摘要:
Device for determining the properties of surfaces having at least one first radiation means having at least one first radiation source which directs a predetermined radiation towards a measurement surface; at least one first radiation detector means which captures at least a portion of the radiation reflected and/or diffused off the measurement surface and emits at least one measurement signal which is characteristic of the reflected and/or diffused radiation, wherein at least one second radiation means is provided which directs at least partially directional radiation at a predetermined angle towards the measurement surface, and at least one second radiation detector means having a predetermined radiation detector surface, which at least partially captures the radiation emitting from the second radiation means and reflected off the measurement surface, and determines its position on the detector surface.
摘要:
An endoscopic system includes at least one endoscope having an objective which generates an image of an area to be observed, at least one video recorder which records the image generated by the objective, at least one instrument, a position-sensing device which detects a position of the at least one instruments, and an assessment and control unit to which an output signal of the video recorder and the position-sensing device are applied and which displays on a monitor the image and symbols representing the position of the instrument. The position-sensing device includes a sensor which also detects orientation of the instrument, and the assessment and control unit displays symbols which indicate, in addition to the position the orientation of the instrument.
摘要:
A laryngoscope includes a handle, a spatula arranged substantially transverse to the handle, and a coupling detachably fixing the spatula to the handle. An illumination light waveguide guides an illumination light signal and an image waveguide guides an image signal, both waveguides being attached to the spatula. The illumination light waveguide includes a proximal end having an illumination light entry opening, and the image waveguide includes a proximal end having an image exit opening, wherein the illumination light entry opening and the image exit opening are arranged in the area of the coupling. The handle includes, in the area of the coupling, an illumination light exit opening and an image entry opening which allow for the illumination light signal to couple into the illumination light waveguide from the handle, and for the image signal to couple out of the image waveguide. A centering element automatically aligns the image entry opening and the image exit opening precisely to each other.
摘要:
The present invention describes a device for intracorporal, minimal-invasive treatment of a patient, comprising a working instrument that can be introduced into a body cavity of the patient for carrying out a treatment step, wherein a distal end of the introduced working instrument defines an intracorporal working area, and at least one image pick-up unit for picking up an image of the intracorporal working area, further comprising positioning means for orienting an optical axis of the image pick-up unit in dependency on a spatial position of the intracorporal working area, wherein the positioning means comprise a guide shaft, in which the working instrument is guided, and wherein the image pick-up unit is pivotably fixed at an intracorporal portion of the guide shaft. The positioning means have a holder pivotably fixed to the intracorporal portion of the guide shaft, the image pick-up unit being arranged at the holder in a distance from a location where the holder is linked to the guide shaft, such that the image pick-up unit is intracorporally pivotable into a working position, in which the optical axis runs angularly to a longitudinal center axis of the guide shaft and points to the longitudinal center axis.
摘要:
A fiber optic light guide for a measurement or illumination system is described, in which an inside space left free in a fiber optic light guide unit is bounded laterally by a closed wall formed by the fiber optic light guide unit.
摘要:
The invention provides a device for measuring characteristic quantities of an at least partially transparent sample, comprising: an illumination component including a light source (1) which emits light in a predetermined wavelength range and which is arranged such within this illumination component that the light substantially propagates along a predetermined optical axis, a sample reception space provided between this illumination component and a measuring component and arranged such with respect to this optical axis that the light which emerges from the light source first passes a sample located within that sample reception space and then enters this measuring means, a measuring component including a substantially closed measuring space having an opening through which this optical axis extends and through which the light enters after having passed the sample, and which also includes a photodetector component (2) being sensitive at least within this predetermined wavelength range, including at least two detectors, namely a first detector (4) arranged in the optical axis (3) of the illumination component and a second detector (5) arranged in a predetermined radial distance from this optical axis.
摘要:
Radiation is irradiated by an irradiation device at a pre-set angle of incidence with respect to the surface onto the surface to be investigated, and the radiation scattered and/or reflected by this surface arrives at a radiation detector device arranged at a pre-set detection angle with respect to the surface and having an image-recording unit which records black-and-white images, wherein this radiation detector device permits a spatially resolved detection of the radiation reaching it. The irradiation device directs radiation in a first wavelength range onto the surface and the image-recording unit records a first spatially resolved image of this radiation scattered and/or reflected from the surface and the irradiation device directs radiation in a second wavelength range onto the surface and the image-recording unit records a second spatially resolved image of this radiation scattered and/or reflected from the surface.
摘要:
A lanyard plug includes a head having a “T” shaped cross section with a top portion supported by a beam portion. The head is adapted to be retentively coupled in a groove of a device. A body is coupled to the beam portion of the head. A spring loaded pin is supported in a cavity of the body and extends through the top portion of the head.
摘要:
Endoscopic arrangement comprising a first distal end, an imaging device arranged at the first distal end, a first proximal end for connection to a supply unit, a data transmission element embodied as a light guide and having a second distal end and a second proximal end, and comprising an electro-optical converter, wherein the electro-optical converter is configured to convert digital data generated by the imaging device into an optical signal, wherein the data transmission element at its second distal end is optically coupled to the electro-optical converter for coupling the optical signal into the data transmission element, wherein the imaging device comprises at least two data outputs each having a digital output signal, and wherein a first signal converter is provided between the imaging device and the electro-optical converter for combining the digital output signals into a digital combined output signal.
摘要:
An apparatus for measuring optical properties of transparent materials with a first illumination device which illuminates the material to be investigated along a pre-set illumination path with a pre-set radiation, with a radiation recording space which records radiation passed on by the material to be investigated. The radiation recording space is arranged so that radiation emitted by the first illumination device first strikes the material and then at least for a time an inner wall of the radiation recording space. A radiation detector device is arranged to record radiation reflected and/or scattered essentially only from the inner wall. A second illumination device suitable for emitting modulated radiation also illuminates the inner wall.