Abstract:
The invention relates to a method for the 3-dimensional measurement of a sample with a measuring system having a 3-dimensional measuring space and comprising a laser scanning microscope, characterised by - providing the measuring system with a 3-dimensional virtual reality device, - creating the 3-dimensional virtual space of the measuring space using the 3-dimensional virtual reality device, - allowing for selecting an operation in the virtual space, - providing real-time unidirectional or bidirectional connection between the measuring space and the virtual space such that an operation selected in the virtual space is performed in the measuring space and data measured in the measuring space is displayed in the virtual space. The invention further relates to a measuring system for the 3-dimensional measurement of a sample, the measuring system having a 3-dimensional measuring space and comprising a laser scanning microscope, characterised by further comprising a 3-dimensional virtual reality device for displaying a 3- dimensional virtual space of the measuring space, and a real-time unidirectional or bidirectional connection is provided between the laser scanning microscope and the 3-dimensional virtual reality device.
Abstract:
A focusing system for focusing an electromagnetic beam for three-dimensional random access applications comprises a first pair of acousto-optic deflectors for focusing an electromagnetic beam in an X-Z plane, and a second pair of acousto-optic deflectors for focusing an electromagnetic beam in a Y-Z plane substantially perpendicular to the X-Z plane. The second pair of acousto-optic deflectors is arranged between the acousto-optic deflectors of the first pair of acousto-optic deflectors such that the first and fourth acousto-optic deflectors of the system belong to the first pair of acousto-optic deflectors and the second and third acousto-optic deflectors of the system belong to the second pair of acousto-optic deflectors.
Abstract:
A focusing system for focusing an electromagnetic beam for three-dimensional random access applications comprises a first pair of acousto-optic deflectors for focusing an electromagnetic beam in an X-Z plane, and a second pair of acousto-optic deflectors for focusing an electromagnetic beam in a Y-Z plane substantially perpendicular to the X-Z plane. The second pair of acousto-optic deflectors is arranged between the acousto-optic deflectors of the first pair of acousto-optic deflectors such that the first and fourth acousto-optic deflectors of the system belong to the first pair of acousto-optic deflectors and the second and third acousto-optic deflectors of the system belong to the second pair of acousto-optic deflectors.
Abstract:
The subject of the invention relates to a combined imaging system (10') that includes a laser scanning microscope (50, 50'), and a measuring device with a lower resolution than the resolution of the laser scanning microscope (50, 50') and that measures over a larger spatial scale than the spatial scale of the laser scanning microscope (50, 50'). The subject of the invention also relates to an MRI compatible laser scanning microscope which comprises: deflecting means (24') for deflecting a laser beam (13), objective (28'), adjustable objective arm (38), distance adapter (39) and at least one detector (30'). The essence of the MRI compatible laser scanning microscope is that at least the objective (28'), the adjustable objective arm (38), the distance adapter (39) and the at least one detector (30') are made from non-magnetisable materials and the deflecting means (24') is magnetically shielded.
Abstract:
The present invention relates to a laser scanning microscope (10) for scanning a sample, the microscope having - focusing means (15) having a focal plane (29) and comprising at least one optical element for focusing a laser beam (13), - drive means (18) for displacing the at least one optical element of the focusing means (15), - at least one detector means (24') for detecting light (13') reflected from the sample or back fluoresced light (13') emitted by the sample,
characterised by the detector means (24') being connected to the drive means (18) such that the drive means (18) may simultaneously displace the detector means (24') with the at least one optical element of the focusing means (15). The present invention further relates to a method of performing 3D scanning with the inventive laser scanning microscope.
Abstract:
The invention relates to a method for correcting motion artifacts of in vivo fluorescence measurements by scanning a plurality of somata with a 3D laser scanning microscope having acousto-optic deflectors for deflecting a focus spot of a laser beam, the method comprising: selecting a scanning point within each somata, extending each scanning point to a plurality of parallel, substantially straight drift lines defining cuboides, preferably having sizes matched to the diameters of the somata, which cuboides are substantially centred on the given scanning points, scanning each drift line by focusing the laser beam at one end of the drift line and providing linear or non-linear chirp signals for the acoustic frequencies in the deflectors for continuously moving the focus spot along the drift line, repeating the measurement to obtain a time series of the scanned cuboids, and correcting motion artifacts using the time series. The invention further relates to a method for correcting motion artifacts of in vivo fluorescence measurements by scanning a 3D trajectory by extending each scanning point of the 3D trajectory to a plurality of parallel substantially straight drift lines which define a substantially continuous volume containing the 3D trajectory.