Abstract:
The invention relates to an optical measuring system comprising a wave front sensor for characterizing a shape of a wave front of measuring light and an imaging lens, wherein the imaging lens comprises a first optical assembly and a second optical assembly for imaging an object region in an entrance region of the wave front sensor. A distance between the object region and the first optical assembly is larger than a focal length of the first optical assembly. Furthermore, the optical measuring system can comprise an optical microscopy system and optionally an OCT system for carrying out different optical examination methods at the same time.
Abstract:
Ein optisches Messsystem mit einem Wellenfrontsensor zum Charakterisieren einer Form einer Wellenfront von Messlicht und einer Abbildungsoptik ist bereitgestellt, wobei die Abbildungsoptik eine erste Optikbaugruppe und eine zweite Optikbaugruppe zum Abbilden eines Objektbereichs in einen Eintrittsbereich des Wellenfrontsensors umfasst. Ein Abstand d zwischen dem Objektbereich und der ersten Optikbaugruppe ist dabei größer als eine Brennweite der ersten Optikbaugruppe. Weiter kann das optische Messsystem ein optisches Mikroskopiesystem sowie optional ein OCT-System umfassen zum gleichzeitigen Durchführen verschiedener optischen Untersuchungsmethoden.
Abstract:
[0056] An improved diagnostic ophthalmic lens using extra-low dispersion material, defined by having an Abbe Number, V d >80, is provided. Such a single element diagnostic ophthalmic lens may be used for examination of the eye in conjunction with either an Indirect Ophthalmoscope or a Slit Lamp Biornicroscope.
Abstract:
The invention relates to a device for the three-dimensional representing of an operative field, especially of an eye, during laser operations. The inventive device comprises a three-dimensional recording system (10), an image processing system (15) and a three-dimensional display unit (20).
Abstract:
An ophthalmoscope (800) includes a lens (802) and an eyepiece (801) by which an optometrist, ophthalmologist or general medical practitioner can examine the interior of a patient's eye. The ophthalmoscope includes a handle (803) within which there is situated a printer to provide an instantaneous permanent record of an image as viewed. Upon activation of a trigger (817), a permanent graphic image is printed onto a sheet (816) that passes out of the handle (803) via slot (804).
Abstract:
The invention is an eye viewing device having a module holder formed at an observer end thereof. Replaceably received in the holder is a viewing module. The viewing module may comprise eyepiece optics, image signal generating elements, or combined eyepiece and image signal generating elements.
Abstract:
The invention is an eye viewing device having a module holder formed at an observer end thereof. Replaceably received in the holder is a viewing module. The viewing module may comprise eyepiece optics, image signal generating elements, or combined eyepiece and image signal generating elements.
Abstract:
An ophthalmoscope attachment (10) comprising a mask (22) and mounting means (36) to help focus an individual's direction of sight toward an eyepiece (32) in a housing (18) at a front of an ophthalmoscope (12). The mask (22) is secured to the front (20) of the housing (18) of the ophthalmoscope (12) by the mounting means (36). The mask (22) is placed across the front of the ophthalmoscope (12) so that it does not interfere with the eyepiece (32) of the ophthalmoscope (12) when the mask (22) is secured across the front (20) of the housing (18).
Abstract:
The present invention relates to a binocular indirect ophthalmoscope for observing and examining the fundus of the human eye. The ophthalmoscope of the invention integrates an electro-optic imaging system in the viewing optics of the ophthalmoscope. Advantageously, such integration permits the stereoscopic observation of the retina and choroid by employing radiation ranging from the near ultraviolet to the infrared, including the visible spectrum. A light source illuminates a desired portion of a patient's fundus and the radiation reflected in response to the illuminating radiation is brought to focus to produce an aerial image of the fundus. A pair of ophthalmoscope lenses then magnify and image the aerial image along two different optical paths onto imaging sensors, such as charge coupled devices (CCDs) and image cameras, or image tubes such as image intensifiers. Visible displays, such as liquid crystal displays (LCDs), cathode ray tubes (CRTs), or the fluorescent screen of the image tube, then photoelectrically convert the fundus images formed on the imaging sensors and direct corresponding visible images thereof to an observer's pupils by means of ocular lenses.
Abstract:
An ophthalmic microscope assembly has an ophthalmic microscope (2) with a camera (12), a voice recorder (4) with speech-to-text conversion, a measurement unit (68) for carrying out measurements, and a report generator (20) for generating reports. Depending on the physical input, such as the voice data (18) from the voice recorder (4), the image data (14) from the camera (12), the data measured by the measurement unit (68), as well as the current operating settings of the microscope (2), report generator (20) automatically generates a report. Depending on the same data, a guide (94) automatically generates guidance to the user and/or performs measurements and takes images. A microphone (16) is placed below the ocular (32) or on the frame of a display (52) of the microscope (2)