Abstract: This invention is related to a method for determining the storage quality of an X-ray imaging plate, including the steps of: providing a plurality of digital X-ray images of the imaging plate; performing a cross-correlation operation on the X-ray images for relevant image regions; creating feature images from the correlation values; classifying the functionality of a pixel of a feature image based on the number of pixels in the vicinity of the pixel whose correlation value exceeds a correlation threshold. Further, the invention also relates to an apparatus.

Abstract: A device and method for reading an exposed imaging plate generate read-out light and utilize a deflection unit to direct the read-out light in a scanning movement over the imaging plate. The deflection unit has a micromirror to deflect impinging read-out light towards the imaging plate. The micromirror can swivel about a first swivel axis and about a second swivel axis distinct from the first. A detector unit detects fluorescent light emitted from the imaging plate at locations where the read-out light impinges. An evaluating unit evaluates signals received from the detector unit and builds up an image that is stored in the imaging plate. The evaluating unit takes into account, when evaluating the signals received from the detector unit, that points on the imaging plate are subjected to the read-out light variably often and/or for variable time lengths while the micromirror oscillates about the first and the second swivel axis.

Abstract: A device and method for reading an exposed imaging plate generate read-out light and utilize a deflection unit to direct the read-out light in a scanning movement over the imaging plate. The deflection unit has a micromirror to deflect impinging read-out light towards the imaging plate. The micromirror can swivel about a first swivel axis and about a second swivel axis distinct from the first. A detector unit detects fluorescent light emitted from the imaging plate at locations where the read-out light impinges. An evaluating unit evaluates signals received from the detector unit and builds up an image that is stored in the imaging plate. The evaluating unit takes into account, when evaluating the signals received from the detector unit, that points on the imaging plate are subjected to the read-out light variably often and/or for variable time lengths while the micromirror oscillates about the first and the second swivel axis.

Abstract: A device and method for reading an exposed imaging plate generate read-out light and utilize a deflection unit to direct the read-out light in a scanning movement over the imaging plate. The deflection unit has a micromirror to deflect impinging read-out light towards the imaging plate. The micromirror can swivel about a first swivel axis and about a second swivel axis distinct from the first. A detector unit detects fluorescent light emitted from the imaging plate at locations where the read-out light impinges. An evaluating unit evaluates signals received from the detector unit and builds up an image that is stored in the imaging plate. The evaluating unit takes into account, when evaluating the signals received from the detector unit, that points on the imaging plate are subjected to the read-out light variably often and/or for variable time lengths while the micromirror oscillates about the first and the second swivel axis.

Abstract: A device and method for reading an exposed imaging plate generate read-out light and utilize a deflection unit to direct the read-out light in a scanning movement over the imaging plate. The deflection unit has a micromirror to deflect impinging read-out light towards the imaging plate. The micromirror can swivel about a first swivel axis and about a second swivel axis distinct from the first. A detector unit detects fluorescent light emitted from the imaging plate at locations where the read-out light impinges. An evaluating unit evaluates signals received from the detector unit and builds up an image that is stored in the imaging plate. The evaluating unit takes into account, when evaluating the signals received from the detector unit, that points on the imaging plate are subjected to the read-out light variably often and/or for variable time lengths while the micromirror oscillates about the first and the second swivel axis.

Abstract: A device configured to read an exposed imaging plate, comprises a light-source that generates read-out light. A deflection unit directs the read-out light in a scanning movement over the imaging plate. The deflection unit comprises a micromirror that deflects impinging read-out light towards the imaging plate. The micromirror swivels about a first swivel axis and about a different second swivel axis. The micromirror oscillates with a first frequency about the first swivel axis and simultaneously with a different second frequency about the second swivel axis. A detector unit detects fluorescent light which is emitted from the imaging plate at locations where the read-out light impinges.

Abstract: A dental camera system for creating an image of an object has a dental camera, which comprises a housing and optics arranged therein together with an image sensor. The dental camera system further comprises an evaluation unit which cooperates with the image sensor to capture the object. To achieve a dental camera system whereof the dental camera performs using optics without movable or controllable optical elements, it is provided for the optics to be plenoptic optics which are designed to determine a 4D light field when capturing the object and for the evaluation unit to be designed to calculate at least one representation of the captured object from the 4D light field.

Abstract: A dental camera system for creating an image of an object has a dental camera, which comprises a housing and optics arranged therein together with an image sensor. The dental camera system further comprises an evaluation unit which cooperates with the image sensor to capture the object. To achieve a dental camera system whereof the dental camera performs using optics without movable or controllable optical elements, it is provided for the optics to be plenoptic optics which are designed to determine a 4D light field when capturing the object and for the evaluation unit to be designed to calculate at least one representation of the captured object from the 4D light field.

Abstract: A device configured to read an exposed imaging plate, comprises a light-source that generates read-out light. A deflection unit directs the read-out light in a scanning movement over the imaging plate. The deflection unit comprises a micromirror that deflects impinging read-out light towards the imaging plate. The micromirror swivels about a first swivel axis and about a different second swivel axis. The micromirror oscillates with a first frequency about the first swivel axis and simultaneously with a different second frequency about the second swivel axis. A detector unit detects fluorescent light which is emitted from the imaging plate at locations where the read-out light impinges.

Abstract: In a dental device for the investigation of the optical properties of tooth tissue, in particular for the recognition of caries, plaque, bacterial infection, concretions and tartar, having a generator for generating an excitation radiation, which is to be directed onto a tooth tissue region to be investigated, a radiation detector and a radiation evaluator for the detection and evaluation of a response radiation arising from the irradiated tooth tissue region as response to the irradiation, and an indicator means for the indication of a measurement result determined by the evaluation means on the basis of the detected response radiation, the excitation radiation generator, the radiation detector and at least also the indicator being integrated in a dental handpiece.

Abstract: A dental X-ray system includes a radiation source used to produce X-rays and disposed in an X-ray head. The system has an electronic sensor used to detect X-rays. The sensor can be detachably connected to a central unit of the X-ray system by a plug-in connection. The electronic control system for the sensor is integrated into a plug connected thereto by an external connection cable and is associated with the sensor, thereby enabling a simple exchange between two sensors. The system can include several sensors that can be operated parallel to each other.

Abstract: An X-ray apparatus, in particular a dental X-ray apparatus, includes an X-ray radiation source for generating X-ray radiation to be directed at an object to be investigated, for example, a patient's tooth or jaw. The apparatus has an optical device through which an aiming device, for example, an additional visible pilot radiation generated by a further light source, is directed substantially parallel to the X-ray radiation at the object to be investigated to facilitate the positioning of the X-ray head.

Abstract: An intraoral sensor for a dental X-ray apparatus includes a detection element for detecting the X-ray radiation. The element is disposed in an interior of a housing. To improve the possibilities for cleaning and sterilizing, the housing or parts thereof are of an abrasion resistant material, in particular, of porcelain, ceramic, an enamelling, metal, or of a combination of these materials. To avoid damage to the detection element through external impacts or jarring, the element is mounted within the housing through one or more damping elements.

Abstract: An X-ray apparatus, in particular a dental X-ray apparatus, includes an X-ray radiation source for generating X-ray radiation to be directed at an object to be investigated, for example, a patient's tooth or jaw. The apparatus has an optical device through which an aiming device, for example, an additional visible pilot radiation generated by a further light source, is directed substantially parallel to the X-ray radiation at the object to be investigated to facilitate the positioning of the X-ray head.

Abstract: A dental X-ray system includes a radiation source used to produce X-rays and disposed in an X-ray head. The system has an electronic sensor used to detect X-rays. The sensor can be detachably connected to a central unit of the X-ray system by a plug-in connection. The electronic control system for the sensor is integrated into a plug connected thereto by an external connection cable and is associated with the sensor, thereby enabling a simple exchange between two sensors. The system can include several sensors that can be operated parallel to each other.

Abstract: An intraoral sensor for a dental X-ray apparatus includes a detection element for detecting the X-ray radiation. The element is disposed in an interior of a housing. To improve the possibilities for cleaning and sterilizing, the housing or parts thereof are of an abrasion resistant material, in particular, of porcelain, ceramic, an enamelling, metal, or of a combination of these materials. To avoid damage to the detection element through external impacts or jarring, the element is mounted within the housing through one or more damping elements.

Abstract: A calibrator is provided for carrying out a calibration of an investigation device, which has means for the generation of an excitation radiation, which is to be directed at a tooth tissue region to be investigated, a radiation detector and radiation evaluation for the detection and evaluation of a response radiation arising from the irradiated tooth tissue region in response to the irradiation, and a radiation transmission for the transmission of the excitation radiation and the response radiation, which includes at least a diagnosis probe for directing the excitation radiation at the tooth tissue region to be investigated and for detecting the response radiation, has a reference element, which for carrying out a calibration of the investigation device is to be irradiated by this device via the diagnosis probe. In accordance with the invention the calibrator has a repository via which the diagnosis probe is held in a defined position and/or orientation with regard to the reference element.

Abstract: In a dental device for the investigation of the optical properties of tooth tissue, in particular for the recognition of caries, plaque, bacterial infection, concretions and tartar, having a generator for generating an excitation radiation, which is to be directed onto a tooth tissue region to be investigated, a radiation detector and a radiation evaluator for the detection and evaluation of a response radiation arising from the irradiated tooth tissue region as response to the irradiation, and an indicator means for the indication of a measurement result determined by the evaluation means on the basis of the detected response radiation, the excitation radiation generator, the radiation detector and at least also the indicator being integrated in a dental handpiece.

Abstract: Pulsed light source for the removal of biological tissue. The pulsed light source incorporates light means as well as a controller which controls the light means in such a way that the light means generate on the one hand ablation pulses (BA) with an irradiancy sufficient for the ablation of tissue and on the other hand a coagulation radiation (BK) with an irradiance sufficient simply for a heating of tissue, but not for an ablation of tissue. The controller controls the light means in such a way that the light means generate the coagulation radiation (BK) independently in time of the ablation pulses (BA).