Provided is a microscope apparatus including: a microscope section configured to perform magnified observation of a subject's eye while obtaining a red reflex caused by irradiating a fundus of the subject's eye with illuminating light; a holding section configured to hold the microscope section; and a tilting section configured to tilt an illumination optical axis which is an optical axis of an illumination optical system, and an observation optical axis which is an optical axis of an observation optical system in the microscope section, around a tilt reference point in an interior of the subject's eye as a base point, while maintaining a substantially coaxial state between the illumination optical axis and the observation optical axis.

A stereo microscope includes a stand, two optical image acquisition units configured to connect to the stand to capture a stereoscopic image, which define an imaging plane using two optical axes of the image acquisition units, a pair of video glasses including two optical image reproduction units, each having an optical axis and a display for reproducing an image, which together define an image plane, wherein the optical image reproduction units are arranged to produce a stereoscopic image impression, and two optical axes of the optical image reproduction units define an image reproduction plane, a detection device configured to determine spatial orientation of the video glasses, the image reproduction plane, the image plane and the imaging plane, and a control unit configured to pivot the stand so that the intersection lines of the image plane and the imaging plane on the image reproduction plane are made parallel. Methods are also disclosed.

A medical observation apparatus including: an arm including a plurality of links connected to each other via a joint, the arm having at least three or more degrees of freedom implemented by a rotation operation about a rotation axis; an imaging device supported by the arm; and an arm controller that controls an operation of the arm. When a posture of the arm is in a predetermined state, and when a predetermined input for moving the arm about a rotation axis orthogonal to a second axis that is a second rotation axis from a side of the arm on which the imaging device is supported and a third axis that is a third rotation axis from the side of the arm on which the imaging device is supported is detected, the arm controller makes one of the links corresponding to the third axis rotate about the third axis.

A medical observation apparatus including: an arm including a plurality of links connected to each other via a joint, the arm having at least three or more degrees of freedom implemented by a rotation operation about a rotation axis; an imaging device supported by the arm; and an arm controller that controls an operation of the arm. When a posture of the arm is in a predetermined state, and when a predetermined input for moving the arm about a rotation axis orthogonal to a second axis that is a second rotation axis from a side of the arm on which the imaging device is supported and a third axis that is a third rotation axis from the side of the arm on which the imaging device is supported is detected, the arm controller makes one of the links corresponding to the third axis rotate about the third axis.

Methods and systems for controlling a surgical microscope. Moveable optics of the surgical microscope are controlled using two sets of control parameters, to reduce jitter and image instability. Shifts in the image due to changes in temperature or due to the use of optical filter can also be compensated. Misalignment between the mechanical axis and the optical axis of the surgical microscope can also be corrected.

Methods and systems for controlling a surgical microscope. Moveable optics of the surgical microscope are controlled using two sets of control parameters, to reduce jitter and image instability. Shifts in the image due to changes in temperature or due to the use of optical filter can also be compensated. Misalignment between the mechanical axis and the optical axis of the surgical microscope can also be corrected.

The present disclosure relates to an optical observation device which is controlled in a sterility preserving manner, and to a corresponding controlling program and/or program storage medium. The optical observation device includes a main structure having at least one optical camera, a support structure adapted to variably position the main structure, and a control unit that receives a sequence of images from the at least one optical camera, searches a current image from the sequence of images for a trackable object, tracks the trackable object shown in the sequence of images subsequent to the current image; and controls adjustable properties of AR-content superimposed with the sequence of images in accordance with a motion of the trackable object, wherein the adjustable properties of the AR-content include a location, orientation, and/or size of the AR-content with respect to the sequence of images.

The present disclosure relates to an optical observation device which is controlled in a sterility preserving manner, and to a corresponding controlling program and/or program storage medium. The optical observation device includes a main structure having at least one optical camera, a support structure adapted to variably position the main structure, and a control unit that receives a sequence of images from the at least one optical camera, searches a current image from the sequence of images for a trackable object, tracks the trackable object shown in the sequence of images subsequent to the current image; and controls adjustable properties of AR-content superimposed with the sequence of images in accordance with a motion of the trackable object, wherein the adjustable properties of the AR-content include a location, orientation, and/or size of the AR-content with respect to the sequence of images.

A method for creating a camera model for a camera of a surgical microscope includes positioning a calibration object in an initial pose in an observation region of the camera, determining a pose delta for reaching a first pose for the calibration object in a measurement space of the camera starting from the initial pose, positioning the calibration object in the first pose in accordance with the determined pose delta, making a recording of the calibration object in the first pose with the camera, positioning the calibration object in at least one further pose, making a recording of the calibration object in the at least one further pose, and creating a camera model based on the recordings made, the first pose and the at least one further pose being chosen with a distribution in the measurement space such that a camera model is obtained which represents the entire measurement space.

In order to provide a surgical microscope system (100), a control apparatus (120), and a control method that enable position and orientation of a lens tube to be adjusted without requiring a large-scale system, the surgical microscope system includes an arm (112), a surgical microscope (113), a target value setting unit (122), an estimation unit (123), and a control unit (125), the arm includes a rotatable joint (118), the surgical microscope includes a microscope optical system (114) and a camera (115) that captures an operative field image that is a microscope magnification image of an operative field by the microscope optical system, the surgical microscope being supported by the arm, the target value setting unit sets target values of position and orientation of the surgical microscope, the estimation unit estimates the position and orientation of the surgical microscope on the basis of the operative field image and generates estimated values, and the control unit is configured to control a rotation of the joint in accordance with results of comparison of the target values with the estimated values.