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US 2008/0278686 A1Published application
Fundus camera
AssigneeLIONS PHOTONICS GmbH & Co.
InventorsAxel Kasper, John Robert Zinter
Life of this patent
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AssigneeLIONS PHOTONICS GmbH & Co.
InventorsAxel Kasper, John Robert Zinter
Estimating the term…
The components of a fundus camera for observing an eye (11)—namely, an illumination device (1) to illuminate an image field of the eyeground (12) and an image recording device (14) onto which the eyeground (12) is projected by means of a projection device (10)—are positioned to be confocal. The illumination device (1) is so structured that a periodic light pattern is created against the eyeground (12) within the illuminated image field. Further, an offset medium is present to offset the pattern by less than one period. The image recording device (14) is connected to an evaluation unit (22) in order to combine at least three recordings illuminated with offset patterns into a single photograph. A single, unstructured, extremely sharply focused photograph of the eyeground (12) may thus be obtained.
Fundus camera for observing an eye, having an illumination device to illuminate an image field of the eyeground that is projected by means of a projection device onto an image recording device, whereby the illumination device and image recording device are positioned to be confocal, the improvement wherein the illumination device is so structured that a periodic light pattern is created against the eyeground within an illuminated image field and is provided with an offset medium to offset the pattern by less than one period, and wherein the image recording device is coupled to an evaluation unit which combines a minimum of three recordings illuminated with offset patterns into one photograph.
Dependencies are inferred from the claim text.