Carl Zeiss Jena Gmbh

Carl Zeiss Microimaging Gmbh

Other

Carl Zeiss Microscopy Gmbh

European Molecular Biology Laboratory

Gunter Moehler

Ralf Wolleschensky

Stefan Wilhelm

Mirko Liedtke

Sebastian Tille

Ulrich Simon

Volker Gerstner

Ulrich Meisel

Guenter Schoeppe

Nico Presser

Dietmar Schmidt

Burkhard Roscher

Ernst H Stelzer

Andreas Kuehm

Burkhard Goetz

Ernst Hans Karl Stelzer

Uwe Voigt

A method and apparatus for actuating an acousto-optical component for manipulating light passing therethrough, in particular for manipulating the illumination and/or detection light in the beam path of a microscope, preferably a laser scanning microscope, where the illumination and/or detection wavelength is adjusted by means of at least one frequency generator connected to the acousto-optical component and controlling the manipulation, the frequency generator generates a signal which generates a spectral spread for the intensity distribution of the wavelength of the illumination and/or detection light for ensuring a temperature-independent manipulation. Actuation is effected by two or more actuation signals in such a way that two or more overlapping and/or superposing main lobes of the transfer function of the acousto-optical component or main maxima are generated.

Method and apparatus for actuating an acousto-optical component

A peripheral interface and process for data transfer, especially for laser scanning microscopes. The peripheral interface permits a gap-free transfer of data with high transmission speed using a non-real-time-enabled operating system of the control computer. A peripheral connection for a peripheral device and a control unit serving for one-way transmission of a predetermined amount of data from the control computer to the peripheral device and/or vice versa accesses via a system bus of a control computer, a work memory region of the control computer serves as buffers preassigned to it, where the control unit prepares for the control computer a progress report of the transfer for retrieval and the control unit of the control computer is informed of the progress of the processing of the buffer independently of the transfer.

Peripheral interface and process for data transfer, especially for laser scanning microscopes

Specimen laser-scanning microscope with raster scanning illumination and detector modules, which illuminates and detects a specimen by raster scanning. A real-time control device (device) performs synchronous reading-out with the raster scanning pixel cycle. A data port serially communicates with the device using a bidirectional high-speed data stream and with the resources via a serial, bidirectional high-speed data stream with a data conversion to/from parallel to serial. The high-speed data stream is made up of data packets with data bits and type bits and no additional header or protocol bits. The data bits contain data from/on the resources and the type bits code the type of data. Type information is stored in the resources as well as the device. The type information defines processing functions for data types coded by the type bits, and the resources and/or the device determine the data type using type bits and process data coded in the data bits.

Laser scanning microscope with high-speed data processing

A method for detecting and analyzing light signals, in which a light signal impinges an optoelectric converter, where it is converted into an electric signal and the electric signal subsequent to the conversion is distributed into several analysis channels (-), within each analysis channel (), (i) a signal analysis is performed, which is different from the signal analysis for the other analysis channels (-) and (ii) an output signal is created. In such a method, one or more output signals are selected for further processing and output using a specified, changeable selection criterion.

Method and arrangement for detecting light signals

A process for confocal microscopyis disclosedin which laser light is coupled into a microscope beam path, directed successively with respect to time onto different locations of a specimen, and an image of the scanned plane is generated from the light reflected and emitted by the irradiated locations. A change in the spectral composition and in the intensity of lightisarecarried out during the deflection of the laser beam from location to location, while the deflection continues in an uninterrupted manner. In this way,so thatat least twoadjacentlocations of the specimenlocated next to one anotherare acted upon by light with different spectral characteristics and by laser radiation of different intensity. By periodically interrupting the coupling in of the laser light during the deflection of the microscope beam path,it is made possible thatonly selected portions of the image field are acted upon by the laser radiation. A laser scanning microscope for carrying out this process is also disclosed.A laser scanning microscope for carrying out this process is also disclosed.

Process and arrangement for confocal microscopy

A method of optical detection of characteristic quantities of an illuminated specimen comprising detecting a signal that is backscattered, reflected and/or fluoresced and/or transmitted from the specimen by a spatially resolving detector wherein radiation coming from the specimen is imaged on the detector, shifting the position of the radiation which is measured in a spatially resolved manner relative to the detector and determining intermediate values by an algorithm from the signals measured in different shifts for purposes of increasing the spatial resolution of the detector. An arrangement for performing the method is also disclosed.

Method for increasing the spectral and spatial resolution of detectors

A microscope with optical components which are provided in the illumination beam path and/or observation beam path and/or detection beam path for exerting different spectral influences on at least one of the beam paths mentioned above. An arrangement comprising a light source emitting a plurality of wavelengths and at least one spectral sensor detecting the light of this light source after interacting with a component are provided, preferably outside these beam paths. The interaction is carried out by transmission or reflection of the light by the component. The detected values of the spectral sensor are compared to pre-stored values and correlation with pre-stored values is advantageously carried out in a storage. The correlation is carried out together with a position signal of a component changer. The detected values are stored separately and together with a position signal of a component changer when there is no correlation with pre-stored values.

Microscope with position detection of changers of optical components

A method for optical detection of characteristic quantities of the wavelength-dependent behavior of an illuminated specimen, such as the emission behavior and/or absorption behavior, preferably the fluorescence and/or enzyme fluorescence comprises determining at least one spectral centroid and/or a maximum of the emission radiation and/or of the absorbed radiation. An arrangement for performing the method is disclosed.

Method for the detection of dyes in fluorescence microscopy

A method for monitoring a control system is disclosed comprising a plurality of control units, preferably for an optical measurement device or observation device. In a method of this type, it is provided that at least one control unit with master capability is incorporated in the communication between the control station and the rest of the control units and communicates with at least one of the control units for purposes of detecting status data and communicates with the control station for purposes of conveying the detected status data. In this way, polling for determining the current status is not the exclusive responsibility of the control station but, rather, can be taken over&#x2014;at least partially or so as to be limited to determined processes&#x2014;by the control unit with master capability enabled for this purpose. A control system for accomplishing the method is also disclosed.

Method for monitoring a control system

A method is disclosed for operation of an image-generating optical system for detection of characteristic quantities of the wavelength-dependent behavior of an illuminated specimen, such as the emission behavior and/or absorption behavior and, in particular, the fluorescence and/or luminescence and/or phosphorescence and/or enzyme-active light emission and/or enzyme-active fluorescence, for the operation of a laser scanning microscope, comprising the steps of splitting the image point information of the specimen into spectral components in a spatially resolved manner on the detection side in dependence on wavelength and carrying out at least one summing for different spectral components.

Method and apparatus for rapid change of fluorescence bands in the detection of dyes in fluorescence microscopy

In light detection systems for illuminating specimens having a plurality of detection channels, particularly channels employing laser scanning microscopes, an improved method comprises assigning an upper and/or lower limiting value which is adjustable for at least one channel and changing the channel to be detected with respect to its mode of operation when the limiting value is reached.

Method for optical detection of an illuminated specimen in a plurality of detection channels

A method for detecting the maximum quantity of possible positions of an exchangeable nosepiece or slide in a microscope system is disclosed. The method comprises the steps of: starting from an initial position which corresponds to a first position, adjusting the maximum position; comparing the maximum position to a position registered in a memory; and storing the results of the comparison.

Recognition of the maximum position of a revolving dial or slide on microscopes

A process for confocal microscopy is disclosed in which laser light is coupled into a microscope beam path, directed successively with respect to time onto different locations of a specimen, and an image of the scanned plane is generated from the light reflected and emitted by the irradiated locations. A change in the spectral composition and in the intensity of light is carried out during the deflection of the laser beam from location to location, while the deflection continues in an uninterrupted manner. In this way, at least two locations of the specimen located next to one another are acted upon by light with different spectral characteristics and by laser radiation of different intensity. By periodically interrupting the coupling in of the laser light during the deflection of the microscope beam path, it is made possible that only selected portions of the image field are acted upon by the laser radiation. A laser scanning microscope for carrying out this process is also disclosed.

Growing community of inventors

Jena, Germany

Gunter Moehler