Optical lens and method for manufacturing the same

Abstract

An optical lens and its manufacturing method are disclosed. The optical lens includes a front surface and a rear surface. The front surface includes a central optical region and a micron-structure region. The micron-structure region includes a micron-lens region, a micron-island region, and a micron-dot region. The micron-lens region surrounds the central optical region and forms a micron-lens structure thereon. The micron-island region surrounds the micron-lens region and forms a micron-island structure thereon. The micron-dot region surrounds the micron-island region and forms a micron-dot structure thereon.

Claims

1. An optical lens comprising: a rear surface; and a front surface formed on a pair of opposing sides of the rear surface, comprising: a central optical region; and a micron-structure region comprising: a micron-lens region surrounding the central optical region and having a micron-lens structure formed thereon; a micron-island region surrounding the micron-lens region and having a micron-island structure formed thereon; and a micron-dot region surrounding the micron-island region and having a micron-dot structure formed thereon; wherein, The micron lens structure, the micron island structure, and the micron dot structure are used to reduce the mid-frequency contrast, the mid-high frequency contrast, and the low-mid-frequency contrast, respectively; wherein the mid-frequency contrast corresponds to 10 to 20 per degree of spatial frequency, the mid-high frequency contrast corresponds to 15 to 30 per degree of spatial frequency, and the low-mid-frequency contrast corresponds to 5 to 15 per degree of spatial frequency.

2. An optical lens, comprising: a rear surface; and a front surface formed on a pair of opposing sides of the rear surface, comprising: a central optical region; and a micron-structure region comprising: a micron-lens region surrounding the central optical region and having a micron-lens structure formed thereon; a micron-island region surrounding the micron-lens region and having a micron-island structure formed thereon; and a micron-dot region surrounding the micron-island region and having a micron-dot structure formed thereon; wherein, When the optical lens is applied to a contact lens, the diameter of the central optical zone is no greater than 6 mm, the width of the micron lens zone is no greater than 2 mm, the width of the micron island zone is no greater than 4 mm, and the width of the micron dot zone is no greater than 2 mm.

3. The optical lens as described in claim 2, wherein, The microlens structure comprises a plurality of randomly distributed lens units, each with a diameter of 10 to 14 micrometers and a height of 1.2 to 2 micrometers, and the fill rate of the microlens region is 20%.

4. The optical lens as described in claim 2, wherein, The micron-shaped island structure comprises a plurality of randomly distributed island units, each with a diameter of 5 to 10 microns and a height of 1 to 3 microns, and the fill rate of the micron-shaped island region is 10% to 30%.

5. The optical lens as described in claim 2, wherein, The micrometer dot structure comprises a plurality of randomly distributed, tangentially arranged, and randomly oriented elliptical dot units. The minor axis and major axis of each elliptical dot unit are 3 to 5 micrometers and 8 to 12 micrometers, respectively. The height of each elliptical dot unit is 1 to 2.5 micrometers, and the fill rate of the micrometer dot region is 30% to 60%.

6. An optical lens comprising: a rear surface; and a front surface formed on a pair of opposing sides of the rear surface, comprising: a central optical region; and a micron-structure region comprising: a micron-lens region surrounding the central optical region and having a micron-lens structure formed thereon; a micron-island region surrounding the micron-lens region and having a micron-island structure formed thereon; and a micron-dot region surrounding the micron-island region and having a micron-dot structure formed thereon; wherein, The optical lens is implemented on eyeglasses, wherein the diameter of the central optical zone is no greater than 6 mm, the width of the micron lens zone is no greater than 4 mm, the width of the micron island zone is no greater than 4 mm, and the width of the micron dot zone is no greater than 4 mm.

7. The optical lens as described in claim 6, wherein, The microlens structure comprises a plurality of randomly distributed lens units, each with a diameter of 30 to 70 micrometers and a height of 0.15 to 0.25 micrometers, and the fill rate of the microlens region is 20%.

8. The optical lens as claimed in claim 6, wherein, The micron-island structure comprises a plurality of island units, each with a diameter of 15 to 50 microns and a height of 0.125 to 0.375 microns, and the fill rate of the micron-island region is 10% to 30%.

9. The optical lens as claimed in claim 6, wherein, The micrometer dot structure comprises a plurality of randomly distributed, tangentially arranged, and randomly oriented elliptical dot units. The minor axis and major axis of each elliptical dot unit are 9 to 25 micrometers and 24 to 60 micrometers, respectively. The height of each elliptical dot unit is 0.125 to 0.3125 micrometers, and the fill rate of the micrometer dot region is 30% to 60%.

10. The optical lens as claimed in claim 9, wherein, The micron-dot region includes an inner micron-dot region and an outer micron-dot region surrounding the inner micron-dot region. The radial fill rates of the inner micron-dot region and the outer micron-dot region are 25% to 30% and 35% to 45%, respectively. The major axis of the elliptical dot units distributed on the outer micron-dot region is 1 to 2 microns larger than the major axis of the elliptical dot units distributed on the inner micron-dot region.

11. An optical lens comprising: a rear surface; and a front surface formed on a pair of opposing sides of the rear surface, comprising: a central optical region; and a micron-structure region comprising: a micron-lens region surrounding the central optical region and having a micron-lens structure formed thereon; a micron-island region surrounding the micron-lens region and having a micron-island structure formed thereon; and a micron-dot region surrounding the micron-island region and having a micron-dot structure formed thereon; wherein, There is a raised cosine smooth protective band between the central optical area and the micron lens area, a raised cosine smooth protective band between the micron lens area and the micron island area, and a raised cosine smooth protective band between the micron island area and the micron dot area.

12. The optical lens as claimed in claim 11, wherein, When the optical lens is applied to a contact lens, the width of the raised cosine smooth protective band between the central optical zone and the micron lens zone is 0.12 mm to 0.3 mm, the width of the raised cosine smooth protective band between the micron lens zone and the micron island zone is 0.2 mm to 0.35 mm, and the width of the raised cosine smooth protective band between the micron island zone and the micron dot zone is 0.1 mm to 0.25 mm.

13. The optical lens as claimed in claim 11, wherein, The optical lens is implemented on eyeglasses, wherein the width of the raised cosine smooth protective band between the central optical zone and the micron lens zone is 0.6 mm to 1.5 mm, the width of the raised cosine smooth protective band between the micron lens zone and the micron island zone is 1 mm to 1.5 mm, and the width of the raised cosine smooth protective band between the micron island zone and the micron dot zone is 0.3 mm to 1.2 mm.

14. An optical lens comprising: a rear surface; and a front surface formed on a pair of opposing sides of the rear surface, comprising: a central optical region; and a micron-structure region comprising: a micron-lens region surrounding the central optical region and having a micron-lens structure formed thereon; a micron-island region surrounding the micron-lens region and having a micron-island structure formed thereon; and a micron-dot region surrounding the micron-island region and having a micron-dot structure formed thereon; wherein, The rear surface or the front surface and an intermediate layer between the rear surface include a central optical region of the same size and a freeform surface region surrounding the central optical region, and a freeform surface structure is formed on the freeform surface region.

15. The optical lens as claimed in claim 14, wherein, The freeform surface region also includes an inner ring region and an outer ring region, and the freeform surface structure further includes: an inner ring freeform surface structure formed on the inner ring region and used to provide an inner ring positive spherical aberration; and an outer ring freeform surface structure formed on the outer ring region and used to provide an outer ring positive spherical aberration, wherein the outer ring positive spherical aberration is smaller than the inner ring positive spherical aberration.

16. The optical lens as claimed in claim 15, wherein, When the optical lens is applied to a contact lens, the diameter of the central optical zone is no greater than 6 mm, the width of the freeform surface zone is no greater than 0.5 mm, and the inner ring positive spherical aberration and the outer ring positive spherical aberration are each between +5 diopters and +8 diopters.

17. The optical lens as claimed in claim 15, wherein, The optical lens is implemented on eyeglasses, the diameter of the central optical zone is no greater than 6 mm, the width of the freeform surface zone is no greater than 10 mm, and the inner ring positive spherical aberration and the outer ring positive spherical aberration are each between +3 diopters and +6 diopters.

18. The optical lens as claimed in claim 15, wherein, There is a raised cosine smooth protective band between the central optical area and the inner ring area, and there is a raised cosine smooth protective band between the inner ring area and the outer ring area.

19. The optical lens as claimed in claim 18, wherein, When the optical lens is applied to a contact lens, the width of the raised cosine smooth protective band between the central optical zone and the inner ring zone is 0.05 mm to 0.1 mm, and the width of the raised cosine smooth protective band between the inner ring zone and the outer ring zone is 0.15 mm to 0.25 mm.

20. The optical lens as claimed in claim 18, wherein, The optical lens is implemented on eyeglasses, and the width of the raised cosine smooth protective strip between the central optical zone and the inner ring zone is 0.3 mm to 0.6 mm, and the width of the raised cosine smooth protective strip between the inner ring zone and the outer ring zone is 0.8 mm to 1.2 mm.

21. An optical lens comprising: a rear surface; a front surface formed on a pair of opposite sides of the rear surface, comprising: a central optical region; and a micrometer structure region comprising: a micrometer lens region surrounding the central optical region and having a micrometer lens structure formed thereon; a micrometer island region surrounding the micrometer lens region and having a micrometer island structure formed thereon; and a micrometer dot region surrounding the micrometer island region and having a micrometer dot structure formed thereon; and a filter film disposed on the front surface, the rear surface, or between the front surface and the rear surface, for filtering out light with wavelengths from 650 nanometers to 700 nanometers.

22. The optical lens as claimed in claim 21, wherein, The filter film has a multi-layer structure, and its material includes titanium dioxide and silicon dioxide.

23. A method for manufacturing an optical lens, comprising: forming a micron-sized lens structure on a micron-sized lens region on a front surface of a substrate, wherein, The micron lens region surrounds a central optical region on the front surface; a micron island structure is formed on a micron island region on the front surface of the substrate, wherein the micron island region surrounds the micron lens region; a micron dot structure is formed on a micron dot region on the front surface of the substrate, wherein the micron dot region surrounds the micron island region; and a freeform surface structure is formed on a freeform surface region on a rear surface of the substrate, wherein the freeform surface region surrounds a central optical region on the rear surface of the substrate.

24. The method for manufacturing an optical lens as described in claim 23, wherein, The freeform surface region also includes an inner ring region and an outer ring region. There is a raised cosine smoothing protection band between the central optical region and the inner ring region, and between the inner ring region and the outer ring region.

25. A method for manufacturing an optical lens, comprising: forming a micron-sized lens structure on a micron-sized lens region on a front surface of a substrate, wherein, The micron lens region surrounds a central optical region on the front surface; a micron island structure is formed on a micron island region on the front surface of the substrate, wherein the micron island region surrounds the micron lens region; a micron dot structure is formed on a micron dot region on the front surface of the substrate, wherein the micron dot region surrounds the micron island region; and a freeform surface structure is formed on a freeform surface region of an intermediate layer between a rear surface and the front surface of the substrate, wherein the freeform surface region surrounds a central optical region of the intermediate layer of the substrate.

26. A method for manufacturing an optical lens, comprising: forming a micron-sized lens structure on a micron-sized lens region on a front surface of a substrate, wherein, The micron lens region surrounds a central optical region on the front surface; a micron island structure is formed on a micron island region on the front surface of the substrate, wherein the micron island region surrounds the micron lens region; a micron dot structure is formed on a micron dot region on the front surface of the substrate, wherein the micron dot region surrounds the micron island region; and a filter film is formed on the front surface of the substrate, on a rear surface of the substrate, or between the front and rear surfaces of the substrate, wherein the filter film is used to filter out light with wavelengths other than 650 nanometers to 700 nanometers.

27. A method for manufacturing an optical lens, comprising: forming a micron-sized lens structure on a micron-sized lens region on a front surface of a substrate, wherein, The micron lens region surrounds a central optical region on the front surface; a micron island structure is formed on a micron island region on the front surface of the substrate, wherein the micron island region surrounds the micron lens region; and a micron dot structure is formed on a micron dot region on the front surface of the substrate, wherein the micron dot region surrounds the micron island region; wherein a raised cosine smooth protective band is provided between the central optical region and the micron lens region, a raised cosine smooth protective band is provided between the micron lens region and the micron island region, and a raised cosine smooth protective band is provided between the micron island region and the micron dot region.

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