Ophthalmic display comprising an ophthalmic lens and an optical imager
View Patent ↗The invention relates to an ophthalmic display comprising an ophthalmic lens containing an optical imager insert ( 400 ) presenting a direction of polarization and serving to shape light beams and direct them towards the eye of the wearer to enable information content (I) to be viewed, the display also comprising at least one polarizer element for placing on a face of the lens. According to the invention, said polarizer element is constituted by an element ( 2 A, 2 B) having adjustable polarization.
1. An ophthalmic display comprising:
an ophthalmic lens containing an optical imager insert presenting a direction of polarization and serving to shape light beams delivered by a miniature screen and direct them towards the eye of the wearer to enable virtual information content to be viewed, the display also having at least one polarizer element for placing on a face of the lens, wherein said polarizer element is constituted by an element having adjustable polarization, in order to enable proper contrast to be conserved in the virtual image, when the display is used for view of said virtual information content, and to hide said imager insert, when the display is used for correction of the eyesight of the wearer.
2. A display according to claim 1 , wherein said polarizer element presents polarization perpendicular to that of the insert.
3. A display according to claim 1 , wherein said polarizer element presents polarization parallel to that of the insert.
4. A display according to claim 1 , wherein said polarizer element further comprises an active film based on chiral molecules presenting polarization rotation of adjustable magnitude.
5. A display according to claim 4 , wherein said active film is pixellized, each pixel being subjected individually to an electrical signal.