Abstract: The otoscope comprises a head portion (11) including a through-hole (24) extending continuously from a proximal end to a distal end along a viewing path and a speculum receptacle (14) tapering towards the distal end and surrounding the through-hole (24), wherein a speculum (50) is attachable to the speculum receptacle (14). Lens means (26) including at least one lens (36) is configured to be movable from a viewing position, in which the lens (36) is arranged in the viewing path, to a clearance position, in which the lens (36) is arranged outside the viewing path. In the viewing position of the lens means (26) the lens (36) is arranged inside the through-hole (24) far enough for the distance between the lens (36) and the distal end (52) of an attached speculum (50) to be smaller than the focal length (F) of the lens (36).

Abstract: The otoscope includes a mounting device (14) in which an ear speculum (16) is releasably attached, the ear speculum (16) including a conically tapering cone portion (20). The ear speculum (16) includes a substantially cylindrical base portion (24) being coaxial to the cone portion (20) and having a diameter which is larger than the largest diameter of the cone portion (20) and being connected through an intermediate wall portion (22) to the cone portion (20). At least one cutout (40) extending to the free edge of the base portion (24) is formed in the base portion (24) of the ear speculum (16).

Abstract: A scanner is used for scanning an object (3, 4, 5), in particular a tooth or a plurality of teeth or a dental cast. The scanner (1) comprises a projector (2) for projecting a pattern (7) onto the object (3, 4, 5) and a camera which comprises a recording optics and an image sensor (18). To improve such scanner, the recording optics comprises a first imaging optics (9) and a second imaging optics (10).

Abstract: In a method for the 3D digitalization of an object with variable surface a plurality of camera pictures of partial surfaces of the object (4) are taken and put together for determining the 3D coordinates of the partial surface of the object (4). Camera pictures are taken of partial surfaces of the object (4), which overlap at their edges. For each camera picture the 3D coordinates of the associated partial surface of the object (4) are determined. The 3D coordinates of these partial surfaces of the object (4) are matched and put together by a matching method. Each camera picture is divided into subframes (1.1-1.9, 2.1-2.9, 3.1-3.9) which overlap at their edges and which overlap with the subframes of adjacent camera pictures. To the subframes (1.1-3.9), the associated 3D coordinates from the camera pictures are assigned. The 3D coordinates of the subframes (1.1-3.9) are matched and put together by a matching method. The method can iteratively be carried out several times.

Abstract: The spacer attachment for a dermatoscope comprises an outer sleeve (12) including an attachment end configured for releasable attachment to the illumination head of a dermatoscope and a contact end intended to be placed on the skin of a patient at an examination location. A filter insert (30) is releasably attached in the outer sleeve (12) by rotation about the central axis of the outer sleeve (12), wherein the filter insert (30) includes a viewing plate (52) intersected perpendicularly by the central axis of the outer sleeve (12). The filter insert (30) is releasably attached to the outer sleeve (12) by a rotation snap device comprising at least one resilient snap hook (44) which is arranged at the outer circumference of the filter insert (30) and resiliently engages around a projection (26) provided at the inner wall of the outer sleeve (12).

Abstract: A method serves for the determination of the 3D coordinates of an object. An improved method of this kind is characterized in that the object is surrounded by a plurality of reference probes having coded reference marks; and in that a plurality of shots are taken of the object such that a part of the object and a part of a reference probe is in each case included thereon.

Abstract: A scanner is used for scanning an object (3, 4, 5), in particular a tooth or a plurality of teeth or a dental cast. The scanner (1) comprises a projector (2) for projecting a pattern (7) onto the object (3, 4, 5) and a camera which comprises a recording optics and an image sensor (18). To improve such scanner, the recording optics comprises a first imaging optics (9) and a second imaging optics (10).

Abstract: An improved apparatus for determining the 3D coordinates of an object (1) includes a projector (10) for projecting a pattern onto the object (1), a camera (11) connected to the projector (10) for taking the object (1), and a reference camera (16) connected to the projector (10) and to the camera (11) for taking one or more reference marks (6, 24) of a field (25) of reference marks (only FIGURE).

Abstract: This invention relates to a method and an apparatus for the three-dimensional digitization of objects with a 3D sensor, which comprises a projector and one or more cameras, in which a pattern is projected onto the object by means of the projector, and the pattern is detected with the one or more cameras. In accordance with the invention, the method and the apparatus are characterized in that at least three reference marks and/or a reference raster are projected onto the object with the 3D sensor and are detected with two or more external, calibrated digital cameras.

Abstract: In a method for 3D digitization of an object (1), a plurality of camera images of the object are recorded and assembled to determine the 3D coordinates of the object. To improve such method, pictures are taken from the object (1), from which 2D feature points (11, 12, 13; 21, 22, 23) of the object (1) are determined. The 3D coordinates of the 2D feature points are determined. The 2D point correspondences (32, 32, 22) between the 2D feature points of a picture and the 2D feature points of another picture are determined. Several of these 2D point correspondences are selected, and an associated 3D transformation is determined. The quality of this 3D transformation is determined with reference to the transformed 3D coordinates of the 2D feature points. Valid 3D feature points are determined therefrom. For assembling the camera images of the object (1), the 3D coordinates of the valid 3D feature points are used.

Abstract: A loupe support system includes a frame (12) which can be mounted at the head of a user and at which a holding device (18) is mounted, an elongated support element (30, 31, 68) which, at its central region, is supported at the holding device (18) such that it can rotate about its longitudinal central axis, wherein a respective loupe ocular (34) is mounted at the support element (30, 31, 68) on each of both sides of the holding device, and a light mounting element (22) supported at the holding device (18) such that it can rotate about a rotary axis being coaxial with respect to the longitudinal central axis of the support element (30, 31, 68).

Abstract: The present invention relates to a method and a device for determining the spatial position of a sensor, in which a rough position information initially is determined by rough detection of the position of the sensor, and then the more accurate position of the sensor is obtained by measuring at least three reflectors mounted on the sensor with a laser tracker, wherein the search region of the laser of the laser tracker is limited for the reflectors with reference to the rough position information.

Abstract: An improved method for surveying actual measurement data of a component, which originate from an optical scan, is characterized in that the actual measurement data (2) of the component (1) are surveyed by means of a measurement program (24) for a tactile coordinate measuring instrument, wherein the measurement program (24) generates a virtual measuring stylus of a virtual coordinate measuring instrument, which surveys the actual measurement data of the component.

Abstract: In a method for the 3D digitalization of an object with variable surface a plurality of camera pictures of partial surfaces of the object (4) are taken and put together for determining the 3D coordinates of the partial surface of the object (4). Camera pictures are taken of partial surfaces of the object (4), which overlap at their edges. For each camera picture the 3D coordinates of the associated partial surface of the object (4) are determined. The 3D coordinates of these partial surfaces of the object (4) are matched and put together by a matching method. Each camera picture is divided into subframes (1.1-1.9, 2.1-2.9, 3.1-3.9) which overlap at their edges and which overlap with the subframes of adjacent camera pictures. To the subframes (1.1-3.9), the associated 3D coordinates from the camera pictures are assigned. The 3D coordinates of the subframes (1.1-3.9) are matched and put together by a matching method. The method can iteratively be carried out several times. (FIG.

Abstract: In a method for the determination of the 3D coordinates of an object (2), a pattern is projected (1) onto the object (2) and the pattern reflected by the object (2) is taken (3) and evaluated. To improve such a method, a pattern is projected onto a first part region (12) of the object (2) in a first step and the pattern reflected by this part region (12) of the object (2) is taken. In a second step, a pattern is projected onto a second part region of the object (2) and the pattern reflected by this part region of the object (2) is taken. The patterns taken are evaluated.

Abstract: In a method of determining the 3D coordinates of the surface (1) of an object (2), the surface (1) of the object (2) is scanned by a scanner (3) for acquiring object data. The position and orientation of the scanner (3) for acquiring positional data are determined, in particular by a tracking system (4). The object data and the positional data are transferred to a controller (5) which determines the 3D coordinates of the surface (1) of the object (2) from them. To improve such a method, the object data are wirelessly transmitted from the scanner (3) to the controller (5).

Abstract: An illumination device comprises at least one LED (36), which can be connected through circuit means (50) to a voltage source optionally formed by a battery unit (70) or an accumulator unit (74). Furthermore, a first contact means (60) is provided for connecting the battery unit (70) and a second contact means (64) for connecting the accumulator unit (74) to the circuit means (50). A bottom unit for a battery grip (11) comprising a grip sleeve (90) in which the accumulator unit (74) is arranged, has a basic body (84) mountable at the lower end of the grip sleeve (90), wherein an upper contact element (89) for contacting the accumulator unit (74) and a lower contact element (95) for contacting a contact element (107) of a charging station, to which a current is applied, are arranged in the basic body (84).

Abstract: An LED lamp having a hollow cylindrical housing made of metal and a generally cylindrical elongate cooling body made of ceramic, which is arranged in the housing and the outer surface of which lies against the inner surface of the housing. An LED unit is mounted at the front face of the cooling body. A lens system is mounted at the front-face end of the housing in front of the LED unit. A groove is formed at the outside of the cooling body, which groove extends in the longitudinal direction of the cooling body and in which at least one of the connecting lines for the LED unit is arranged.