摘要:
Microscope system for acquiring a plurality of images, comprising: a zoom system which is configured to continuously vary a magnification of the microscope system over a magnification range of the microscope system, wherein the zoom system comprises two movable zoom components, which are arranged movably along a common optical axis of the microscope system; an aperture stop, which is configured such that a plurality of different observation beam paths of the microscope system are selectable, which traverse the zoom system; wherein the aperture stop, as seen along the optical axis, is arranged between the two movable zoom components; and wherein for all values of the magnification within the magnification range, the aperture stop is located within an aperture stop range which is measured along the optical axis and which surrounds a pupil position of the microscope system.
摘要:
A method of detecting a brain tumor includes administering indocyanine green to a living body; exposing brain tissue in the living body; irradiating the exposed brain tissue with excitation light of indocyanine green; obtaining an image based on fluorescence of the excited indocyanine green in the brain tissue, wherein the image is obtained using an endomicroscope; and identifying portions of the brain tissue corresponding to the brain tumor based on the image.
摘要:
An optical viewing system (100) for viewing an object region has a display unit (105) which has a plurality of controllable display segments which make available color pulse sequences in order to generate a display image which is built up of a plurality of image points. The optical viewing system (100) includes a superposition unit (110) which superposes an image, which is made available by the display unit (105), onto the image of an object region (104). The optical viewing system has a camera unit (111, 113) to which the superposed image of display unit (105) and object region (104) is supplied. The camera unit (111, 113) has image sensors (112, 114) whose light sensitivity is adjustable as a function of time. The light sensitivity of the image sensors (112, 114) is matched to the color pulse sequence in such a manner that the image sensor (112, 114) can detect at least two light pulses of different color from the color pulse sequence from a display segment.
摘要:
The invention is directed to an ophthalmologic surgical microscope system (100) for examining the eye of a patient. The ophthalmologic surgical microscope system includes a surgical microscope (101) as well as a carrier arrangement (102) wherein the surgical microscope (101) is accommodated so as to permit elevation adjustment in order to be able to adjust a work distance between the surgical microscope (101) and the eye of the patient. An ophthalmoscopic ancillary module (103) is connected to the surgical microscope and has an adjustable ophthalmoscopic magnifier system in order to adjust a distance between the ophthalmoscopic magnifier and the surgical microscope (101). The ophthalmologic surgical microscope system (100) has a sensor system for measuring the distance of the surgical microscope (101) from the patient eye. The sensor system is configured as an OCT-measuring device.
摘要:
Disclosed is a microscope system (1) for sequential observation of different fluorescent dyes that are accumulated in a tissue located in an object plane (22). An illumination system (70) of the microscope system (1) for illuminating the object plane (22) with illumination radiation has at least two operating states. In one of the at least two operating states, the illumination radiation has a spectrum which includes an excitation band (A1) of a first fluorescent dye and, at the same time, is partly free from an excitation band (A2) of another fluorescent dye. An observation system (2) of the microscope system (1) for providing a first observation optical path (33) for optically imaging the object plane (22) has two different operating states as well. In one of the at least two operating states observation radiation guided in the first observation optical path (33) has a spectrum in sections of the first observation optical path which includes a first fluorescence band (F1) of the first fluorescent dye, while in at least one other operating state observation radiation guided in the first observation optical path (33) has a spectrum in at least some sections of the first observation optical path which is partly free from the first fluorescence band (F1) of the first fluorescent dye. The disclosed microscope system (1) further comprises a controller (3) which is configured to selectively switch the illumination system (70) as well as the observation system (2) into the first operating state, or to switch the illumination system (70) as well as the observation system (2) into the second operating state.
摘要:
A filter set for observing fluorescent radiation in biological tissue includes at least one illumination filter and at least one observation filter. The at least one illumination filter is arrangeable in an illumination system of an optical system. The at least one least one observation filter is arrangeable in an imaging system of the optical system.
摘要:
The invention is directed to an ophthalmologic surgical microscope system (100) for examining the eye of a patient. The ophthalmologic surgical microscope system includes a surgical microscope (101) as well as a carrier arrangement (102) wherein the surgical microscope (101) is accommodated so as to permit elevation adjustment in order to be able to adjust a work distance between the surgical microscope (101) and the eye of the patient. An ophthalmoscopic ancillary module (103) is connected to the surgical microscope and has an adjustable ophthalmoscopic magnifier system in order to adjust a distance between the ophthalmoscopic magnifier and the surgical microscope (101). The ophthalmologic surgical microscope system (100) has a sensor system for measuring the distance of the surgical microscope (101) from the patient eye. The sensor system is configured as an OCT-measuring device.
摘要:
A dental apparatus uses a white light interferometer (7) and has an emitter (31) for emitting measurement radiation toward a tooth, a receiver (31) for receiving measurement radiation reflected by the tooth, superposition equipment (21) for superposing reference radiation and reflected measurement radiation, and a detector (23) for detecting the superposed radiation and generating an interferometric signal representing the superposed radiation. The emitter (31) and receiver (31) are in the distal end (5) of a dental instrument (1) that can be brought close to the tooth. A control unit (13) causes the white light interferometer (7) to carry out depth scans of the tooth. An analyzer (9) receives the interferometric signal from the detector (23) and determines a distance to the pulp of the tooth from its surface. A warning device (11) is connected to the analyzer (9) and emits a signal when the distance reaches a predetermined minimum distance.
摘要:
A surgical microscope (100) has viewing beams (109a, 109b) passing through a microscope imaging optic which includes a microscope main objective system (101) having a magnification system of variable magnification. The microscope imaging optic transposes a convergent viewing beam (109a, 109b) from the object region (114) into a parallel beam. The surgical microscope includes an OCT-system (120) for examining the object region (114). The OCT-system (120) makes available an OCT-scanning beam (190) which is guided through the microscope imaging optic.
摘要:
A coherence microscope has a divider (3) that divides light emitted by a light source (1) into measurement light, which is supplied to and reflected by a specimen (13), and reference light. A superimposition device (25, 31) superimposes the measurement light reflected by the specimen (13) with the reference light. A short sensor array (41) detects the light resulting from the superimposition and permits a read-out rate of at least about 60 kHz. The superimposition device has an emission device (25, 31) for emitting the measurement light and the reference light arranged to effect extensive irradiation of the sensor array (41) with superimposed light. The ratio of distances covered by the measurement light and the reference light from the emission device (25, 31) to impingement points on the sensor array (41) varies in the portion of the sensor array (41) that is irradiated with superimposed light.