Center masking add-on illuminator

G - Physics – 02 – B

Patent

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G02B 21/08 (2006.01)

Patent

CA 2204830

Apparatus for masking (center and peripheral) the microscope condenser lens to simultaneously maximize resolution, contrast and depth of field utilizing, at a conjugate plane of the aperture plane where an image of the rear aperture of the condenser lens has been created, a plurality of light sources to illuminate two or more of the faces of a multi-faced mirror in the shape of a pyramid which moves relative to the light sources to vary the amount of center masking continuously over a range including zero while directing multiple oblique beams of light onto the objective lens including such apparatus for connection to the illumination port of a light microscope in place of a standard light source.

Appareil servant à masquer (au centre et en périphérie) une lentille de condenseur de microscope afin de maximiser, simultanément, la résolution, le contraste et la profondeur de champ. Cet appareil effectue cela en utilisant, à un plan conjugué du plan d'ouverture où une image de l'ouverture arrière de la lentille du condenseur a été crée, plusieurs sources de lumière afin d'illuminer deux ou plusieurs faces d'un miroir multi-faces en forme de pyramide. Ce miroir se déplace en lien avec les sources de lumière pour modifier l'ampleur du masquage central de façon continue selon une plage incluant zéro, tout en dirigeant de multiples faisceaux lumineux obliques vers la lentille de l'objectif. L'appareil peut en outre servir à la liaison avec la voie d'éclairement d'un microscope optique au lieu d'une source lumineuse ordinaire.

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