Color balanced ophthalmic system with selective light inhibition

• US 7,520,608 B2
• Filed: 06/12/2007
• Issued: 04/21/2009
• Est. Priority Date: 03/20/2006
• Status: Active Grant

• Current Assignee: High Performance Optics Inc.
• Original Assignee: High Performance Optics Inc.
• Inventors: Ishak, Andrew W., Iyer, Venkatramani S., Blum, Ronald D., Duston, Dwight P., Kokonaski, William, Haddock, Joshua N.
• Primary Examiner(s): Mack; Ricky L
• Assistant Examiner(s): Greece; James R
• Application Number:
  US11/761,892
• Publication Number:
  US 20080043200A1
• Time in Patent Office: 679 Days
• Field of Search: 351/163, 351/165, 351/177, 351/159, 351/160.R, 351/160.H, 351/164, 623/6.17, 623/6.56
• US Class Current: 351/163
• CPC Class Codes: G02C 2202/16 Laminated or compound lenses
• CPC Class Codes: G02C 7/104 having spectral characteristics for purposes other than sun-protection
• CPC Class Codes: G02C 7/108 Colouring materials

Abstract

An ophthalmic system is provided. The system includes an ophthalmic material doped with a dye that absorbs light in a wavelength range and a layer that corrects a color imbalance caused by absorption of light by the dye. The dye can absorb light in a harmful spectral region, such as a narrow blue region. The color balancing layer may allow a user to have a color neutral view when using the system.

Claims

1. An ophthalmic system comprising:

a first layer comprising;

an ophthalmic material; and

a dye that selectively absorbs at least 5% of light in a wavelength range within 400 nm to 500 nm; and

a film disposed on the first layer;

wherein the film compensates for a color imbalance resulting from absorption of light by the dye;

wherein the system has an average transmission of at least 80% across the visible spectrum; and

wherein white light has a CIE of (0.33±

0.05, 0.33±

0.05) when transmitted through the system.

2. The system of claim 1, further comprising a second layer of the ophthalmic material disposed on the film, wherein the film is disposed between the first layer and the second layer.

3. The system of claim 1 wherein the wavelength range is 400 nm-460 nm.

4. The system of claim 1 wherein the wavelength range is 420 nm-440 nm.

5. The system of claim 1 wherein the dye absorbs at least 20% of light having a wavelength of 430 nm.

6. The system of claim 1 wherein the dye absorbs at least 50% of light having a wavelength of 430 nm.

7. The system of claim 1 wherein white light has a CIE of (0.33±

0.02, 0.33±

0.02) when transmitted through the system.

8. The system of claim 1 wherein the film is an antireflective coating disposed on the outer surface of the ophthalmic substrate.

9. The system of claim 1 further comprising an antireflective coating disposed on a surface of the system closest to the eye of a wearer of the system.

10. The system of claim 9 wherein the reflected light observed by a wearer of the system is less than 8%.

11. The system of claim 9 wherein the reflected light observed by a wearer of the system is less than 3%.

12. The system of claim 1 wherein the dye is perylene.

13. The system of claim 1 wherein the dye is a porphyrin.

14. An ophthalmic system that selectively absorbs at least 5% of light in a wavelength range within 400 nm-460 nm, wherein the system has an average transmission of at least 80% across the visible spectrum and wherein white light has a CIE of (0.33±

0.05, 0.33±

0.05) when transmitted through the system.

15. The system of claim 14 wherein the system has an average transmission of at least 90% across the visible spectrum.

16. The system of claim 14 wherein the system absorbs at least 50% of light having a wavelength of 430 nm.

17. The system of claim 14 wherein white light has a CIE of (0.33±

0.02, 0.33±

0.02) when transmitted through the system.

25. The system of claim 14 wherein the system absorbs at least 20% of light having a wavelength of 430 nm.

26. The system of claim 14, wherein the wavelength range spans 60 nm.

27. The system of claim 14, wherein the wavelength range spans 40 nm.

28. The system of claim 14, wherein the wavelength range spans 20 nm.

29. The system of claim 14, wherein the full width at half minimum of the selectively absorbed wavelength range is about 15 nm.

18. A method of making an ophthalmic device, comprising:

providing a first layer comprising an ophthalmic material and a dye that selectively absorbs at least 5% of light in a wavelength range within 400 nm-460 nm; and

depositing a film on the first layer;

wherein the film compensates for a color imbalance resulting from absorption of light by the dye; and

wherein white light has a CIE of (0.33±

0.05, 0.33±

0.05) when transmitted through the device.

19. The method of claim 18 wherein the dye selectively absorbs at least 5% of light having a wavelength of 420 nm-440 nm.

20. The method of claim 18 wherein the dye absorbs at least 20% of light having a wavelength of 430 nm.

21. The method of claim 18 wherein the dye absorbs at least 50% of light having a wavelength of 430 nm.

22. The method of claim 18 wherein white light has a CIE of (0.33±

0.02, 0.33±

0.02) when transmitted through the device.

23. The method of claim 18 wherein the film is an antireflective coating.

24. The method of claim 18, further comprising:

depositing a second layer of the ophthalmic material on the film, wherein the film is disposed between the first layer and the second layer.