Five-element optical device

Details Five-element optical device Five-element optical device

G - Physics

02

B

G02B 25/00 (2006.01)

Patent

CA 2614243

An optical device with five air-spaced optical elements. An optical device in the form of an eyepiece is disclosed with a center negative lens and two outer positive lenses on each side of the intermediate negative lens. The eyepiece transmits light from an object to an exit pupil along angles corresponding to the position of a focus point on an object. In a preferred embodiment the positive lenses are identical.

La présente invention concerne un groupe optique à 5 lentilles, en l'occurrence un oculaire à lentille divergente centrale et deux fois deux lentilles convergentes en entrée et sortie. L'oculaire transmet la lumière d'un objet à une pupille selon des angles correspondant à la position d'un point focal sur un objet. Dans un mode de réalisation préféré, les lentilles convergentes sont identiques.

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