Abstract: The present invention relates to a device and a corresponding method having a light source (20) for emitting light, an interferometer (10), into which light emitted by the light source (20) is injected, for irradiating a sample (1) with light, and a, in particular spatially resolving, detector (40) for detecting interference patterns obtained by superimposing the light reflected from the sample (1) with a partial beam of the light injected into the interferometer (10) which is reflected at a reference mirror (16) of the interferometer (10). In order to obtain OCT images in the simplest way possible and with the highest possible resolution and image quality, the light source (20) comprises a radiation source (21) for generating spatially incoherent light, and an optical filter (22) with a bell-shaped or Gaussian-shaped spectral filter characteristic for filtering the light generated by the radiation source (21).

Abstract: The invention relates to a system for optical coherence tomography having an interferometer (20) which has a beam splitter (24), a reflector (25), an illumination arm (21), a specimen arm (22) and a reference arm (23). In order to increase the compactness of the system with at the same time a high image quality a specimen objective is provided in the specimen arm (22) of the interferometer (20) by means of which light is focussed into a focus lying in or on the specimen (1). Moreover, in the reference arm (23) of the interferometer (20) a reference objective is provided by means of which light is focussed onto the reflector (25). The optical properties of the specimen objective differ from the optical properties of the reference objective.

Abstract: The invention relates to a system and a corresponding method for optical coherence tomography having at least one interferometer for emitting light with which a specimen is irradiated, a specimen arm comprising a specimen objective by means of which light emitted by the interferometer is focused in a focus lying within the specimen, a detector for collecting light which is reflected by the specimen, and a control unit for controlling the system such that during the collection alight, which is respectively reflected at different depths of the specimen, the imaging properties of the specimen objective are changed.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) for emitting light with which a specimen (1) is irradiated, the interferometer (1) comprising a beam splitter (13) and at least one reflector (12) the optical distance (I) of which from the beam splitter (13) is changeable, and a detector (30) which has a plurality of detector elements arranged in an area by means of which the light which is reflected by the specimen (1) is collected.

Abstract: The present invention relates to a method as well as a corresponding system (50) for optical coherence tomography in which a first image (60) is acquired in the region of a first plane of an object (1) by means of an optical coherence tomography equipment, and the first image (60) is displayed on a display device (52). To facilitate a reliable and time-saving examination with straightforward handling, provision is made that a second plane of the object (1) is selected on the basis of the first image (60) that is displayed on the display device (52), wherein the second plane of the object (1) is different from the first plane of the object (1), and a second image (61) is acquired in the region of the selected second plane of the object (1) by means of the optical coherence tomography equipment.

Abstract: The present invention relates to a method as well as a corresponding system (50) for optical coherence tomography, where, by means of an optical coherence tomography equipment, a first image (60) is acquired in the region of a first plane of an object (1) and a second image (61) is acquired in the region of a second plane of the object (1), wherein the second plane of the object (1) is different from the first plane of the object (1). To facilitate a reliable and time-saving examination of the object (1), with the most straightforward handling possible, the first image (60) is acquired in the region of the first plane (S) of the object (1) and the second image (61) is acquired in the region of the second plane (F) of the object (1) in real time, and the first image (60) or the second image (61) is rendered as a real time image and the respectively other image, i.e.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) for emitting light with which a specimen (1) is irradiated, the interferometer (10) comprising a beam splitter (13) and at least one reflector (12) the optical distance (I) of which from the beam splitter (13) can be changed by an optical path (L), and a detector (30) with a first number of detector elements arranged in a first area for collecting light which is reflected by the specimen (1). In order to be able to record images of a specimen, in particular in real time, more simply and quickly, the system is operated in a first mode in which light reflected by the specimen (1) is only collected by a second number of detector elements of the detector (30) and converted into corresponding detector signals, the second number of detector elements being smaller than the first number of detector elements.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) which has a beam splitter (13), a first reflector (11) and a reflector (12) the optical distance (I) of which from the beam splitter (13) is changeable by a speed (v), and a detector (30) for collecting light which is reflected by a specimen (1) to be examined. In order to reduce the times required for the most reliable possible recording of interference patterns, provision is made such that the intensity of the light (14 or 4) injected into the interferometer (10) or emitted by the interferometer (10) is modulated with a modulation frequency (fM) which is not equal to the Doppler frequency (fD), the Doppler frequency (fD) being given by twice the ratio of the speed (v) of the change of the optical distance (I) between the reflector (12) and the beam splitter (13) to the average wavelength (?0) of the injected light (14): fM?fD=2·v/?0.

Abstract: The present invention relates to a method as well as a corresponding system for optical coherence tomography in which by means of an optical coherence tomography equipment at least two two-dimensional initial images (S) of an object are acquired in planes of the object that are spaced apart from one another, in particular running parallel to one another, wherein the initial images each comprise a plurality of initial image values. In order to assure an examination of the object in the case of medical applications that is as reliable as possible, an interpolation of the initial image values of the at least two two-dimensional initial images (S) is performed in three-dimensional space, wherein interpolation values are obtained that form a two-dimensional final image (S?).

Abstract: The invention relates to a system and a corresponding method for optical coherence tomography having at least one interferometer for emitting light with which a specimen is irradiated, a specimen arm comprising a specimen objective by means of which light emitted by the interferometer is focussed in a focus lying within the specimen, a detector for collecting light which is reflected by the specimen, and a control unit for controlling the system such that during the collection alight, which is respectively reflected at different depths of the specimen, the imaging properties of the specimen objective are changed.

Abstract: The present invention relates to a device and a corresponding method having a light source (20) for emitting light, an interferometer (10), into which light emitted by the light source (20) is injected, for irradiating a sample (1) with light, and a, in particular spatially resolving, detector (40) for detecting interference patterns obtained by superimposing the light reflected from the sample (1) with a partial beam of the light injected into the interferometer (10) which is reflected at a reference mirror (16) of the interferometer (10). In order to obtain OCT images in the simplest way possible and with the highest possible resolution and image quality, the light source (20) comprises a radiation source (21) for generating spatially incoherent light, and an optical filter (22) with a bell-shaped or Gaussian-shaped spectral filter characteristic for filtering the light generated by the radiation source (21).

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) for emitting light with which a specimen (1) is irradiated, the interferometer (10) comprising a beam splitter (13) and at least one reflector (12) the optical distance (I) of which from the beam splitter (13) can be changed by an optical path (L), and a detector (30) with a first number of detector elements arranged in a first area for collecting light which is reflected by the specimen (1). In order to be able to record images of a specimen, in particular in real time, more simply and quickly, the system is operated in a first mode in which light reflected by the specimen (1) is only collected by a second number of detector elements of the detector (30) and converted into corresponding detector signals, the second number of detector elements being smaller than the first number of detector elements.

Abstract: In a method and a system for optical coherence tomography, light, with which a specimen (1) is irradiated, is emitted by an interferometer (10), which comprises a beam splitter (13) and a reflector (12). Light reflected by the specimen (1) is collected by a detector (11), and the reflector (12) is brought into a number of positions at different optical distances away from the beam splitter (13). To record images of a specimen (1) easily and quickly, with high quality, the light reflected by the specimen (1) is collected a number of times by the detector (11) and converted into corresponding detector images, while the reflector (12) in the respective position is in the rest position. An averaged detector image is obtained for each position. A tomogram is generated from the averaged detector images obtained for the different positions of the reflector (12).

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) for emitting light with which a specimen (1) is irradiated, the interferometer (1) comprising a beam splitter (13) and at least one reflector (12) the optical distance (I) of which from the beam splitter (13) is changeable, a specimen objective by means of which light emitted by the interferometer (10) is focussed in a focus lying within the specimen (1), and a detector (30) for collecting light which is reflected by the specimen (1).

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having a light source (15) for producing light (14), a first interferometer (10), a second interferometer (20) and an optical fiber (17) by means of which light emitted by the first interferometer (10) is conveyed to the second interferometer (20). For simpler and more efficient injection of the light emitted by the first interferometer (10) into the optical fiber (17) provision is made such that light is injected into the first interferometer (10) which has a first number of transversal modes, and the optical fiber (17) has at least one multi-mode fiber into which the light passing out of the first interferometer (10) is injected such that in the optical fiber (17) a second number of transversal modes is stimulated which is conveyed to the second interferometer (20), the second number of transversal modes being substantially greater than the first number of transversal modes.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) and a detector system (30, 31) which comprises a detector (30) for collecting the light reflected by a specimen (1) to be examined and has a sensitivity to the light reflected by the specimen (1). In order to reduce the times required for the most reliable possible recording of interference signals provision is made such that the sensitivity of the detector system (30, 31) to the light reflected by the specimen (1) and impinging on the detector (30) is modulated with a modulation frequency.

Abstract: The invention relates to a system for optical coherence tomography having an interferometer (20), a detector (30) with a first number of detector elements for collecting light, and an optical fiber (29) with a second number of individual fibers for transmitting light from the interferometer (20) to the detector (30). In order to increase the compactness of the system with at the same time high image quality provision is made such that the detector elements have a first center-center distance and the individual fibers have a second center-center distance, the first center-center distance between the detector elements being greater than the second center-center distance between the individual fibers.

Abstract: A method and to a corresponding system for optical coherence tomography, light, with which a specimen (1) is irradiated, being emitted by an interferometer (10), the interferometer (10) comprising a beam splitter (13) and a reflector (12), light reflected by the specimen (1) being collected by a detector (11), and the reflector (12) being brought into a number of different positions different optical distances away from the beam splitter (13). In order to be able record images of a specimen (1) easily and quickly, with the highest possible quality, provision is made such that light reflected by the specimen (1) is collected a number of times by the detector (11) and converted into corresponding detector images, while the reflector (12) in the respective position is in the rest position. The detector images obtained for the respective position of the reflector (12) are then averaged, for each position an averaged detector image being obtained.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) and a detector system (30, 31) which comprises a detector (30) for collecting the light reflected by a specimen (1) to be examined and has a sensitivity to the light reflected by the specimen (1). In order to reduce the times required for the most reliable possible recording of interference signals provision is made such that the sensitivity of the detector system (30, 31) to the light reflected by the specimen (1) and impinging on the detector (30) is modulated with a modulation frequency.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) for emitting light with which a specimen (1) is irradiated, the interferometer (1) comprising a beam splitter (13) and at least one reflector (12) the optical distance (I) of which from the beam splitter (13) is changeable, and a detector (30) which has a plurality of detector elements arranged in an area by means of which the light which is reflected by the specimen (1) is collected.