Patent application number | Description | Published |
20080212623 | Device and method for material processing by means of laser radiation - In a device for material processing by means of laser radiation, said device comprising a source of laser radiation emitting pulsed laser radiation for interaction with the material; optics focusing the pulsed processing laser radiation to a center of interaction in the material; a scanning unit shifting the positions of the center of interaction within the material, wherein each processing laser pulse interacts with the material in a zone surrounding the center of interaction assigned to said laser pulse so that material is separated in the zones of interaction; and a control unit which controls the scanning unit and the source of laser radiation such that a cut surface is produced in the material by sequential arrangement of zones of interaction, it is envisaged that the control unit controls the source of laser radiation and the scanning unit such that adjacent centers of interaction are located at a spatial distance a≦10 μm from each other. | 09-04-2008 |
20080234707 | Contact Glass for Ophthalmic Surgery - In a contact glass for ophthalmic surgery, which comprises a lens body ( | 09-25-2008 |
20080319464 | RE-TREATMENT FOR OPHTHALMIC CORRECTION OF REFRACTION - A planning device generating control data for a treatment apparatus for refraction-correcting ophthalmic surgery is provided, said apparatus using a laser device to separate a corneal volume, which is to be removed for correction, from the surrounding cornea by at least one cut surface in the cornea of an eye, said planning device comprising an interface for receiving corneal data including information on pre-operative cuts which were generated in a previous ophthalmic operation, and computing means for defining a corneal cut surface which confines the corneal volume to be removed, said computing means defining the corneal cut surface on the basis of the corneal data and generating a control dataset for the corneal cut surface for control of the laser device. | 12-25-2008 |
20090036880 | Device and Method for Changing a Lens Implanted Into an Eye - The invention relates to a device for altering an optical and/or mechanical property of a lens that is implanted in an eye, the device including a laser device, which has a laser beam source that provides a pulsed laser beam and an optical unit, which impinges on the implanted lens with the pulsed laser beam. The device also includes a control device, which controls the laser device such that the optical and/or mechanical property of the lens is altered on the basis of non-linear interaction between the laser beam and the lens material. | 02-05-2009 |
20090073382 | Devices and Methods for Defined Orientation of an Eye - The present solution is directed to the orientation of an eye for diagnostic and/or therapeutic purposes, wherein the line of sight need not coincide with the optical axis of the examination apparatus or treatment apparatus. The invention includes a fixating light source for generating a positionable fixating mark, a device for coupling this fixating mark into a beam path of an ophthalmological apparatus whose imaging optics project the fixating mark on the eye to be examined and/or treated, and a control unit by which the image of the fixating mark can be displayed at different distances and angular positions with respect to the optical axis of the ophthalmological apparatus so that the eye to be examined and/or treated is oriented to this fixating mark by foveal focusing and occupies a defined position with respect to the optical axis of the ophthalmological apparatus. | 03-19-2009 |
20100026956 | OPHTHALMIC APPARATUS AND OPHTHALMIC METHOD FOR POSITIONING AN EYE OF A PATIENT IN A PREDETERMINED NOMINAL POSITION - An ophthalmic apparatus including a supporting device for a patient and an eye treatment device. The apparatus includes a contact element for spatially fixing an eye of the patient with respect to the treatment device, and a positioning device for shifting the supporting device and a contact element relative to each other in order to position the eye, before it is fixed using the contact element, at a predetermined nominal position relative to the contact elements. The ophthalmic apparatus includes a detection device, which records an image of the eye of the patient present on the supporting device and, on the basis of said recorded image, determines an indication concerning a relative shift of the supporting device with respect to the contact element, which shift is required to move the eye to the nominal position by means of the positioning device. | 02-04-2010 |
20100087802 | CORNEA TRANSPLANTATION - A planning device generating control data for a treatment apparatus for cornea transplantation using a laser device to separate a corneal volume by at least one cut surface in the cornea and to separate a transplant, from a surrounding transplantation material by at least one cut surface wherein the planning device includes an interface supplying measurement data relating to parameters of the cornea. A computer defines a corneal cut surface which confines the corneal volume to be removed, and determines a transplant cut surface by using the transplantation material data and depending on the defined corneal cut surface. The transplant cut surface confines the transplant, and the computer generates one control data for each cut surface to control the laser, wherein the respective cut surfaces can be produced by the laser to isolate the corneal volume and the transplant and to make them removable. | 04-08-2010 |
20100137849 | MULTIPLE-SPOT LASER REFRACTIVE OPHTHALMIC SURGERY - An apparatus for material processing by laser radiation, including a laser source which emits a processing beam, and a beam path for focusing and scanning, the beam path focusing the processing beam into a processing volume and shifting the position of the focus therein. A beam splitting device generates several foci in the processing volume and the beam splitting device splits the processing beam up into a primary beam and at least one secondary beam and leaves the cross section of the beam in a pupil plane of the beam path unchanged during said division and introduces an angle of separation between the primary and secondary beams, so that these beams expand in the beam path in directions which differ by the angle of separation. | 06-03-2010 |
20110066143 | OPTOMETRIST CLIENT - A method of providing optometric parameters for an optometric procedure includes locating patient identification information on a central data storage by transmitting a search query from a computing device communicating with the central data storage. The search query generates a result set containing at least one patient having patient identification information substantially matching the search query. From the result set, a patient undergoing the optometric procedure is selected. An input form for this patient is then displayed with input fields corresponding to each of the optometric parameters. A qualified collector obtains the measurement values for the optometric parameters and inputs them into respective input fields. A data record containing the measurement values and the patient identification information is generated and transmitted to the central data storage. The data record can then be transmitted to a planning tool communicating with the central data storage for performing the optometric procedure. | 03-17-2011 |
20110102810 | APPARATUS AND METHOD FOR MATERIAL PROCESSING USING A TRANSPARENT CONTACT ELEMENT - A method of preparing an apparatus for material processing by generating optical breakthroughs in an object. The apparatus includes a variable focus adjustment device. A contact element is mounted to the apparatus, the contact element has a curved contact surface having a previously known shape. The position of the contact surface is determined prior to processing the object, by focusing measurement laser radiation near or on the surface by the variable focus adjustment device, and the focus position is adjusted in a measurement surface intersecting the expected position of the contact surface. Radiation from the focus of the measurement laser radiation is confocally detected. The position of points of intersection between the measurement surface and the contact surface is determined from the confocally detected radiation to determine the position of the contact surface from the position of the points of intersection and the previously known shape of the contact surface. | 05-05-2011 |