Optical magnifying apparatus

G - Physics – 02 – B

Patent

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Details

G02B 27/02 (2006.01) G02B 21/22 (2006.01) G02B 27/22 (2006.01)

Patent

CA 2120146

Optical magnifying apparatus comprises an objective lens (11) from which light is directed to a beam splitting mirror (12). A portion of the light passes through the beam splitting mirror to a first concave mirror (13) and is reflected back via the beam splitting mirror through a viewing lens (5) to a first eye (16) of an observer. The remainder of the light is reflected by the beam splitting mirror to a second concave mirror (17) from which it is reflected back via the beam splitting mirror through the viewing lens to a second eye (19) of the observer. Focussed first and second images (14, 18) of an object (10) are produced respectively on the surfaces of the first and second concave mirrors. The optical axes of the concave mirrors are relatively offset such that the relayed pupils of the mirrors are separated horizontally by a distance approximately equal to the average interpupilary spacing of an observer. The relative inclination of the optical axes of the concave mirrors may be adjustable to enable non-stereoscopic or stereoscopic images of the object to be observed.

Appareil de grossissement optique comprenant un objectif (11), qui dirige la lumière sur un miroir de dédoublement de faisceau (12). Une portion de la lumière passe dans le miroir de dédoublement pour atteindre un premier miroir concave (13) qui redirige le faisceau lumineux via le miroir de dédoublement dans un oculaire (5) où il atteint un des yeux (16) d'un observateur. Le reste de la lumière est réfléchi par le miroir de dédoublement en direction d'un deuxième miroir concave (17), qui redirige le faisceau lumineux via le miroir de dédoublement dans l'oculaire où il atteint l'autre oeil (19) de l'observateur. Les première et deuxième images focalisées (14, 18) d'un objet (10) sont produites respectivement sur les surfaces de deux miroirs concaves. Les axes optiques des miroirs concaves sont relativement décalés, de sorte que les pupilles relayées des miroirs sont séparées horizontalement par une distance approximativement équivalente à l'écart interpupillaire moyen d'un observateur. L'inclinaison relative des axes optiques des miroirs concaves s'ajuste afin de permettre l'observation stéréoscopique ou non d'un objet.

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