摘要:
The invention relates to a dental X-ray system for the creation of a radiograph (13), comprising an imaging unit (5) for surface detection. The imaging unit (5) has a light source (6), which produces a polychromatic beam of visible light (6′), a masking edge (7), which extends at least partially into the polychromatic beam of light (6′) between the light source (6) and the recording area (19) for the purpose of creating a shadow demarcation line (17) in said recording area (19), and an optical detector (8), wherein the light source (6), the masking edge (7) and the optical detector (8) are mounted directly on the supporting device (2) and/or on the X-ray source (3) and/or on the X-ray detector (4) and can be moved together therewith past the recording area (19) in circular motion.
摘要:
The invention relates to a dental X-ray system for the creation of a radiograph (13), comprising an imaging unit (5) for surface detection. The imaging unit (5) has a light source (6), which produces a polychromatic beam of visible light (6′), a masking edge (7), which extends at least partially into the polychromatic beam of light (6′) between the light source (6) and the recording area (19) for the purpose of creating a shadow demarcation line (17) in said recording area (19), and an optical detector (8), wherein the light source (6), the masking edge (7) and the optical detector (8) are mounted directly on the supporting device (2) and/or on the X-ray source (3) and/or on the X-ray detector (4) and can be moved together therewith past the recording area (19) in circular motion.The invention also relates to a method for the creation of a radiograph (13) during an at least partial rotation of a system, wherein concurrently with the rotation of the system by imaging a masking edge (7) a shadow demarcation line (17) is projected into a recording area (19) and is recorded.
摘要:
According to a method for representing information for guiding the flight of an aircraft, the airspace with at least one horizon and the precalculated flight path of the aircraft are three-dimensionally represented by means of an image display device and means for positioning one or several aircraft therein are provided. The aircraft symbols are merged into the representation of the airspace. Preferably, the other aircraft are each represented by a symbol corresponding to their position in the airspace and by at least one line represented in perspective from the point of view of the aircraft concerned.