Abstract:
The invention relates to a compensator system adapted to compensate for the angular dispersion of electromagnetic beams deflected by at least one acousto-optic deflector of an optical system, wherein the angular dispersion of each deflected beam is dependent on the deflection angle obtained by the deflecting acoustic frequency of the acousto-optic deflector, characterised in that the compensator system comprises: - a first lens group for spatially separating the deflected beams of different deflection angle and angular dispersion by focusing the beams substantially into the focal plane, - a compensator element having a first surface and a second surface, and being arranged such that the first surface of the compensator element lies substantially in the focal plane of the first lens group, and the first and second surfaces of the compensator element have nominal radiuses R 1 and R 2 that together work as prisms with tilt angles β and prism opening angles α p that vary with the distance from the optical axis so as to compensate for the angular dispersion of the spatially separated deflected beams, - a second lens group arranged so as to substantially parallelise the different wavelength components of each deflected beam exiting the compensator element while maintaining the angular variation of the beams deflected at different acoustic frequencies. The invention further relates to method for compensating for the angular dispersion of electromagnetic beams deflected by at least one acousto-optic deflector of an optical system, wherein the angular dispersion of each deflected beam is dependent on the deflection angle obtained by the deflecting acoustic frequency, characterised by - spatially separating the deflected beams of different deflection angle and angular dispersion by focusing the beams via a first lens group substantially into the focal plane of the first lens group, - compensating for the angular dispersion of the spatially separated deflected beams in accordance with the angular dispersion of the given beam, - substantially parallelising the spectral components of each deflected beam while maintaining the angular variation of the beams deflected at different acoustic frequencies.
Abstract:
The invention relates to a method for scanning along a substantially straight line (3D line) lying at an arbitrary direction in a 3D space with a given speed using a 3D laser scanning microscope having a first pair of acousto-optic deflectors deflecting a laser beam in the x-z plane (x axis deflectors) and a second pair of acousto-optic deflectors deflecting the laser beam in the y-z plane (y axis deflectors) for focusing the laser beam in 3D. The invention further relates to a method for scanning a region of interest with a 3D laser scanning microscope having acousto-optic deflectors for focusing a laser beam within a 3D space defined by an optical axis (Z) of the microscope and X, Y axes that are perpendicular to the optical axis and to each other.
Abstract:
The invention relates to a method for scanning along a continuous scanning trajectory with a scanner system (100) comprising a first pair of acousto-optic deflectors (10) for deflecting a focal spot of an electromagnetic beam generated by a consecutive lens system (200) defining an optical axis (z) in an x-z plane, and a second pair of acousto-optic deflectors (20) for deflecting the focal spot in a y-z plane being substantially perpendicular to the x-z plane, characterised by changing the acoustic frequency sweeps with time continuously in the deflectors (12, 12') of the first pair of deflectors (10) and in the deflectors (22, 22') of the second pair of deflectors (20) so as to cause the focal spot to move continuously along the scanning trajectory.
Abstract:
The invention relates to a method for scanning along a substantially straight line (3D line) lying at an arbitrary direction in a 3D space with a given speed using a 3D laser scanning microscope having a first pair of acousto-optic deflectors deflecting a laser beam in the x-z plane (x axis deflectors) and a second pair of acousto-optic deflectors deflecting the laser beam in the y-z plane (y axis deflectors) for focusing the laser beam in 3D. The invention further relates to a method for scanning a region of interest with a 3D laser scanning microscope having acousto-optic deflectors for focusing a laser beam within a 3D space defined by an optical axis (Z) of the microscope and X, Y axes that are perpendicular to the optical axis and to each other.
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 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:
Compound of the general formula (I), in which which R1 and R2 represent independently a hydrogen atom, straight-chain or branched, unsubstituted or C1-C10 alkyl or C1-C10 alkoxy group substituted by one or more halogen atoms, substituted or unsubstituted aryl or aralkyl group, with the proviso that at least one of R1 and R2 is not hydrogen, one of R3 and R4 is a hydrogen atom, and the other represents a group of the general formula (II) wherein R5 and R6 represent independently a hydrogen atom, C1-C4 alkyl, C1-C4 alkoxy group, or R5 and R6 together form a -O-CH2-O- group, R7 represents a hydrogen atom, C1-C4 or C1-C4 alkoxy group, and tautomeric forms and salts thereof.
Abstract:
The present invention relates to a virtual reality simulator (10) for small laboratory animals (100), in particular rodents, which comprises a head clamping mechanism (20) for securing the laboratory animal (100) and virtual reality glasses (40) with two wings (30), each of the wings (30) having a display (34) and a lens system (36) spaced therefrom and connected together by a light barrier cover (32), and the virtual reality glasses (40) are configured to allow the two wings (30) to align with each of the eyes (101 ) of the laboratory animal (100), respectively. The invention further relates to a method applying such a simulator (10).
Abstract:
The invention relates to an acousto-optic deflector comprising a bulk of acousto-optic medium and acoustic wave generator coupled to the bulk, characterised by that the acoustic wave generator comprises at least two different electro-acoustic transducers for generating acoustic waves in the bulk.