Actively controllable multifocal lens

G - Physics – 02 – B

Patent

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Details

G02B 7/04 (2006.01) G02B 3/10 (2006.01) G02B 5/32 (2006.01) G02C 7/00 (2006.01) G02C 7/04 (2006.01) G02C 7/06 (2006.01)

Patent

CA 2315377

The invention provides an active multifocal optical lens. The optical lens has a first optical element that provides a first optical power and a second optical element that provides a second optical power. The second optical element is a volume holographic optical element, which has been programmed to focus incoming light. The invention provides further a cross-linkable or polymerizable optical material that is suitable for producing a biocompatible holographic optical element. The optical material is a rapidly cross-linking or polymerizing material that changes from a fluid state to a solid state within a limited duration after being exposed to a light source.

Cette invention se rapporte à une lentille optique multifocale active, qui comprend un premier élément optique fournissant une première puissance optique et un second élément optique fournissant une seconde puissance optique. Le second élément optique est un élément optique holographique occupant un volume, qui a été programmé pour focaliser la lumière incidente. Cette invention présente également une matière optique réticulable ou polymérisable qui est apte à produire un élément optique holographique biocompatible. Cette matière optique est constituée par une matière se réticulant ou se polymérisant rapidement, qui passe d'un état fluide à un état solide en un temps limité après avoir été exposée à une source lumineuse.

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