Ophthalmic lens
A thin film coating for an ophthalmic lens is provided, that comprises alternating layers of high and low index materials. The coating attenuates the transmission of light and has a spectral reflectance curve characterized by a reflectance of at least about 90% in a range from 320 nm to 420 nm, by 50% at 440 nm, by 5% or less at 460 nm, and wherein the spectral reflectance curve is monotonically or strictly decreasing between 420 nm to 460 nm.
1. An ophthalmic lens comprising:
an optical lens having a front surface and a back surface;
a coating on the front surface that attenuates transmission of light with a spectral reflectance curve that is monotonically decreasing from 90% or more to 10% or less, within the range from 420 nm to 460 nm.
2. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve is strictly decreasing from 90% or more to 10% or less, within the range from 420 nm to 460 nm.
3. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve at 50% reflectance within the range from 420 nm to 460 nm, has a slope m of between about −0.7 to about −0.62.
4. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve at 440 nm has a slope m of between about −0.7 to about −0.62.
5. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve is monotonically decreasing from 90% or more to 5% or less, within the range from 420 nm to 460 nm.
6. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve is monotonically decreasing from 95% or more to 5% or less, within the range from 420 nm to 460 nm.
7. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve is less than 20% from 460 nm to 700 nm.
8. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve is less than 15% from 460 nm to 700 nm.
9. The ophthalmic lens of claim 1 , wherein the spectral reflectance curve further comprises a secondary peak of reflectance of at least 5%, within the range from 460 nm to 540 nm.
10. The ophthalmic lens of claim 9 , wherein the secondary peak of reflectance is at about 490 nm.
11. The ophthalmic lens of claim 9 , wherein the secondary peak of reflectance is between 5% to 15%.
12. The ophthalmic lens of claim 9 , wherein the secondary peak of reflectance has a full width half maximum of about 55 nm.
13. The ophthalmic lens of claim 9 , wherein the spectral reflectance curve is strictly decreasing from 90% or more to 10% or less, within the range from 420 nm to 460 nm.
14. The ophthalmic lens of claim 9 , wherein the spectral reflectance curve at 50% reflectance between 400 nm to 450 nm has a slope m of between about −0.7 to about −0.62.
15. The ophthalmic lens of claim 9 , wherein the spectral reflectance curve at 440 nm has a slope m of between about −0.7 to about −0.62.
16. The ophthalmic lens of claim 9 , wherein the spectral reflectance curve is monotonically decreasing from 90% or more to 5% or less, within the range from 420 nm to 460 nm.
17. The ophthalmic lens of claim 9 , wherein the spectral reflectance curve is monotonically decreasing from 95% or more to 5% or less, within the range from 420 nm to 460 nm.
18. An ophthalmic lens comprising:
an optical lens having a front surface and a back surface;
a coating on the front surface that attenuates transmission of light with a spectral reflectance curve that is monotonically decreasing from 80% or more to 10% or less, within the range from 420 nm to 460 nm.
19. The ophthalmic lens of claim 18 , wherein the spectral reflectance curve is strictly decreasing from 80% or more to 10% or less, within the range from 420 nm to 460 nm.
20. The ophthalmic lens of claim 18 , wherein the spectral reflectance curve further comprises a secondary peak of reflectance of at least 5%, within the range from 460 nm to 540 nm.
21. The ophthalmic lens of claim 20 , wherein the secondary peak of reflectance is between 5% to 15%.
22. The ophthalmic lens of claim 21 , wherein the secondary peak of reflectance has a full width half maximum of about 55 nm.
23. The ophthalmic lens of claim 20 , wherein the secondary peak of reflectance is at about 490 nm.