines whether or not the imaging condition that has been set in the first region or the second region including a position on the three-dimensional model is satisfied. The position is identified on the basis of a position of an imaging device and a posture of the imaging device. The processor displays observation information on a display on the basis of a result of determination. The observation information represents whether or not the first region or the second region including the position on the three-dimensional model has been observed.

Abstract: Provided is an observation device including: a stereo image-acquisition optical system that acquires images of cells floating in a culture fluid inside a culture vessel; and an analyzer that calculates a cell density of the cells on the basis of the images acquired by the stereo image-acquisition optical system, wherein the analyzer identifies a three-dimensional position of each of the cells included in the images and calculates the cell density on the basis of the number of cells present within a predetermined three-dimensional region.

Abstract: A system for evaluating stem cell differentiation includes a storage configured to store a machine learned model that has learned success or failure of cell differentiation for a combination of a stem cell and a differentiation induction method, an acquisition unit configured to acquire a target cell image that is an image of a target cell that is a stem cell to be induced to differentiate and differentiation induction information that is information related to a differentiation induction method applied to the target cell, and a processor configured to output differentiation success or failure information indicating an inference result related to success or failure of differentiation of the target cell into a desired cell type on the basis of the target cell image, the differentiation induction information, and the machine learned model. The differentiation induction information includes information indicating the type of a stimulus given to the target cell.

Abstract: A microscope system is provided with a microscope that acquires images at least at a first magnification and a second magnification higher than the first magnification, and a processor. The processor is configured to specify a type of a container in which a specimen is placed, and when starting observation of the specimen placed in the container at the second magnification, the processor is configured to specify a map region corresponding to a map image constructed by stitching together a plurality of second images acquired by the microscope at a higher magnification than the first magnification by performing object detection according to the type of the container on a first image that includes the container acquired by the microscope at the first magnification, and cause a display unit to display the first image and a range of the map region on the first image.

Abstract: A control method for displaying inspection images causes a processor to display an image of a model of an inspection object including a plurality of inspection sites, in a first display region and display first inspection information relevant to at least one inspection site, in a second display region, where the at least one inspection site is selected from the plurality of inspection sites in the image of the model displayed in the first display region. The control method further causes the processor to display inspection information prior to the first inspection information, as second inspection information relevant to the model, in a third display region, concurrently with one or more of the first display region and the second display region.