Color vision correction filter and optical component
View Patent ↗A color vision correction filter includes a least one type of dye material and the lowest value of transmittance of the color vision correction filter in a wavelength band ranging from 440 nm to 600 nm, inclusive, is in the range of plus or minus 50 nm of 535 nm.
1. A color vision correction filter, comprising:
at least one type of dye material, wherein
the at least one type of dye material has a basic skeleton of merocyanine,
a wavelength at which transmittance of the color vision correction filter is lowest in a wavelength band ranging from 440 nm to 600 nm, inclusive, is in a range of plus or minus 50 nm of 535 nm.
2. The color vision correction filter according to claim 1 , wherein
the wavelength at which the transmittance of the color vision correction filter is lowest in the wavelength band ranging from 440 nm to 600 nm, inclusive, is in a range of plus or minus 30 nm of 535 nm.
3. The color vision correction filter according to claim 1 , wherein
a bandwidth of a peak that includes the lowest value is at least 30 nm and at most 115 nm for a predetermined value in a range in which the transmittance of the color vision correction filter is at least 40% and at most 60%.
4. The color vision correction filter according to claim 1 , wherein
a bandwidth of a peak that includes the lowest value is at least 120 nm and at most 175 nm for a predetermined value in a range in which the transmittance of the color vision correction filter is at least 10% and at most 30%.
5. The color vision correction filter according to claim 1 , wherein
the at least one type of dye material comprises a plural types of dye materials.
6. The color vision correction filter according to claim 1 , wherein
the at least one type of dye material is a light-absorbing material.
7. The color vision correction filter according to claim 6 , wherein
the at least one type of dye material has a peak of absorption in a range from 415 nm to 590 nm, inclusive.
8. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 415 nm to 425 nm, inclusive, and a full width at half maximum of the peak is at least 20 nm and at most 45 nm.
9. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 490 nm to 500 nm, inclusive, and a full width at half maximum of the peak is at least 65 nm and at most 110 nm.
10. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 490 nm to 505 nm, inclusive, and a full width at half maximum of the peak is at least 70 nm and at most 105 nm.
11. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 520 nm to 530 nm, inclusive, and a full width at half maximum of the peak is at least 60 nm and at most 130 nm.
12. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 540 nm to 550 nm, inclusive, and a full width at half maximum of the peak is at least 70 nm and at most 125 nm.
13. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 570 nm to 580 nm, inclusive, and a full width at half maximum of the peak is at least 25 nm and at most 80 nm.
14. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 575 nm to 585 nm, inclusive, and a full width at half maximum of the peak is at least 25 nm and at most 100 nm.
15. The color vision correction filter according to claim 6 , wherein
a dye material included in the at least one type of dye material has a peak of absorption in a range from 580 nm to 590 nm, inclusive, and a full width at half maximum of the peak is at least 45 nm and at most 120 nm.
16. The color vision correction filter according to claim 1 , wherein
reflectance of the color vision correction filter is at most 15%.
17. The color vision correction filter according to claim 1 , wherein
the at least one type of dye material has an absorbance of at least 90 and at most 310, and
the at least one type of dye material has a basic skeleton of merocyanine, tetraazaporphyrin, or phthalocyanine.
18. The color vision correction filter according to claim 1 , further comprising:
a base material that contains the at least one type of dye material, wherein
the base material includes a polycarbonate-based, cycloolefin-based, or acrylic resin,
a total concentration of the at least one type of dye material contained in the base material is at least 20 ppm and at most 850 ppm,
the base material has a thickness of at least 1 mm and at most 3 mm, and
the base material has a radius of curvature of at least 60 mm and at most 800 mm.
19. The color vision correction filter according to claim 18 , wherein
the at least one type of dye material is evenly dispersed in the base material.
20. An optical component, comprising:
the color vision correction filter according to claim 1 .
21. The optical component according to claim 20 , wherein
the optical component is a pair of eyeglasses, a contact lens, an intraocular lens, or a pair of goggles.