Abstract: A microscope arrangement (200) is for viewing an object or an intermediate image, which is generated by an object, especially in microsurgery. The microscope arrangement (200) includes an objective arrangement (201) having an object plane (209) for arranging the object or intermediate image (210) to be viewed. The microscope arrangement has a focus offset adjusting unit (260) which outputs a focusing offset signal in order to defocus in a defined manner the objective arrangement relative to a focusing state.

Abstract: A dental apparatus uses a white light interferometer (7) and has an emitter (31) for emitting measurement radiation toward a tooth, a receiver (31) for receiving measurement radiation reflected by the tooth, superposition equipment (21) for superposing reference radiation and reflected measurement radiation, and a detector (23) for detecting the superposed radiation and generating an interferometric signal representing the superposed radiation. The emitter (31) and receiver (31) are in the distal end (5) of a dental instrument (1) that can be brought close to the tooth. A control unit (13) causes the white light interferometer (7) to carry out depth scans of the tooth. An analyzer (9) receives the interferometric signal from the detector (23) and determines a distance to the pulp of the tooth from its surface. A warning device (11) is connected to the analyzer (9) and emits a signal when the distance reaches a predetermined minimum distance.

Abstract: A medical illumination unit (1) has an LED chip (15) and a rod-shaped body (5) with a proximal end (11) and a distal end (7). A distal hollow section (9) begins before the distal end (7) and reaches the distal end (7), and a supply lead section (12) begins at the proximal end (11) and reaches the distal hollow section (9). The LED chip (15) is in the distal hollow section of the rod-shaped body (5) and is supplied with energy through the supply lead (12). A luminescent converter is between the LED chip (15) and the distal end (7) of the rod-shaped or tubular body or at the distal end of the rod-shaped body (5), the converter properties of which are selected to convert light emitted by the LED chip (15) into light with a desired wavelength distribution.

Abstract: A microscopy system comprises a microscopy optics and a stand supporting the microscopy optics. The stand has a plurality of hinges, of which a first group comprises a position detecting sensor for sensing a hinge position and a second group comprising an actuator for the change of the hinge position. In an automatic control mode, the actuators are controlled in dependence of signals of the position detecting sensors.

Abstract: Method for connecting wireless electric actuating devices (2) to a medical appliance (1) via a wireless communication channel, having the steps of initiating the connection operation for a wireless electric actuating device (2) to a medical appliance (1) and performing a connection procedure, in which the actuating device (2) is assigned to the medical appliance (1), characterized in that the initiation of the connection operation is carried out from the medical appliance (1).

Abstract: A microscope system for imaging an object which can be arranged in an object plane of the microscope system, which includes an imaging system, a displacement device and a controller is described. The imaging system may provide at least one optical imaging path for imaging an imaging field of the object plane. The displacement device may be adapted to translatory displace the imaging field of the imaging system in the object plane. The controller is adapted to determine a desired displacement of the imaging field in the object plane and to correspondingly control the displacement device.

Abstract: A secondary light source is provided comprising a narrowband light source (11) that emits narrowband light as a primary light source, an optical waveguide (5) having a proximal and a distal end (9), a coupling-in device (13) that is arranged at the proximal end (7) of the optical waveguide (5) and serves for coupling the narrowband light into the optical waveguide (5), and a phosphor region (19) that is present at or before the distal end (9) of the optical waveguide (5), said phosphor region being provided with a converter phosphor. The converter phosphor of the phosphor region (19) is chosen with respect to the narrowband light emitted by the narrowband light source (11) in such a way that it increases the wavelength of at least part of the narrowband light.

Abstract: A method and an apparatus for displaying a part of a brain of a patient is described. Laser-Doppler-images are acquired before and after a stimulation. The laser-Doppler-images include information about a blood motion or about a perfusion at the acquired part. Then, the blood motion images acquired before and after the stimulation are compared to identify areas in the brain of the patient which are related to the stimulation.

Abstract: A stand (1) for a medical-optical instrument (3) is made available, with a link arrangement (15) having at least one link (13, 17, 19, 21) and with an active vibration damping device (33, 35, 37) which comprises at least one vibration pick-up (33) for picking up a vibration to be damped and at least one actuator (37) for generating a damping countervibration. The at least one actuator (37) is arranged on the surface of a link (19) of the link arrangement (15) at a distance from a vibration antinode of the vibration to be damped and is designed for exerting a force on the link (19).

Abstract: An examination system and a corresponding examination method, comprise: Arranging a tissue region in a vicinity of an object plane of a microscope and generating an optical image of the tissue region, receiving tissue data from a measuring head separate from the microscope, discriminating the tissue data into at least two data categories and displaying markings in the optical image of the tissue region in dependence of the discriminated data category and a relative position between a component of the microscope and the measuring head.

Abstract: A microscopy system method for inspecting a retina of an eye including generating an inverted intermediate image of the retina using an ophthalmoscopic lens; detecting a left image of the intermediate image from a left viewing direction and detecting a right image of the intermediate image from a right viewing direction; and displaying an inverted representation of the detected left image to a right eye of a user and displaying an inverted representation of the detected right image to a left eye of the user.

Abstract: A head magnifier is provided, comprising magnifying optics as well as a coupling mechanism for attaching the magnifying optics to a head mount which can be placed on a user's head. The coupling mechanism has a swivel mechanism enabling swiveling of the magnifying optics relative to the head mount about a swivel axis, and an adjusting mechanism enabling adjustment of the distance between the magnifying optics and either the swivel axis or the head mount by moving the magnifying optics along a longitudinal axis. The swivel mechanism provides a swivel angle range for the magnifying optics and enables setting and fixing of different swivel angles of the magnifying optics, said angles falling within the swivel angle range. The swivel axis extends in front of the user's head in the mounted condition of the head magnifier, and the adjusting mechanism telescopes with the magnifying optics mounted to the mechanism's front end.

Abstract: The invention relates to a microscopy system for representing an object that can be placed on an object plane (1) of the microscopy system, the latter comprising a representation system (26) containing several optical elements for providing at least one optical representation path (2a, 2b, 2c, 2d). According to one embodiment of the invention, the optical elements comprise a plurality of optical lenses (4-8, 11, 13, 14), through which the optical representation path(s) (2a-2d) pass(es) in sequence and which represent the object plane (1) in an intermediate image (P). The optical lenses (4-8, 11) are configured in such a way that the representation of the object plane (1) in the intermediate image (P) is reduced a maximum 0.9 times, preferably a maximum 0.8 times, preferably a maximum 0.6 times, with 0.5 times being the preferred maximum reduction.

Abstract: A support is designed to receive an operation microscope. This support has a support column, movable around a rotation axis, with a first carrier arm and a second carrier arm which, with respect to the first carrier arm, can be moved around a first pivot axis and a second pivot axis. A cable connection is provided for producing a restoring force for the second carrier arm, and couples the second carrier arm to a counterweight for producing a restoring force around the second pivot axis. The counterweight is arranged in the region of the support column, to minimize inertial action accompanying a movement of the support around the rotation axis. A freewheel rotary joint is provided in the cable connection to suppress a feedback to the counterweight of a movement of the second carrier arm around the first pivot axis.

Abstract: A camera holder (3) is provided for fixing a camera (11) or a camcorder to an optical observation device. The holder (3) has a variable-length sleeve (13) with a first end configured to receive the camera objective and a second end configured to secure the sleeve (13) relative to the optical observation device. The holder (3) also has an adjusting device (19) fixed to the sleeve (13). The adjusting device (19) has a pin for connection with a stand mating thread of a camera (11) and is configured to compensate for an offset between the stand mating thread and the camera objective. The adjusting device (19) enables the camera (11) to be positioned with respect to the sleeve and the optical observation device.

Abstract: A cableless remote control system (2) for a medical device is provided. The remote control system (2) comprises a first battery (16), a second battery (18), a control module (10) for attaching or for installing in the medical device (8), at least one remote control operating unit (6) and a charging station (4). The first battery (16) is arranged in the remote control unit (6), the second battery is allocated to the charging unit (4).

Abstract: An image sensor and a circuitry associated with the image sensor is used for recording a series of fluorescence images. The image sensor comprises a plurality of pixels for accumulating charges generated by incident radiation, and the circuitry converts the charges accumulated in the pixels into binary numbers. A gain of the circuitry is adjustable. The gain is set to a suitable maximum value at the beginning of a recording procedure. The gain is reduced if it is determined during the recording procedure that one or more brightness values of the recorded image exceed a suitably chosen maximum brightness value.