Enhanced electro-active lens system

Details Enhanced electro-active lens system Enhanced electro-active lens system

G - Physics

02

C

G02C 7/02 (2006.01) A61B 3/00 (2006.01) G02B 23/12 (2006.01) G02B 26/00 (2006.01) G02C 11/00 (2006.01) G02F 1/00 (2006.01)

Patent

CA 2535905

A lens system and optical devices that provide enhanced vision correction are disclosed. The lens system includes an electro-active layer that provides correction of at least one higher order aberration. The higher order correction changes dynamically based on a user of the lens system's needs, such as a change by the user's gaze distance, pupil size, or changes in tear film following blinking, among others. Optical devices are also described that use these and other lens systems to provide correction of higher order aberrations. An optical guide is also described that guides the user's line of sight to see through a lens region having a correction for a higher order aberration.

L'invention concerne un système de lentille et des dispositifs optiques permettant d'obtenir une meilleure correction de la vue. Ledit système de lentille comprend une couche électro-active permettant de corriger au moins une aberration d'ordre élevé. La correction d'ordre élevé change de manière dynamique en fonction des besoins de l'utilisateur du système de lentille, par exemple, entre autres, un changement par la distance de fixation ou la taille de la pupille de l'utilisateur, ou des changements du film lacrymal suite aux clignements. L'invention concerne également des dispositifs optiques utilisant ledit système et d'autres systèmes de lentille afin de corriger les aberrations d'ordre élevé. L'invention concerne en outre un guide optique destiné à guider la ligne de vue de l'utilisateur de manière à lui permettre de voir à travers une zone de lentille de correction d'aberrations d'ordre élevé.

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