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1. (US20100045927) Ophthalmic lens incorporating an optical insert for projecting information
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Claims

1. An eyesight correcting lens comprising:
a front face and a rear face, and into which light beams emitted by a light beam generator system are introduced via an inlet surface and directed towards the eye of an ametropic wearer of said lens to enable information content to be viewed; and
an optical insert being included in the lens, wherein the lens is arranged so as to enable the wearer of said lens to provide an accommodation effort that is less than or equal to 2D when viewing the information content.
2. A lens according to claim 1, for a short-sighted wearer, wherein the lens is arranged in such a manner that the power of the front face ( 2) of the lens lies in the range 0D to +3D, the additional power needed for the lens for correcting the vision of said wearer being provided by the rear face ( 3) of the lens.
3. A lens according to claim 2, wherein the power of the front face of the lens is equal to +1D.
4. A lens according to claim 1, for a long-sighted wearer, wherein the is arranged in such a manner that the power of the rear face of the lens lies in the range −1.25D to 0 D, the additional power needed by the lens for correcting the vision of said wearer being provided by the front face of the lens.
5. A lens according to claim 4, wherein the power of the rear face of the lens is equal to −0.25D.
6. A lens according to claim 1, wherein the lens includes at least one correction element situated between the optical insert and the eye of the wearer.
7. A lens according to claim 6, wherein the correction element further comprises an element that increases the depth of field.
8. A lens according to claim 6, wherein the lens further comprises:
a first correction element situated between the optical insert and the eye of the wearer; and
a second correction element situated between the optical insert and the information content, the power of said second correction element being equal to the opposite of the power of said first correction element.
9. A lens according to claim 8, wherein at least one of its correction elements further comprises a patch.
10. A lens according to claim 9, wherein at least one patch is of the diffractive type.
11. A lens according to claim 9, wherein at least one patch is of the GRIN type.
12. A lens according to claim 9, wherein at least one patch is disposed on at least one of the two faces of the lens.
13. A lens according to claim 9, wherein a first patch and a second patch are disposed respectively on the rear face and the front face of the lens, the power of the second patch being equal to the opposite of the power of the first patch.
14. A lens according to claim 9, wherein at least one patch is placed at least in part on at least one of the plane and parallel faces of the optical insert.
15. A lens according to claim 9, wherein a first patch and a second patch are placed at least in part respectively on the face of the optical insert that is directly in the proximity of the rear face of the lens, and on the face of the optical insert that is directly in the proximity of the front face of the lens, the power of the second patch being equal to the opposite of the power of the first patch.
16. A lens according to claim 8, wherein at least one of the correction elements further comprises an area of machining on at least one of the two faces of the lens.
17. A lens according to claim 16, wherein first and second areas of machining are provided respectively on the rear face and the front face of the lens, the power of said second area of machining being equal to the opposite of the power of said first area of machining.
18. A lens according to claim 1, wherein the lenses constituting said light beam generator system are substantially stationary relative to one another.