Eyeglass manufacturing method using variable index layer
View Patent ↗An eyeglass manufacturing method using epoxy aberrator includes two lenses with a variable index material, such as epoxy, sandwiched in between. The epoxy is then cured to different indexes of refraction that provide precise corrections for the patient's wavefront aberrations. The present invention further provides a method to produce an eyeglass that corrects higher order aberrations, such as those that occur when retinal tissue is damaged due to glaucoma or macular degeneration. The manufacturing method allows for many different applications including, but not limited to, supervision and transition lenses.
1. An eyeglass lens, comprising:
a first layer comprising a first lens having a constant index of refraction; and
a second layer comprising a material having a varying index of refraction; and
a third layer comprising a second lens, the second layer being sandwiched between the first layer and the third layer;
the second layer comprising a plurality of vision zones, each vision zone being configured to correct at least part of a plurality of different aberrations of the patient's eye; and
the second layer further comprising at least one transition zone configured to provide a smooth transition between at least two of the plurality of zones.
2. The eyeglass lens of claim 1 in which the plurality of vision zones comprises at least a first vision zone and a second vision zone, each of the first vision zone and the second vision zone being independently selected from the group consisting of
a vision zone configured to correct at least part of a low order aberration,
a vision zone configured to correct at least part of a high order aberration,
a vision zone configured to correct at least part of a far vision aberration, and
a vision zone configured to correct at least part of a near vision aberration.
3. The eyeglass lens of claim 1 further comprising a normal vision zone.
4. The eyeglass lens of claim 1 in which the plurality of vision zones comprises at least two vision zones, each of which is independently configured to substantially correct at least a high order aberration.
5. The eyeglass lens of claim 1 in which the plurality of vision zones comprises at least two vision zones, each of which is independently configured to substantially correct at least a low order aberration.
6. The eyeglass lens of claim 1 in which the at least one transition zone is configured to provide a smooth transition between a first vision zone configured to correct at least part of the plurality of different aberrations of the patient's eye for a first gazing angle and a second vision zone configured to correct at least part of the plurality of different aberrations of the patient's eye for a second gazing angle.
7. The eyeglass lens of claim 6 in which the plurality of different aberrations comprises at least one aberration selected from the group consisting of low order aberration and high order aberration.
8. The eyeglass lens of claim 1 that is a multi-focal lens.
9. The eyeglass lens of claim 1 that is a reading lens.
10. The eyeglass lens of claim 1 that is a progressive addition lens.
11. The eyeglass lens of claim 1 in which at least one of the first lens and the third lens is configured to substantially correct a low order aberration.
12. The eyeglass lens of claim 1 in which at least one of the first lens and the third lens is configured to correct at least part of a low order aberration.
13. The eyeglass lens of claim 12 in which the second layer is configured to correct a least part of the low order aberration.
14. The eyeglass lens of claim 12 in which the second layer is configured to correct a least part of a high order aberration.