High performance selective light wavelength filtering providing improved contrast sensitivity
The present invention relates to ophthalmic systems and coatings comprising a selective light wavelength filter, wherein said selective filter provides improved contrast sensitivity.
1. A display system comprising:
a selective light transmission filter component of a film, a layer, or a coating having:
a transmittance spectrum comprising:
a first minimum value at a first wavelength within a first wavelength range of 400-460 nm,
a first maximum value at a second wavelength that is less than the first wavelength, and
a second maximum value at a third wavelength that is greater than the first wavelength; and
an average transmission of at least 80% across a visible spectrum that includes the third wavelength.
2. The display system of claim 1 , wherein the display system is a computer monitor.
3. The display system of claim 1 , wherein the display system is a television.
4. The display system of claim 1 , wherein the first wavelength range is 430+/−20 nm.
5. The display system of claim 1 , wherein the first wavelength range is 430+/−10 nm.
6. The display system of claim 1 , wherein the selective light transmission filter comprises at least a dye and a pigment.
7. The display system of claim 1 , wherein the selective light transmission filter comprises one or more of: perylene, porphyrin, coumarin, acridine, and derivatives thereof.
8. The display system of claim 1 , wherein the selective light transmission filter comprises perylene or a derivative thereof.
9. The display system of claim 1 , wherein the selective light transmission filter comprises porphyrin or a derivative thereof.
10. The display system of claim 1 , wherein the selective light transmission filter comprises a synthetic or a non-synthetic pigment.
11. The display system of claim 1 , wherein the selective light transmission filter comprises at least one of: melanin, lutein, and zeaxanthin.
12. The display system of claim 1 , wherein the selective light transmission filter comprises a yellowness index of no more than 10.
13. The display system of claim 1 , wherein white light has CIE (x,y) coordinates of (0.33+/−0.05, 0.33+/−0.05) when transmitted through the display system.
14. A display system comprising:
a light transmission filter component of a film, a layer, or a coating having:
a transmittance spectrum comprising:
a first minimum value at a first wavelength within a blue light wavelength range that includes 430 nm,
a first maximum value at a second wavelength that is less than the first wavelength, and
a second maximum value at a third wavelength that is greater than the first wavelength; and
an average transmission of at least 80% across a visible spectrum that includes the third wavelength.
15. The display system of claim 14 , wherein the display system is a computer monitor.
16. The display system of claim 14 , wherein the display system is a television.
17. The display system of claim 14 , wherein the light transmission filter comprises a yellowness index of no more than 10.
18. A system comprising:
a computer monitor; and
a light transmission filter configured to:
block 5-50% of light transmission at each wavelength within a wavelength range of 400-460 nm; and
transmit at least 80% of light across a wavelength range of 460-700 nm, and
wherein the light transmission filter is a component of a film, a layer, or a coating.
19. The display system of claim 18 , wherein the light transmission filter comprises a yellowness index of no more than 15.