Auto-alignment and auto-focus system and method

Details Auto-alignment and auto-focus system and method Auto-alignment and auto-focus system and method

A - Human Necessities

61

B

A61B 3/00 (2006.01)

Patent

CA 2686446

A patient positioning system for use with a patient comprises an optical image sensor (18). The optical image sensor measures an optical image of a tissue structure of an eye of the patient. An image sensor support supports (14) the image sensor. A patient support (12) supports the patient. A linkage (16) is coupled to the image sensor support with the patient support. A processor (20) is coupled to the optical image sensor to determine a gradient of an illumination level of the optical tissue structure image. The processor is coupled to the linkage and configured to articulate the linkage so as to adjust a separation distance from the tissue structure to the image sensor in response to the gradient of the optical tissue structure image.

L'invention concerne un système de positionnement de patient pour une utilisation avec un patient qui comprend un capteur d'image optique. Le capteur d'image optique mesure une image optique d'une structure de tissu d'un AEil du patient. Un support de capteur d'image supporte le capteur d'image. Un support de patient supporte le patient. Une liaison est couplée au support de capteur d'image avec le support de patient. Un processeur est couplé au capteur d'image optique pour déterminer un gradient d'un niveau d'éclairement de l'image de structure de tissu optique. Le processeur est couplé à la liaison et configuré pour articuler la liaison de manière à ajuster une distance de séparation de la structure de tissu au capteur d'image en réponse au gradient de l'image de structure de tissu optique.

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