Optical lens for observing dark and bright fields in optical microscope, has screen forming units arranged in upstream of light source preventing light rays emitted by source to directly illuminate optical units of central body
The lens has an annular space (10) defined between a central body (2) and an outer body (8), and an optical light source (12) in the form of ring arranged in the annular space between the central body and the outer body. The light source is located in upstream of an annular mirror (22). Screen formi...
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Format | Patent |
Language | English French |
Published |
26.08.2011
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Abstract | The lens has an annular space (10) defined between a central body (2) and an outer body (8), and an optical light source (12) in the form of ring arranged in the annular space between the central body and the outer body. The light source is located in upstream of an annular mirror (22). Screen forming units are arranged in upstream of the light source preventing light rays emitted by the light source to directly illuminate optical units (4, 6) of the central body.
Objectif optique pour l'observation en champ sombre comportant un corps central (2) s'étendant suivant une direction principale (X), ledit corps central (2) étant muni de moyens optiques (4, 6) de collecte des rayons renvoyés par l'objet à observer, un corps extérieur (8) entourant le corps central (2) et s'étendant selon ladite direction principale (X), un espace annulaire (10) délimité entre le corps central (2) et le corps extérieur (8), un miroir (22) à une extrémité du corps extérieur (8), ladite extrémité du corps extérieur (8) étant destinée à être orientée du côté de l'objet. L'objectif comporte en outre des diodes électroluminescentes (14) disposées en forme d'anneau dans l'espace annulaire (10), situées en amont du miroir (22) et de moyens formant écran disposés en amont des diodes (14) empêchant tout rayon lumineux émis par les diodes (14) d'éclairer directement les moyens optiques (4, 6). |
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AbstractList | The lens has an annular space (10) defined between a central body (2) and an outer body (8), and an optical light source (12) in the form of ring arranged in the annular space between the central body and the outer body. The light source is located in upstream of an annular mirror (22). Screen forming units are arranged in upstream of the light source preventing light rays emitted by the light source to directly illuminate optical units (4, 6) of the central body.
Objectif optique pour l'observation en champ sombre comportant un corps central (2) s'étendant suivant une direction principale (X), ledit corps central (2) étant muni de moyens optiques (4, 6) de collecte des rayons renvoyés par l'objet à observer, un corps extérieur (8) entourant le corps central (2) et s'étendant selon ladite direction principale (X), un espace annulaire (10) délimité entre le corps central (2) et le corps extérieur (8), un miroir (22) à une extrémité du corps extérieur (8), ladite extrémité du corps extérieur (8) étant destinée à être orientée du côté de l'objet. L'objectif comporte en outre des diodes électroluminescentes (14) disposées en forme d'anneau dans l'espace annulaire (10), situées en amont du miroir (22) et de moyens formant écran disposés en amont des diodes (14) empêchant tout rayon lumineux émis par les diodes (14) d'éclairer directement les moyens optiques (4, 6). |
Author | DELAMADELEINE ERIC PICARD EMMANUEL |
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Snippet | The lens has an annular space (10) defined between a central body (2) and an outer body (8), and an optical light source (12) in the form of ring arranged in... |
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SubjectTerms | OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
Title | Optical lens for observing dark and bright fields in optical microscope, has screen forming units arranged in upstream of light source preventing light rays emitted by source to directly illuminate optical units of central body |
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