G. Rodenstock Instrumente Gmbh

Candela Laser Corporation

G. Rodenstock Instruments Gmbh

Vorrichtung Zur Fesichtsfeldprufung

Ulrich Klingbeil

Andreas Plesch

Werner Reis

Karl-Heinz Wilms

Manfred Feuerstein

Adolf Triller

Werner Bisle

Robert Schlier

Claus H Kuhl

Joseph Canter

Herbert Langosch

Michael Lesiecki

Wolfgang Eisentr&auml;ger

Mark Furlong

An apparatus for the observation and treatment of the eye with a laser, having an illumination light source, whose light is focussed on the part of the eye to be observed and which preferably contains a laser, a scanning device, which generates a scanning movement of the light of the illumination light source on the background of the eye, a detector device, which receives the reflected light, an evaluation and synchronization unit, which generates from the time-sequential signal output of the detector device a visual representation of the portions of the eye to be treated and shows the visual representation, on a monitor, and a treatment laser device, whose light can be reflected on the part of the eye to be treated. The apparatus provides that a visual representation in which the location or locations to be treated are marked, can be superimposed on the visual representation of the eye at least on the monitor, and a control unit aligns the laser to the marked location.

Apparatus for the observation and the treatment of the eye using a laser

Disclosed is an apparatus for aligning a focused beam of light and, in particular, a laser beam onto a surface using optical elements which image, respectively shape, deflect and align the beam of light. The present invention is distinguished by a deflecting optical element having, in addition, a focusing effect.

Apparatus for aligning a focused beam of light

Disclosed is an apparatus for examining objects having an illumination light source, the light of which can be focussed on the part of the object to be examined, a scanning device, which generates a scanning movement of the light beam from the illumination light source over the section to be examined and which is provided with beam-deflecting and beam-imaging optical elements, a sensor device, which receives the light reflected from said section to be examined, and an evaluation and synchronization unit, which produces an image of said section to be examined from the time-sequential output signal from said sensor device. The invented apparatus is distinguished by the fact that the optical axis of the examination and/or illumination beam can be shifted in a plane of said pupils in order to generate a stereoscopic image, and that the images produced with varying positions of the optical axes can be overlapped in order to produce a stereo image.

Apparatus for the examination of objects and the determination of

An infrared fundus angiography camera and ICG angiography imaging procedure for improved visualization and diagnosis of vascular diseases of the eye, especially SRNV, features a narrow bandwidth non-coherent and decollimated infrared illumination source, an optical system for directing the infrared illumination onto the retina and for directing the resulting retinal image toward an image storage device, and an optical filter positioned between the retina and the image storage device for blocking the infrared illumination from entering the image storage device. An infrared laser produces infrared illumination and a opal glass, fiber array, or integrating sphere light diffuser positioned between the infrared laser and the optical system decollimates and makes the infrared illumination incoherent. The laser includes a temperature stabilized infrared laser diode having an output matched to the excitation peak of an infrared fluorescent dye, such as ICG. The fundus camera includes an optical filter in the emission image path having a sharp cut-off response matched to the excitation and emission peaks of the infrared dye so that the filter substantially passes emission peak wavelengths and substantially blocks excitation peak wavelengths.

Infrared fundus video angiography system

An apparatus for producing an image of an object and, in particular, for examining the eye, having an illumination light source, the light of which can be focussed onto the section of the object to be examined, a scanning device, which generates a scanning movement of the source of the illumination light over the section to be examined and which is provided with beam-deflecting and image-forming optical elements, a detector device, which receives the light reflected from the section to be examined, and an evaluation and sychronization unit, which produces an image of the selected structures of the object from the time-sequential output signal from the detector device at least two image forming optical elements, which can be interchanged in order to alter the horizontal deflection angle, or image magnification in the horizontal direction, are provided in the beam path between the beam-deflecting elements.

Apparatus for producing the image of an object

Disclosed is an apparatus for examining the field of vision, having a scanning device, which is provided with beam deflecting and beam imaging elements, via which the illumination light beam from an illumination light source is guided onto the region of the fundus oculi to be imaged and, if need be, the light reflected from the fundus oculi is guided to a detector device, from the time-sequential output signal of which an evaluation and synchronization unit generates an image of the scanned section by points, and having a control unit, which controls the intensity of the illumination light beam scanning the fundus oculi in such a manner that marks, respectively patterns, are projected onto a predeterminable region of the fundus oculi with predeterminable brightness, which the person under examination perceives, respectively does not perceive in the event of defects in the field of vision. The present invention is distinguished by the fact that in order to set a specific value of brightness of the marks, respectively of the patterns, the control unit switches the illumination light beam within the time span, during which the illumination light beam illuminates a scanning point, from a first intensity value to at least a second intensity value for a specific fraction of this time span.

Apparatus for examining the field of vision

Apparatus for producing images of an object and in particular for

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Munchen, Germany

Ulrich Klingbeil