Reflecting microscope device

G - Physics – 02 – B

Patent

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Details

G02B 21/22 (2006.01) G02B 21/00 (2006.01) G02B 21/06 (2006.01) G02B 21/36 (2006.01) G02B 27/00 (2006.01) G02B 27/22 (2006.01) G02B 27/46 (2006.01)

Patent

CA 2211152

A microscope having a high effective numerical aperture is achieved in an apparatus in which a real, three-dimensional image is formed of an object (E) placed in an aperture (20a) at the apex of one of two facing, axially-aligned concave mirrors (20, 10). The three-dimensional image is acquired by a video camera (50) positioned in a counterpart aperture (10a) at the apex of the other mirror and the acquired image is processed by computer (101). The processing corrects the acquired image using a point spread function of the mirror system which was previously obtained by positioning a point source of light throughout the object space and measuring the pixel values recorded by the camera's array of sensing elements while the camera was positioned at different axial distances in the image plane.

On crée un microscope, dont l'ouverture numérique présente une efficacité élevée, au moyen d'un dispositif dans lequel on obtient une image réelle tridimensionnelle d'un objet (E) placé dans une ouverture (20a) au niveau du sommet de l'un de deux miroirs concaves opposés et alignés axialement (20, 10). Cette image tridimensionnelle est acquise par une caméra vidéo (50) positionnée dans une contre-ouverture (10a) au niveau du sommet de l'autre miroir et l'image acquise est traitée par ordinateur (101). Le traitement corrige l'image acquise au moyen d'une réponse impulsionnelle du système de miroirs obtenue précédemment en positionnant une source ponctuelle de lumière à travers l'espace de l'objet et en mesurant les valeurs de pixel enregistrées par l'ensemble d'éléments de détection de la caméra, tandis que la caméra était placée à différentes distances axiales dans le plan de l'image.

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