Illumination system and method for a high definition light...

G - Physics – 02 – B

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G02B 21/22 (2006.01) F21V 8/00 (2006.01) G02B 21/06 (2006.01) G02B 21/08 (2006.01) G02B 21/36 (2006.01) G06F 12/12 (2006.01)

Patent

CA 2084408

An illumination system and method for increasing resolution, sharpness, depth of field, and perception of depth for a transmitted light microscope including a condenser lens (12) having an optical axis (13), an objective lens (14) having an optical axis (16), and an eyepiece system (41) wherein a light beam path shift device (23 and 24) enables two or more separate light beams (28 and 32) to be focused onto the condenser lens (12) along paths (28a and 32a) that are not coincident with the condenser lens optical axis (13) and that produce beam exit paths (33 and 34) from the condenser lens (13) which are at maximum oblique angles relative to the optical axis (16) of the objective lens (14).

L'invention est constituée par un système et une méthode d'éclairage servant à accroître la résolution, la netteté, la profondeur de champ et la perception de la profondeur dans un microscope à transmission comportant une lentille de champ collectif (12) ayant un axe optique (13), un objectif 14 ayant un axe optique (16) et un réticule (41) dans lequel un dispositif de décalage de trajets de faisceau lumineux (23 et 24) permet à deux faisceaux lumineux distincts (28 et 32) ou plus d'être focalisés sur la lentille de champ correctif (12) le long de trajets (28a et 32a) qui ne coïncident pas avec l'axe optique (13) de la lentille de champ collectif et qui produisent des trajets de sortie (33 et 34) émanant de la lentille de champ collectif (13) qui sont orientés à des angles maximaux par rapport à l'axe optique (16) de la lentille de champ collectif (14).

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