Optical lens and electronic device

Abstract

The utility model provides an optical lens and an electronic device, the optical lens comprises at least four optical lenses, and the at least four optical lenses comprise a first optical lens, a second optical lens, a third optical lens and a fourth optical lens from the object side to the image side of the optical lens. The at least four optical lenses include a blue glass lens. Therefore, by adding the blue glass material in the optical lens, a blue glass plate is omitted to prevent visible light from being reflected to the photosensitive element, petal-shaped solar flares are reduced, and the imaging quality is improved.

Description

Technical Field

[0001] This disclosure relates to an optical lens and an electronic device, and more particularly to an optical lens and electronic device comprising a blue glass lens capable of filtering out near-infrared light. Background Technology

[0002] The existing method for filtering near-infrared light in optical lenses involves placing a blue glass plate coated with a near-infrared light filtering film in front of the image sensor as a filter. While combining the near-infrared light filtering film with the blue glass material reduces the interference of near-infrared light on optical imaging, visible light is reflected back and forth between the near-infrared light filtering film, the blue glass plate, and the image sensor. This reflected light repeatedly strikes the image sensor, producing persistent petal-shaped flares that significantly degrade image quality.

[0003] Therefore, although the blue glass plate and its surface near-infrared light filtering coating are important configurations that cannot be easily changed, new near-infrared light filtering configurations need to be developed to solve the defects caused by this configuration. Utility Model Content

[0004] This disclosure provides an optical lens and electronic device that, by adding blue glass material to the optical lens, eliminates the need for a blue glass plate to prevent visible light from reflecting onto the photosensitive element, thereby helping to reduce petal-shaped flare and improve image quality. Furthermore, by satisfying the fifth setting factor on the blue glass lens, the blue glass lens can filter out appropriate near-infrared light, achieving the best effect in near-infrared light filtering.

[0005] According to this disclosure, an optical lens is provided, comprising at least four optical lenses, wherein the at least four optical lenses, from the object side to the image side, include a first optical lens, a second optical lens, a third optical lens, and a fourth optical lens. The at least four optical lenses include a blue glass lens, wherein the first setting factor of the blue glass lens is Fb1, and the fifth setting factor of the blue glass lens is Fb5, satisfying the following conditions: Fb1 ≤ 1.50; and 0.08 ≤ Fb5 ≤ 0.30.

[0006] Based on the aforementioned optical lens, the second setting factor of the blue glass lens is Fb2, which can satisfy the following condition: Fb2≤0.30.

[0007] Based on the aforementioned optical lens, the third setting factor of the blue glass lens is Fb3, which can satisfy the following condition: 0.50≤Fb3≤2.00.

[0008] Based on the aforementioned optical lens, the fourth setting factor of the blue glass lens is Fb4, which can satisfy the following condition: Fb4≤0.10.

[0009] Based on the aforementioned optical lens, the Abbe number of each optical lens is V, and the blue glass lens can satisfy the following condition: 20.00≤V.

[0010] Based on the aforementioned optical lens, the overall setting factor of the blue glass lens is FB, which satisfies the following condition: 0 <FB。

[0011] Based on the aforementioned optical lens, the wavelength of the optical lens at 50% transmittance is Wt50, which can satisfy the following conditions: 600nm≤Wt50≤700nm.

[0012] Based on the aforementioned optical lens, the at least four optical lenses may include a long-wavelength absorption lens.

[0013] Based on the aforementioned optical lens, the main setting factor of the long-wavelength absorption lens is FA, which can satisfy the following condition: 0.50≤FA.

[0014] Based on the aforementioned optical lens, the material setting factor of the long-wavelength absorption lens is Fam, which can satisfy the following conditions: 20.00≤Fam≤50.00.

[0015] Based on the aforementioned optical lens, the center thickness of the blue glass lens on the optical axis is CTB, and the center thickness of the long-wavelength absorption lens on the optical axis is CTA. It can satisfy the following condition: 1.00≤CTB / CTA.

[0016] Based on the aforementioned optical lens, the average transmittance of the optical lens in the wavelength range of 600nm to 650nm is T6065, which can satisfy the following condition: T6065≤60.00%.

[0017] Based on the aforementioned optical lens, the average transmittance of the optical lens in the wavelength range of 650nm to 700nm is T6570, which can satisfy the following condition: T6570≤30.00%.

[0018] Based on the aforementioned optical lens, the average transmittance of the optical lens in the wavelength range of 700nm to 1050nm is T70105, which can satisfy the following condition: T70105≤10.00%.

[0019] Based on the aforementioned optical lens, the transmittance of the optical lens at a wavelength of 850nm is T85, which can satisfy the following condition: T85≤10.00%.

[0020] Based on the aforementioned optical lens, the transmittance of the optical lens at a wavelength of 940nm is T94, which can satisfy the following condition: T94≤10.00%.

[0021] Based on the aforementioned optical lens, the transmittance of the optical lens at a wavelength of 1050nm is T105, which can satisfy the following condition: T105≤10.00%.

[0022] According to the aforementioned optical lens, the at least four optical lenses may include a long-wavelength filtering lens, the long-wavelength filtering lens may include a long-wavelength filtering coating; and the long-wavelength filtering coating may include at least one low-refractive-index film layer and at least one high-refractive-index film layer, and the long-wavelength filtering coating may be an alternating stack of high-refractive-index film layers and low-refractive-index film layers.

[0023] Based on the aforementioned optical lens, the coating setting factor of the object-side surface of the long-wavelength filter lens is FcR1, and the coating setting factor of the image-side surface of the long-wavelength filter lens is FcR2, which can satisfy the following conditions: 5.00≤FcR1; or 5.00≤FcR2.

[0024] Based on the aforementioned optical lens, the blue glass lens and the long-wavelength filter lens can be the same optical lens. The merging setting factor of the object-side surface of the blue glass lens is FbcR1, and the merging setting factor of the image-side surface of the blue glass lens is FbcR2. It can satisfy the following conditions: 4.00≤FbcR1; or 4.00≤FbcR2.

[0025] Based on the aforementioned optical lens, the total number of layers of the long-wavelength filtering coating is tLs, which can satisfy the following condition: tLs≤80.

[0026] Based on the aforementioned optical lens, the total thickness of the long-wavelength filtering coating is tTk, which can satisfy the following conditions: 3000nm≤tTk≤10000nm.

[0027] Based on the aforementioned optical lens, the total thickness of the high refractive index film is HtTk, and the total thickness of the low refractive index film is LtTk, which can satisfy the following condition: 1.00≤LtTk / HtTk≤2.00.

[0028] Based on the aforementioned optical lens, the refractive index of the high refractive index film is NH, and the refractive index of the low refractive index film is NL, which can satisfy the following condition: 0.50≤NH-NL.

[0029] In accordance with this disclosure, another electronic device is provided, comprising the optical lens as described above.

[0030] According to the present disclosure, another optical lens is provided, which includes at least four optical lenses. The at least four optical lenses include a first optical lens, a second optical lens, a third optical lens, and a fourth optical lens from the object side to the image side of the optical lens. The at least four optical lenses include a blue glass lens, the fifth setting factor of the blue glass lens is Fb5, and the comprehensive setting factor of the blue glass lens is FB, which satisfy the following conditions: 0.05 ≤ Fb5 ≤ 0.40; and 0.50 ≤ FB.

[0031] According to the foregoing optical lens, the distance on the optical axis from the object side surface of the first optical lens to the image side surface of the last optical lens is TD, and the maximum image height of the optical lens is ImgH, which can satisfy the following conditions: 0 < TD / ImgH ≤ 2.00.

[0032] According to the foregoing optical lens, the first setting factor of the blue glass lens is Fb1, which can satisfy the following conditions: Fb1 ≤ 1.40.

[0033] According to the foregoing optical lens, the second setting factor of the blue glass lens is Fb2, which can satisfy the following conditions: Fb2 ≤ 0.25.

[0034] According to the foregoing optical lens, the third setting factor of the blue glass lens is Fb3, which can satisfy the following conditions: 0.60 ≤ Fb3 ≤ 1.50.

[0035] According to the foregoing optical lens, the fourth setting factor of the blue glass lens is Fb4, which can satisfy the following conditions: Fb4 ≤ 0.08.

[0036] According to the foregoing optical lens, the total focal length of the optical lens is F, and the maximum image height of the optical lens is ImgH, which can satisfy the following conditions: 2.50 ≤ F / ImgH ≤ 4.00.

[0037] According to the foregoing optical lens, the at least four optical lenses may include a long wavelength filter lens, the long wavelength filter lens may include a long wavelength filter coating; and the long wavelength filter coating may include at least one low refractive index film layer and at least one high refractive index film layer, and the long wavelength filter coating may be an alternating stack of high refractive index film layers and low refractive index film layers. Where the coating setting factor of the object side surface of the long wavelength filter lens is FcR1, and the coating setting factor of the image side surface of the long wavelength filter lens is FcR2, which can satisfy the following conditions: 7.50 ≤ FcR1; or 7.50 ≤ FcR2.

[0038] According to the foregoing optical lens, the maximum viewing angle of the optical lens is FOV, which can satisfy the following conditions: 0 degrees < FOV ≤ 50.00 degrees.

[0039] Based on the aforementioned optical lens, the total focal length of the optical lens is F, and the distance on the optical axis from the object-side surface of the first optical lens to the image-side surface of the last optical lens is TD, which can satisfy the following condition: 0 <F / TD≤0.80。

[0040] Based on the aforementioned optical lens, the at least four optical lenses may include a long-wavelength absorbing lens, the main setting factor of which is FA, and it can satisfy the following condition: 2.00≤FA≤5.00.

[0041] Based on the aforementioned optical lens, the material setting factor of the long-wavelength absorption lens is Fam, which can satisfy the following conditions: 30.00≤Fam≤40.00.

[0042] Based on the aforementioned optical lens, the center thickness of the blue glass lens on the optical axis is CTB, and the center thickness of the long-wavelength absorption lens on the optical axis is CTA. It can satisfy the following condition: 1.70≤CTB / CTA≤2.30.

[0043] Based on the aforementioned optical lens, the first setting factor of the blue glass lens is Fb1, the second setting factor of the blue glass lens is Fb2, the third setting factor of the blue glass lens is Fb3, the fourth setting factor of the blue glass lens is Fb4, the fifth setting factor of the blue glass lens is Fb5, the comprehensive setting factor of the blue glass lens is FB, the center thickness of the blue glass lens on the optical axis is CTB, and the center thickness of the long-wavelength absorbing lens on the optical axis is CTA. These factors satisfy the following conditions: 1.05≤Fb1≤1.15; 0≤Fb2≤0.15; 0.95≤Fb3≤1.06; 0.02≤Fb4≤0.045; 0.115≤Fb5≤0.12; 3.00≤FB≤∞; and 1.90≤CTB / CTA≤2.10.

[0044] In accordance with this disclosure, another electronic device is provided, comprising the optical lens as described above. Attached Figure Description

[0045] To make the above and other objects, features, advantages and embodiments of this disclosure more apparent and understandable, the accompanying drawings are described below:

[0046] Figure 1 The graph shows the relationship between transmittance and wavelength for the optical lens of the first comparative example.

[0047] Figure 2 This is a schematic diagram illustrating the optical lens of the first embodiment;

[0048] Figure 3 This is a graph showing the relationship between the transmittance and wavelength of the optical lens in the first embodiment;

[0049] Figure 4A graph showing the relationship between the transmittance and wavelength of the optical lens in the second embodiment; and

[0050] Figure 5 This is a schematic diagram illustrating the electronic device 200 of the third embodiment.

[0051] [Symbol Explanation]

[0052] 100, 210: Optical lenses

[0053] 101: Object Side

[0054] 102: Image side

[0055] 200: Electronic devices Detailed Implementation

[0056] One embodiment of this disclosure provides an optical lens comprising at least four optical lenses, wherein the at least four optical lenses, from the object side to the image side, include a first optical lens, a second optical lens, a third optical lens, and a fourth optical lens. The at least four optical lenses include a blue glass lens, wherein the first setting factor of the blue glass lens is Fb1, and the fifth setting factor of the blue glass lens is Fb5, satisfying the following conditions: Fb1 ≤ 1.50; and 0.08 ≤ Fb5 ≤ 0.30. By adding blue glass material to the optical lenses, the blue glass plate is eliminated to prevent visible light reflection to the photosensitive element, which helps to reduce petal-shaped flare and improve image quality. Furthermore, by limiting the first setting factor on the blue glass lens, a small magnification difference is ensured across the thickness of the blue glass lens at extreme optical path lengths, which helps to reduce the difference in near-infrared light filtering between the maximum and minimum optical path field of view. Furthermore, by satisfying the fifth setting factor on the blue glass lens, the blue glass lens can filter out appropriate near-infrared light, achieving optimal near-infrared light filtering effect.

[0057] Another embodiment of an aspect of the present disclosure provides an optical lens including at least four optical lenses. The at least four optical lenses include a first optical lens, a second optical lens, a third optical lens, and a fourth optical lens from the object side to the image side of the optical lens. The at least four optical lenses include a blue glass lens. The fifth setting factor of the blue glass lens is Fb5, and the comprehensive setting factor of the blue glass lens is FB, which satisfy the following conditions: 0.05 ≤ Fb5 ≤ 0.40; and 0.50 ≤ FB. Thereby, by adding blue glass material to the optical lens and eliminating the blue glass plate to avoid visible light reflection onto the photosensitive element, it helps to reduce petal-shaped flare and improve imaging quality. Furthermore, by satisfying the fifth setting factor on the blue glass lens, the blue glass lens can filter appropriate near-infrared light to achieve the best effect of near-infrared light filtering. Moreover, by designing an appropriate comprehensive setting factor on the blue glass lens, the setting requirements of the blue glass for the optical path of the entire field of view of the optical lens can be comprehensively considered, which helps to optimize the near-infrared light filtering effect.

[0058] For the optical lens according to the present disclosure, the fifth setting factor of the blue glass lens is Fb5, which can satisfy the following conditions: 0.07 ≤ Fb5 ≤ 0.35. By satisfying the fifth setting factor on the blue glass lens, the blue glass lens can filter appropriate near-infrared light to achieve the best effect of near-infrared light filtering. Alternatively, it can satisfy the following conditions: 0.08 ≤ Fb5 ≤ 0.30. Alternatively, it can satisfy the following conditions: 0.10 ≤ Fb5 ≤ 0.20. Alternatively, it can satisfy the following conditions: 0.11 ≤ Fb5 ≤ 0.15. Alternatively, it can satisfy the following conditions: 0.115 ≤ Fb5 ≤ 0.12.

[0059] For the optical lens according to the present disclosure, the first setting factor of the blue glass lens is Fb1, which can satisfy the following conditions: Fb1 ≤ 1.40. By restricting the first setting factor on the blue glass lens, it is ensured that the extreme optical path has a small magnification difference in the thickness of the blue glass lens, which helps to reduce the near-infrared light filtering difference between the maximum optical path field of view and the minimum optical path field of view of the blue glass lens. Alternatively, it can satisfy the following conditions: Fb1 ≤ 1.30. Alternatively, it can satisfy the following conditions: 0 < Fb1 ≤ 1.20. Alternatively, it can satisfy the following conditions: 1.00 ≤ Fb1 ≤ 1.15. Alternatively, it can satisfy the following conditions: 1.05 ≤ Fb1 ≤ 1.15.

[0060] According to the optical lens disclosed herein, the second setting factor of the blue glass lens is Fb2, which satisfies the following condition: Fb2 ≤ 0.30. By limiting the second setting factor on the blue glass lens, a small numerical difference in the extreme optical path length across the thickness of the blue glass lens is ensured, further reducing the difference in near-infrared light filtering between the maximum and minimum optical path field of view. Alternatively, it can satisfy the following condition: Fb2 ≤ 0.25. Alternatively, it can satisfy the following condition: Fb2 ≤ 0.20. Alternatively, it can satisfy the following condition: 0 ≤ Fb2 ≤ 0.15. Alternatively, it can satisfy the following condition: 0.08 ≤ Fb2 ≤ 0.12. Alternatively, it can satisfy the following condition: 0.09 ≤ Fb2 ≤ 0.11. Alternatively, it can satisfy the following condition: 0.10 ≤ Fb2 ≤ 0.105.

[0061] According to the optical lens disclosed herein, the third setting factor of the blue glass lens is Fb3, which satisfies the following condition: 0.50 ≤ Fb3 ≤ 2.00. By satisfying the third setting factor on the blue glass lens, the overall optical path across the entire field of view is ensured to be similar to the thickness of the blue glass lens, which helps to improve the filtering effect of the blue glass lens on near-infrared light across the entire field of view. Alternatively, it can satisfy the following condition: 0.60 ≤ Fb3 ≤ 1.50. Alternatively, it can satisfy the following condition: 0.80 ≤ Fb3 ≤ 1.20. Alternatively, it can satisfy the following condition: 0.90 ≤ Fb3 ≤ 1.10. Alternatively, it can satisfy the following condition: 0.93 ≤ Fb3 ≤ 1.07. Alternatively, it can satisfy the following condition: 0.95 ≤ Fb3 ≤ 1.06. Alternatively, it can satisfy the following condition: 0.99 ≤ Fb3 ≤ 1.01.

[0062] According to the optical lens disclosed herein, the fourth setting factor of the blue glass lens is Fb4, which satisfies the following condition: Fb4 ≤ 0.10. By limiting the fourth setting factor on the blue glass lens, a small optical path difference across the entire field of view is ensured, which helps to reduce the filtering differences of the blue glass lens for near-infrared light across the entire field of view. Alternatively, it can satisfy the following condition: Fb4 ≤ 0.08. Alternatively, it can satisfy the following condition: Fb4 ≤ 0.06. Alternatively, it can satisfy the following condition: 0 ≤ Fb4 ≤ 0.05. Alternatively, it can satisfy the following condition: 0.02 ≤ Fb4 ≤ 0.045.

[0063] For the optical lens according to the present disclosure, the comprehensive setting factor of the blue glass lens is FB, which can satisfy the following conditions: 0 < FB. By designing an appropriate comprehensive setting factor on the blue glass lens, the setting requirements of the blue glass for the optical path of the entire field of view of the optical lens can be comprehensively considered, which helps to optimize the near-infrared light filtering effect. Or, it can satisfy the following conditions: 1.00 ≤ FB. Or, it can satisfy the following conditions: 2.00 ≤ FB. Or, it can satisfy the following conditions: 2.50 ≤ FB. Or, it can satisfy the following conditions: 3.00 ≤ FB ≤ ∞. Or, it can satisfy the following conditions: 5.00 ≤ FB ≤ 100.00. Or, it can satisfy the following conditions: 7.50 ≤ FB ≤ 10.00.

[0064] For the optical lens according to the present disclosure, the Abbe number of each optical lens is V, and the blue glass lens satisfies the following conditions: 20.00 ≤ V. By satisfying the Abbe number of the blue glass lens, the material of the optical lens can be evenly mixed with the blue glass material and the haze can be reduced, which helps to improve the uniformity and visible light transmittance of the blue glass lens. Or, it can satisfy the following conditions: 30.00 ≤ V ≤ 100.00. Or, it can satisfy the following conditions: 40.00 ≤ V ≤ 90.00. Or, it can satisfy the following conditions: 50.00 ≤ V ≤ 85.00. Or, it can satisfy the following conditions: 60.00 ≤ V ≤ 80.00. Or, it can satisfy the following conditions: 70.00 ≤ V ≤ 75.00.

[0065] For the optical lens according to the present disclosure, the at least four optical lenses may include a long wavelength absorption lens. By providing the long wavelength absorption lens, the near-infrared light band with poor filtering effect of the blue glass lens can be filtered more effectively.

[0066] For the optical lens according to the present disclosure, the main setting factor of the long wavelength absorption lens is FA, which can satisfy the following conditions: 0.50 ≤ FA. By designing an appropriate main setting factor on the long wavelength absorption lens, it is ensured that the optical path difference between the entire fields of view is small, which helps to reduce the filtering difference of the long wavelength absorption lens for the near-infrared light of the entire field of view. Or, it can satisfy the following conditions: 0.80 ≤ FA ≤ ∞. Or, it can satisfy the following conditions: 1.00 ≤ FA ≤ 100.00. Or, it can satisfy the following conditions: 1.20 ≤ FA ≤ 10.00. Or, it can satisfy the following conditions: 2.00 ≤ FA ≤ 5.00. Or, it can satisfy the following conditions: 2.50 ≤ FA ≤ 3.00. Or, it can satisfy the following conditions: 2.80 ≤ FA ≤ 2.90.

[0067] According to the optical lens disclosed herein, the material setting factor of the long-wavelength absorbing lens is Fam, which can satisfy the following condition: 20.00≤Fam≤50.00. By satisfying the material setting factor on the long-wavelength absorbing lens, the material of the optical lens can be uniformly mixed with the long-wavelength absorbing material, which helps to improve the uniformity of the long-wavelength absorbing lens. Alternatively, it can satisfy the following condition: 25.00≤Fam≤45.00. Alternatively, it can satisfy the following condition: 30.00≤Fam≤40.00. Alternatively, it can satisfy the following condition: 35.00≤Fam≤38.00.

[0068] According to the optical lens disclosed herein, the center thickness of the blue glass lens along the optical axis is CTB, and the center thickness of the long-wavelength absorbing lens along the optical axis is CTA, which can satisfy the following condition: 1.00 ≤ CTB / CTA. By satisfying the thickness ratio of the blue glass lens and the long-wavelength absorbing lens, an optimal combination of the blue glass lens and the long-wavelength absorbing lens can be achieved, which helps to improve the overall near-infrared light filtering effect of the optical lens. Alternatively, it can satisfy the following condition: 1.20 ≤ CTB / CTA. Alternatively, it can satisfy the following condition: 1.40 ≤ CTB / CTA. Alternatively, it can satisfy the following condition: 1.50 ≤ CTB / CTA ≤ 3.00. Alternatively, it can satisfy the following condition: 1.60 ≤ CTB / CTA ≤ 2.50. Alternatively, it can satisfy the following condition: 1.70 ≤ CTB / CTA ≤ 2.30. Alternatively, it can satisfy the following condition: 1.90 ≤ CTB / CTA ≤ 2.10.

[0069] According to the optical lens disclosed herein, the wavelength at 50% transmittance is Wt50, which satisfies the following condition: 600nm ≤ Wt50 ≤ 700nm. By limiting the wavelength at 50% transmittance, the 50% transmittance is confined to the visible light range, which helps to shift the filtering band of the optical lens towards visible light, thereby reducing the transmission of near-infrared light. Alternatively, it can satisfy the following condition: 600nm ≤ Wt50 ≤ 680nm. Alternatively, it can satisfy the following condition: 600nm ≤ Wt50 ≤ 660nm. Alternatively, it can satisfy the following condition: 600nm ≤ Wt50 ≤ 650nm.

[0070] According to the optical lens disclosed herein, the average transmittance of the optical lens in the wavelength range of 600nm to 650nm is T6065, which satisfies the following condition: T6065 ≤ 60.00%. By limiting the transmittance in the wavelength range of 600nm to 650nm, low transmittance of long-wavelength red light is ensured, thereby reducing excess red light and improving image quality. Alternatively, it can satisfy the following condition: T6065 ≤ 55.00%. Alternatively, it can satisfy the following condition: T6065 ≤ 50.00%. Alternatively, it can satisfy the following condition: T6065 ≤ 45.00%. Alternatively, it can satisfy the following condition: 0% ≤ T6065 ≤ 40.00%.

[0071] According to the optical lens disclosed herein, the average transmittance of the optical lens in the wavelength range of 650 nm to 700 nm is T6570, which satisfies the following condition: T6570 ≤ 30.00%. By limiting the transmittance in the wavelength range of 650 nm to 700 nm, ensuring low transmittance of short-wavelength near-infrared light helps to reduce imaging interference from short-wavelength near-infrared light. Alternatively, it can satisfy the following condition: T6570 ≤ 25.00%. Alternatively, it can satisfy the following condition: T6570 ≤ 20.00%. Alternatively, it can satisfy the following condition: T6570 ≤ 15.00%. Alternatively, it can satisfy the following condition: 0% ≤ T6570 ≤ 13.00%.

[0072] According to the optical lens disclosed herein, the average transmittance of the optical lens in the wavelength range of 700 nm to 1050 nm is T70105, which satisfies the following condition: T70105 ≤ 10.00%. By limiting the transmittance in the wavelength range of 700 nm to 1050 nm, ensuring low transmittance of near-infrared light in the detectable wavelength range of the photosensitive element helps to reduce imaging interference from near-infrared light in the detectable wavelength range. Alternatively, it can satisfy the following condition: T70105 ≤ 5.00%. Alternatively, it can satisfy the following condition: T70105 ≤ 3.00%. Alternatively, it can satisfy the following condition: T70105 ≤ 2.00%. Alternatively, it can satisfy the following condition: T70105 ≤ 1.00%. Alternatively, it can satisfy the following condition: 0% ≤ T70105 ≤ 0.50%.

[0073] According to the optical lens disclosed herein, the transmittance T85 at a wavelength of 850 nm can satisfy the following condition: T85 ≤ 10.00%. By limiting the transmittance at a wavelength of 850 nm, the interference of products emitting 850 nm near-infrared light in daily life on optical imaging can be avoided. Alternatively, it can satisfy the following condition: T85 ≤ 5.00%. Alternatively, it can satisfy the following condition: T85 ≤ 2.50%. Alternatively, it can satisfy the following condition: T85 ≤ 1.00%. Alternatively, it can satisfy the following condition: T85 ≤ 0.50%. Alternatively, it can satisfy the following condition: 0% ≤ T85 ≤ 0.30%.

[0074] According to the optical lens disclosed herein, the transmittance T94 at a wavelength of 940 nm can satisfy the following condition: T94 ≤ 10.00%. By limiting the transmittance at a wavelength of 940 nm, the influence of products emitting 940 nm near-infrared light in daily life on optical imaging can be avoided. Alternatively, it can satisfy the following condition: T94 ≤ 5.00%. Alternatively, it can satisfy the following condition: T94 ≤ 2.50%. Alternatively, it can satisfy the following condition: T94 ≤ 1.00%. Alternatively, it can satisfy the following condition: T94 ≤ 0.50%. Alternatively, it can satisfy the following condition: 0% ≤ T94 ≤ 0.30%.

[0075] According to the optical lens disclosed herein, the transmittance T105 at a wavelength of 1050 nm can satisfy the following condition: T105 ≤ 10.00%. By limiting the transmittance at a wavelength of 1050 nm, the interference of products emitting 1050 nm near-infrared light in daily life on optical imaging can be avoided. Alternatively, it can satisfy the following condition: T105 ≤ 5.00%. Alternatively, it can satisfy the following condition: T105 ≤ 2.50%. Alternatively, it can satisfy the following condition: T105 ≤ 1.00%. Alternatively, it can satisfy the following condition: T105 ≤ 0.50%. Alternatively, it can satisfy the following condition: 0% ≤ T105 ≤ 0.30%.

[0076] According to the optical lens disclosed herein, the at least four optical lenses may include a long-wavelength filter lens, which includes a long-wavelength filter coating. The long-wavelength filter coating includes at least one low-refractive-index layer and at least one high-refractive-index layer, and the long-wavelength filter coating consists of alternating stacks of high-refractive-index and low-refractive-index layers. By providing a long-wavelength filter lens, the near-infrared light band, which is poorly filtered by the blue glass lens, can be filtered out.

[0077] According to the optical lens disclosed herein, the coating setting factor on the object-side surface of the long-wavelength filtering lens is FcR1, and the coating setting factor on the image-side surface of the long-wavelength filtering lens is FcR2, which can satisfy the following conditions: 5.00≤FcR1; or 5.00≤FcR2. By satisfying the coating setting factor on the object-side or image-side surface of the long-wavelength filtering lens, the surface undulation of the optical lens can be reduced, which helps to improve the uniformity of the filtering coating. Alternatively, it can satisfy the following conditions: 7.50≤FcR1; or 7.50≤FcR2. Alternatively, it can satisfy the following conditions: 10.00≤FcR1; or 10.00≤FcR2. Alternatively, it can satisfy the following conditions: 15.00≤FcR1; or 15.00≤FcR2. Alternatively, it can satisfy the following conditions: 20.00≤FcR1; or 20.00≤FcR2. Alternatively, it may satisfy the following conditions: 50.00≤FcR1≤∞; or 50.00≤FcR2≤∞. Alternatively, it may satisfy the following conditions: 100.00≤FcR1≤1000.00; or 100.00≤FcR2≤1000.00.

[0078] According to the optical lens disclosed herein, the blue glass lens and the long-wavelength filter lens can be the same optical lens. The blue glass lens has high-temperature resistance; by setting the blue glass lens and the long-wavelength filter lens as the same optical lens, the deformation of the optical lens by the long-wavelength filter coating can be reduced, and the imaging effect caused by lens deformation can be reduced, thus helping to maintain good imaging quality of the optical lens.

[0079] According to the optical lens disclosed herein, the merging setting factor of the object-side surface of the blue glass lens is FbcR1, and the merging setting factor of the image-side surface of the blue glass lens is FbcR2, which can satisfy the following conditions: 4.00≤FbcR1; or 4.00≤FbcR2. By satisfying the merging setting factor on the object-side or image-side surface of the long-wavelength filtering lens, an optimal combination of blue glass and long-wavelength filtering coating can be achieved, which helps to improve the overall near-infrared light filtering effect of the optical lens. Alternatively, it can satisfy the following conditions: 6.00≤FbcR1; or 6.00≤FbcR2. Alternatively, it can satisfy the following conditions: 8.00≤FbcR1; or 8.00≤FbcR2. Alternatively, it can satisfy the following conditions: 12.00≤FbcR1; or 12.00≤FbcR2. Alternatively, it can satisfy the following conditions: 16.00≤FbcR1; or 16.00≤FbcR2. Alternatively, it may satisfy the following conditions: 40.00≤FbcR1≤∞; or 40.00≤FbcR2≤∞. Alternatively, it may satisfy the following conditions: 80.00≤FbcR1≤800.00; or 80.00≤FbcR2≤800.00.

[0080] For the optical lens according to the present disclosure, the total number of layers of the long wavelength filtering coating is tLs, which can satisfy the following conditions: tLs ≤ 80. By combining the use of a blue glass lens and the long wavelength filtering coating, the number of layers of the filtering coating can be reduced, which helps to streamline the manufacturing process. Or, it can satisfy the following conditions: 0 < tLs ≤ 70. Or, it can satisfy the following conditions: 20 ≤ tLs ≤ 60. Or, it can satisfy the following conditions: 30 ≤ tLs ≤ 50.

[0081] For the optical lens according to the present disclosure, the total thickness of the long wavelength filtering coating is tTk, which can satisfy the following conditions: 3000nm ≤ tTk ≤ 10000nm. By combining the use of a blue glass lens and the long wavelength filtering coating, the set thickness of the filtering coating can be reduced, which helps to reduce the manufacturing cost. Or, it can satisfy the following conditions: 4500nm ≤ tTk ≤ 9000nm. Or, it can satisfy the following conditions: 4500nm ≤ tTk ≤ 8000nm. Or, it can satisfy the following conditions: 5000nm ≤ tTk ≤ 7000nm. Or, it can satisfy the following conditions: 5500nm ≤ tTk ≤ 6000nm.

[0082] For the optical lens according to the present disclosure, the total thickness of the high refractive index film layer is HtTk, and the total thickness of the low refractive index film layer is LtTk, which can satisfy the following conditions: 1.00 ≤ LtTk / HtTk ≤ 2.00. By designing a specific ratio of the total thickness of the low refractive index film layer to the total thickness of the high refractive index film layer, the near-infrared light filtering ability of the long wavelength filtering lens can be improved, which helps to improve the near-infrared light filtering effect of the optical lens. Or, it can satisfy the following conditions: 1.20 ≤ LtTk / HtTk ≤ 1.90. Or, it can satisfy the following conditions: 1.30 ≤ LtTk / HtTk ≤ 1.80. Or, it can satisfy the following conditions: 1.50 ≤ LtTk / HtTk ≤ 1.70. Or, it can satisfy the following conditions: 1.55 ≤ LtTk / HtTk ≤ 1.65.

[0083] For the optical lens according to the present disclosure, the refractive index of the high refractive index film layer is NH, and the refractive index of the low refractive index film layer is NL, which can satisfy the following conditions: 0.50 ≤ NH - NL. By designing the refractive index difference between the high refractive index film layer and the low refractive index film layer, it helps the long wavelength filtering lens to produce the best near-infrared light filtering effect. Or, it can satisfy the following conditions: 0.60 ≤ NH - NL. Or, it can satisfy the following conditions: 0.70 ≤ NH - NL ≤ 2.00. Or, it can satisfy the following conditions: 0.80 ≤ NH - NL ≤ 1.50. Or, it can satisfy the following conditions: 0.85 ≤ NH - NL ≤ 1.00.

[0084] For an optical lens according to the present disclosure, the distance on the optical axis from the object-side surface of the first optical lens to the image-side surface of the last optical lens is TD, and the maximum image height of the optical lens is ImgH, which can satisfy the following conditions: 0 < TD / ImgH ≤ 2.00. By designing a specific ratio of the lens group length to the maximum image height, reducing the lens group length per unit height helps to balance the space utilization efficiency and imaging quality of the optical lens. Alternatively, it can satisfy the following conditions: TD / ImgH ≤ 15.00. Alternatively, it can satisfy the following conditions: TD / ImgH ≤ 10.00. Alternatively, it can satisfy the following conditions: 0.80 ≤ TD / ImgH ≤ 1.20. Alternatively, it can satisfy the following conditions: 0.50 ≤ TD / ImgH ≤ 5.00. Alternatively, it can satisfy the following conditions: 2.00 ≤ TD / ImgH ≤ 3.00. Alternatively, it can satisfy the following conditions: 3.00 ≤ TD / ImgH ≤ 8.00. Alternatively, it can satisfy the following conditions: 4.50 ≤ TD / ImgH ≤ 5.50.

[0085] For an optical lens according to the present disclosure, the total focal length of the optical lens is F, and the maximum image height of the optical lens is ImgH, which can satisfy the following conditions: 2.50 ≤ F / ImgH ≤ 4.00. By designing a specific ratio of the total focal length of the optical lens to the maximum image height, generating an appropriate focusing distance and improving the focusing effect of light helps to improve the imaging quality. Alternatively, it can satisfy the following conditions: F / ImgH ≤ 10.00. Alternatively, it can satisfy the following conditions: 0 < F / ImgH ≤ 5.00. Alternatively, it can satisfy the following conditions: 0.80 ≤ F / ImgH ≤ 2.50. Alternatively, it can satisfy the following conditions: 1.10 ≤ F / ImgH ≤ 1.20. Alternatively, it can satisfy the following conditions: 3.30 ≤ F / ImgH ≤ 3.40. Alternatively, it can satisfy the following conditions: 0 < F / ImgH ≤ 0.80. Alternatively, it can satisfy the following conditions: 0.55 ≤ F / ImgH ≤ 0.60.

[0086] For the optical lens according to the present disclosure, the total focal length of the optical lens is F, and the distance on the optical axis from the object-side surface of the first optical lens to the image-side surface of the last optical lens is TD, which can satisfy the following condition: 0 < F / TD ≤ 0.80. By designing a specific ratio of the focal length to the lens group length, the focal length and the optical path can be balanced, ensuring the best focusing effect within the lens group length, which helps to optimize the focusing effect. Alternatively, it can satisfy the following condition: F / TD ≤ 5.00. Alternatively, it can satisfy the following condition: F / TD ≤ 4.00. Alternatively, it can satisfy the following condition: 0.80 ≤ F / TD ≤ 1.20. Alternatively, it can satisfy the following condition: 0.90 ≤ F / TD ≤ 1.10. Alternatively, it can satisfy the following condition: 1.20 ≤ F / TD ≤ 4.50. Alternatively, it can satisfy the following condition: 3.50 ≤ F / TD ≤ 4.00. Alternatively, it can satisfy the following condition: 0.10 ≤ F / TD ≤ 0.15.

[0087] For the optical lens according to the present disclosure, the maximum viewing angle of the optical lens is FOV, which satisfies the following condition: 0 degrees < FOV ≤ 50.00 degrees. The filtering coating has a poor filtering effect on incident near-infrared light at large angles. By restricting the maximum viewing angle of the optical lens, it is possible to prevent light from incident on the filtering lens at large angles, which helps to improve the near-infrared light filtering effect of the filtering lens. Alternatively, it can satisfy the following condition: FOV ≤ 60.00 degrees. Alternatively, it can satisfy the following condition: 10.00 degrees ≤ FOV ≤ 40.00 degrees. Alternatively, it can satisfy the following condition: 30.00 degrees ≤ FOV ≤ 35.00 degrees.

[0088] The optical lens according to the present disclosure may include various optical elements with visible light penetration characteristics such as optical lenses, cover glasses, blue glasses, micro lenses, and filter elements (filters, color filters).

[0089] For the object side and the image side of the optical lens according to the present disclosure, the image side is the side on the optical axis close to the photosensitive element, and the object side is the side on the optical axis far from the photosensitive element.

[0090] The optical lenses described in this disclosure may include at least one, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, at least nine, and at least ten optical lenses; the object-side to image-side of the optical lens may consist of a first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth optical lens, and so on. The aforementioned optical lenses may include blue glass lenses, long-wavelength absorbing lenses, and long-wavelength filtering lenses. An optical lens may include one or more blue glass lenses, long-wavelength absorbing lenses, or long-wavelength filtering lenses. For example, an optical lens may include at least one blue glass lens, at least two blue glass lenses, at least three blue glass lenses, at least four blue glass lenses, or at least five blue glass lenses; an optical lens may include at least one long-wavelength absorbing lens, at least two long-wavelength absorbing lenses, at least three long-wavelength absorbing lenses, at least four long-wavelength absorbing lenses, or at least five long-wavelength absorbing lenses; an optical lens may include at least one long-wavelength filtering lens, at least two long-wavelength filtering lenses, at least three long-wavelength filtering lenses, at least four long-wavelength filtering lenses, or at least five long-wavelength filtering lenses.

[0091] The optical lens described herein has an object-side surface and an image-side surface. The surface shape of the object-side surface of the optical lens can be spherical or aspherical, and the surface shape of the image-side surface of the optical lens can be spherical or aspherical.

[0092] The optical lenses described in this disclosure can be made of plastic or glass. Blue glass lenses can be formed by adding blue glass material to glass lenses, or long-wavelength absorbing materials can be added to plastic lenses to form long-wavelength absorbing lenses. When the optical lens is made of plastic, it can contain polyacrylic acid (PMMA), polystyrene (PS), polycarbonate (PC), cyclic olefin polymers (COP), cyclic olefin copolymers (COC), polyetherimide (PEI), and polyester resins (OKP-4 or OKP-4HT).

[0093] The optical path length of the optical lens described in this disclosure refers to the straight-line distance between the principal ray (R1 ray) of the field of view and the point of incidence and exit of the optical lens. The field of view for calculating the optical path length is obtained by dividing 0F to 1.0F (1.0 field of view) into 50 equal parts: 0F, 0.02F, 0.04F, 0.06F, 0.08F, 0.10F, 0.12F, 0.14F, 0.16F, 0.18F, 0.20F, 0.22F, 0.24F, 0.26F, 0.28F, 0.30F, 0.32F, 0.34F, 0.36F, and 0.3... 51 fields of view including 8F, 0.40F, 0.42F, 0.44F, 0.46F, 0.48F, 0.50F, 0.52F, 0.54F, 0.56F, 0.58F, 0.60F, 0.62F, 0.64F, 0.66F, 0.68F, 0.70F, 0.72F, 0.74F, 0.76F, 0.78F, 0.80F, 0.82F, 0.84F, 0.86F, 0.88F, 0.90F, 0.92F, 0.94F, 0.96F, 0.98F, and 1.0F.

[0094] The blue glass lens described in this disclosure refers to an optical lens incorporating blue glass material. This blue glass material primarily absorbs light wavelengths above 600nm. The blue glass lens can be the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, or tenth optical lens in an optical lens. The blue glass material may contain phosphorus ions (P...). 5+ or P 3+ ), aluminum ions (Al) 3+ ), antimony ions (Sb) 5+ or Sb 3+ ), copper ions (Cu) 2+ ), magnesium ions (Mg 2+ ), calcium ions (Ca 2+ ), Strontium ion (Sr) 2+ ), barium ions (Ba 2+ ), zinc ions (Zn) 2+ Lithium ion (Li) + Sodium ions (Na) + ), potassium ions (K) + ), phosphate (PO4) 3- ) or fluoride ions (F - ), etc., or the composition of blue glass material may include inorganic compounds composed of the aforementioned ions.

[0095] The long-wavelength absorbing lens of the optical lens described in this disclosure refers to an optical lens in which long-wavelength absorbing materials are added to the material. The long-wavelength absorbing materials are mainly organic compounds that can absorb light with wavelengths above 600nm. The long-wavelength absorbing lens can be the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth optical lenses in the optical lens.

[0096] The long-wavelength filtering lens described in this disclosure refers to an optical lens with a long-wavelength filtering coating on its object-side or image-side surface. This long-wavelength filtering coating primarily reduces the transmittance of light with wavelengths above 600 nm. The long-wavelength filtering lens can be one of the following optical lenses: the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, or tenth optical lens.

[0097] The long-wavelength filtering coating described herein can be disposed on at least one of the object-side and image-side surfaces of any optical lens in an optical lens. Specifically, it can be disposed on the object-side and image-side surfaces of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth optical lenses. The long-wavelength filtering coating can further be disposed on the object-side or image-side surface of a blue glass lens; therefore, the long-wavelength filtering lens and the blue glass lens can be the same lens. Similarly, the long-wavelength filtering coating can further be disposed on the object-side or image-side surface of a long-wavelength absorbing lens; therefore, the long-wavelength filtering lens and the long-wavelength absorbing lens can be the same lens. Long-wavelength filtering coatings can be simultaneously applied to both the object-side and image-side surfaces of an optical lens. They can also be applied simultaneously to the object-side and image-side surfaces of different optical lenses. Furthermore, the number and thickness of the layers on the object-side and image-side surfaces are interchangeable. Optical lenses with long-wavelength filtering coatings applied to different sides exhibit less deformation compared to those with long-wavelength filtering coatings applied to the same side. For example, long-wavelength filtering coatings can be applied to the image-side surface of a first optical lens and the object-side surface of a second optical lens; long-wavelength filtering coatings can be applied to the object-side and image-side surfaces of a second optical lens; long-wavelength filtering coatings can be applied to the object-side and image-side surfaces of a third optical lens and a fourth optical lens. The number of optical lenses with long-wavelength filtering coatings can be one, two, three, four, five, six, seven, eight, nine, or ten. Long-wavelength filtering coatings applied to the object-side and image-side surfaces of optical lenses refer to the coating being applied directly or indirectly to these surfaces. Indirect application means that other types of coatings (such as anti-reflective coatings) or other materials (such as coatings or other materials) exist between the long-wavelength filtering coating and the optical lens surface. The long-wavelength filtering coating can also be applied to the object-side and image-side surfaces of other optical elements, such as flat glass, protective glass, plastic sheets, glass sheets, or reflective elements. Filtering coatings on the surfaces of other elements can enhance the filtering effect of insufficient wavelengths. Therefore, coatings applied to the surface of optical lenses can be responsible for filtering specific wavelength regions, reducing the number and thickness of coating layers.

[0098] The long-wavelength filtering coating described in this disclosure comprises at least one layer. The first layer of the long-wavelength filtering coating can be located on the side closest to the optical lens surface, or it can be located on the side furthest from the optical lens surface. The long-wavelength filtering coating is composed of alternating stacked high-refractive-index layers and low-refractive-index layers. A high-refractive-index layer is defined as having a higher refractive index than the preceding layer, and a low-refractive-index layer is defined as having a lower refractive index than the preceding layer. The first layer is defined as high-refractive-index or low-refractive-index layer by comparing it to the second layer. For example, if the refractive index of the first layer is greater than that of the second layer, the first layer is a high-refractive-index layer; if the refractive index of the first layer is less than that of the second layer, the first layer is a low-refractive-index layer. The total number of layers in the long-wavelength filtering coating can be the sum of the number of layers on the object-side and image-side surfaces of each optical lens. The total thickness of the long-wavelength filtering coating can be the sum of the thicknesses of the long-wavelength filtering coating on the object-side and image-side surfaces of each optical lens. Since the long-wavelength filtering coating can be applied to the object-side and image-side surfaces of different optical lenses, the total number of long-wavelength filtering coating layers and the total thickness need to be calculated for all optical lenses that actually have long-wavelength filtering capabilities. The film material (wavelength = 587.6 nm) may include magnesium fluoride (MgF2, 1.3777), silicon dioxide (SiO2, 1.4585), thorium fluoride (ThF4, 1.5125), silicon monoxide (SiO, 1.55), cerium fluoride (CeF3, 1.63), aluminum oxide (Al2O3, 1.7682), yttrium oxide (Y2O3, 1.79), hafnium dioxide (HfO2, 1.8935), zinc oxide (ZnO, 1.9269), and scandium oxide (Sc2O3, 1.9872). The following materials may be used: aluminum nitride (AlN, 2.0294), silicon nitride (Si3N4, 2.0381), tantalum pentoxide (Ta2O5, 2.1306), zirconium dioxide (ZrO2, 2.1588), zinc sulfide (ZnS, 2.2719), niobium pentoxide (Nb2O5, 2.3403), titanium dioxide (TiO2, 2.6142), and titanium nitride (TiN, 3.1307), or a mixture of MgF2-SiO2 (where the content ratio is such as [SiO2]>[MgF2]).

[0099] The manufacturing technology for the long-wavelength filtration coating described in this disclosure can utilize either liquid-phase coating or vapor-phase coating. Liquid-phase coating methods include acid etching, solution deposition, electroplating, anodic oxidation, sol-gel methods, LB films, or liquid-phase epitaxy. Vapor-phase coating methods include chemical vapor deposition or physical vapor deposition. If the curvature of the coated lens varies significantly, atomic layer deposition (ALD) is required to achieve optimal film uniformity, ensuring the integrity of the long-wavelength filtration coating's effectiveness.

[0100] The anti-reflective coating described in this disclosure can be applied to the object-side or image-side surface of an optical lens. This provides excellent anti-reflective performance, reduces severe reflections in the peripheral area of ​​the lens caused by large-angle incident light, effectively improves the light transmittance of the imaging optical lens, and achieves the best anti-reflective effect.

[0101] The antireflective coating described in this disclosure comprises at least one layer, such as alternating stacks of high-refractive-index and low-refractive-index layers, or a combination of high-refractive-index layers and subwavelength microstructures, or a combination of low-refractive-index layers and subwavelength microstructures, or a combination of high-refractive-index layers, low-refractive-index layers, and subwavelength microstructures. The antireflective coating may have a long-wavelength filtering coating on its inner side (adjacent to the substrate). The antireflective coating may have subwavelength microstructures on its outer side (adjacent to air), and the material may be a metal oxide, such as aluminum oxide (Al2O3). The subwavelength microstructures of the antireflective coating contain multiple pores, and the size of the pores adjacent to the outer side of the antireflective coating is larger than the size of the pores adjacent to the inner side of the antireflective coating.

[0102] The optimal coating surface shape of the optical lens described in this disclosure is determined based on the horizontal displacement of the optical lens at its maximum effective diameter, the thickness of the optical lens along the optical axis, and the radius of curvature of the optical lens along the optical axis. The field of view from 0F to 1.0F (1.0 field of view) is divided into 50 equal parts, resulting in the following values: 0F, 0.02F, 0.04F, 0.06F, 0.08F, 0.10F, 0.12F, 0.14F, 0.16F, 0.18F, 0.20F, 0.22F, 0.24F, 0.26F, 0.28F, 0.30F, 0.32F, 0.34F, 0.36F, 0.38F, 0.40F, 0.42F, 0.44F, 0.46F, 0.48F, 0.50F, 0.52F, 0.54F, 0.56F, 0... The optical lens has 51 fields of view, including 0.58F, 0.60F, 0.62F, 0.64F, 0.66F, 0.68F, 0.70F, 0.72F, 0.74F, 0.76F, 0.78F, 0.80F, 0.82F, 0.84F, 0.86F, 0.88F, 0.90F, 0.92F, 0.94F, 0.96F, 0.98F, and 1.0F. The maximum effective diameter is the highest point through which all rays from the 51 fields of view pass. The direction of horizontal displacement refers to the direction of the optical axis through the optical lens. The horizontal displacement of the maximum effective diameter position refers to the horizontal displacement from the center of the optical lens to the position of the maximum effective diameter. The radius of curvature of the optical lens is calculated by taking two points on the optical lens: the target point and two points 1E-10mm above and below the target point in the direction perpendicular to the optical axis.

[0103] The transmittance of the optical lens described in this disclosure refers to the transmittance at a 0-degree angle of incidence, and the transmittance and average transmittance are calculated in 5nm increments. The wavelength at 50% transmittance of the optical lens refers to the wavelength at which the transmittance tends to decrease as the wavelength increases.

[0104] The optical lens correction technology disclosed herein addresses the issue that plastic lenses are prone to significant surface shape changes due to high temperatures, particularly noticeable when the lens thickness is small. The more layers of coating a lens have, the more pronounced the temperature effect on surface shape accuracy becomes. Lens correction technology effectively solves the temperature effect problem during plastic surface coating, helping to maintain the integrity of the lens coating and the high precision of the plastic lens, making it a key technology for achieving high-quality imaging lenses. Lens correction technologies include, but are not limited to, methods such as moldflow analysis, curve fitting functions, or wavefront error methods. Moldflow analysis identifies the three-dimensional contour nodes of the lens surface contracting along the Z-axis, converts them into aspherical curves, compares the differences with the original curve, and calculates the correction value while considering material shrinkage and surface deformation trends. Curve fitting functions measure the surface contour error of the component, fit a function to a curve, and then use an optimization algorithm to approximate the fitted curve to the measurement points to obtain the correction value. Functions include exponential and polynomial functions, and algorithms include Gauss-Newton's method, simplex algorithm, and Steepest descent method. The wavefront error method measures the wavefront error (imaging error) data of the optical system using an interferometer, comprehensively analyzes the wavefront error generated during manufacturing and assembly based on the original design wavefront error, and then optimizes it using optical software to obtain the correction value.

[0105] The glass plate of the optical lens described in this disclosure can be disposed on the object side of the electronic photosensitive element. At least one or both surfaces of the object-side and image-side surfaces of the glass plate can be coated with an anti-reflective coating. An air layer may or may not exist between the glass plate and the electronic photosensitive element. When the optical lens is designed as an optical system with an air layer between the glass plate and the electronic photosensitive element, at least one or both surfaces of the object-side and image-side surfaces of the glass plate can be coated with an anti-reflective coating. When the optical lens is designed as an optical system without an air layer between the glass plate and the electronic photosensitive element, an anti-reflective coating can be formed on the object-side surface of the glass plate. At least one or both surfaces of the object-side and image-side surfaces of the glass plate can have a long-wavelength absorbing material, which is mixed with a polymer and then deposited on the surface of the glass plate. When the optical lens is designed as an optical system with an air layer between the glass plate and the electronic photosensitive element, at least one or both surfaces of the object-side and image-side surfaces of the glass plate can be designed with a long-wavelength absorbing material film. When the optical lens is designed as an optical system without an air layer between the glass plate and the electronic photosensitive element, a long-wavelength absorbing material film can be designed on the object-side surface of the glass plate, and the material of the glass plate can be designed to have a long-wavelength absorbing material.

[0106] The microlens of the optical lens described herein can be disposed on the object side of the electronic photosensitive element. The object-side surface and image-side surface of the microlens can have a long-wavelength absorbing material. The long-wavelength absorbing material is mixed with a polymer and disposed on the surface of the microlens, or the polymer is disposed between the microlens and the color filter as a connecting layer, or the long-wavelength absorbing material is mixed and disposed in the color filter. It can be further selected to be disposed in the red filter portion, the green filter portion, and the blue filter portion.

[0107] The optical lens configuration described in this disclosure allows the optical element to be mounted on the surface of the electronic photosensitive element. Combined with the application of a long-wavelength filtering coating on the surface of the optical lens, this configuration helps reduce the angle at which the main ray at the maximum image height field of view incidents on the electronic photosensitive element, thus reducing the back focal length and overall length. To ensure that the refractive indices of the optical element and the electronic photosensitive element are close to or the same, a polymer can be placed between them. This allows light to pass directly through the interface between the glass plate and the electronic photosensitive element without refraction, avoiding further refraction and thus preventing a larger incident angle.

[0108] The various technical features in the optical lens disclosed herein can be combined and configured to achieve the corresponding effects.

[0109] Another embodiment of this disclosure provides an electronic device including an optical lens as described above.

[0110] The electronic devices described in this disclosure may include cameras, camcorders, video lenses, mobile phones, tablet computers, laptop computers, handheld game consoles, home game consoles, automotive devices, vehicle devices, AR glasses, VR glasses, AR head-mounted displays, VR head-mounted displays, etc.

[0111] <First Comparative Example>

[0112] The optical lens of the first comparative example includes at least four optical lenses, and the at least four optical lenses include a first optical lens, a second optical lens, a third optical lens and a fourth optical lens from the object side to the image side of the optical lens.

[0113] The optical lens of the first comparative example does not include a blue glass plate, a long-wavelength filtering plate, a blue glass lens, a long-wavelength absorbing lens, or a long-wavelength filtering lens for filtering out light.

[0114] Please refer to the following at the same time Figure 1 Compared with Table 1A, Figure 1 Table 1A shows the transmittance of the optical lens of the first comparative example in relation to wavelength, with the transmittance values ​​of the optical lens of the first comparative example at wavelengths from 400 nm to 1050 nm.

[0115]

[0116]

[0117]

[0118]

[0119]

[0120] Please refer to Table 1B, which presents the parameter values ​​of the optical lens of the first comparative example, where Wt50 is the wavelength of the optical lens at 50% transmittance, T6065 is the average transmittance of the optical lens at wavelengths from 600nm to 650nm, T6570 is the average transmittance of the optical lens at wavelengths from 650nm to 700nm, T70105 is the average transmittance of the optical lens at wavelengths from 700nm to 1050nm, T85 is the transmittance of the optical lens at wavelength 850nm, T94 is the transmittance of the optical lens at wavelength 940nm, and T105 is the transmittance of the optical lens at wavelength 1050nm.

[0121]

[0122] If the parameter definitions in the following comparative examples and embodiments are the same as those in Table 1B, they will not be repeated.

[0123] The optical lens of the second comparative example includes at least four optical lenses, and the at least four optical lenses include a first optical lens, a second optical lens, a third optical lens and a fourth optical lens from the object side to the image side of the optical lens.

[0124] <Second Comparative Example>

[0125] The optical lens of the second comparative example includes a blue glass plate and a long-wavelength filtering plate, but does not include a blue glass lens, a long-wavelength absorbing lens, or a long-wavelength filtering lens.

[0126] <First Embodiment>

[0127] Please refer to Figure 2 This is a schematic diagram illustrating an optical lens 100 according to a first embodiment. The optical lens 100 of the first embodiment includes at least four optical lenses, which include a first optical lens, a second optical lens, a third optical lens, and a fourth optical lens from the object side 101 to the image side 102 of the optical lens 100. The optical lens 100 of the first embodiment also includes a blue glass lens and a long-wavelength absorption lens.

[0128] Please refer to the following at the same time Figure 3 Compared with Table 2A, Figure 3 Table 2A shows the relationship between transmittance and wavelength for the optical lens 100 of the first embodiment. It presents the transmittance values ​​of the optical lens 100 of the first embodiment at wavelengths from 400 nm to 1050 nm.

[0129]

[0130]

[0131]

[0132]

[0133]

[0134]

[0135] Please refer to Table 2B, which presents the parameter values ​​of the optical lens 100 of the first embodiment.

[0136]

[0137] <Second Embodiment>

[0138] The optical lens of the second embodiment includes at least four optical lenses, which include a first optical lens, a second optical lens, a third optical lens and a fourth optical lens from the object side to the image side of the optical lens. The optical lens of the second embodiment also includes a blue glass lens, a long-wavelength absorption lens and a long-wavelength filtering lens.

[0139] The long-wavelength filtering lens includes a long-wavelength filtering coating, which can be disposed on the object-side surface or the image-side surface of the long-wavelength filtering lens. The long-wavelength filtering coating includes at least one low-refractive-index film layer and at least one high-refractive-index film layer, and the long-wavelength filtering coating is composed of alternating stacks of high-refractive-index film layers and low-refractive-index film layers.

[0140] Please refer to the following at the same time Figure 4 Compared with Table 3A, Figure 4 Table 3A shows the relationship between the transmittance and wavelength of the optical lens of the second embodiment. It presents the transmittance values ​​of the optical lens of the second embodiment at wavelengths from 400 nm to 1050 nm.

[0141]

[0142]

[0143]

[0144]

[0145]

[0146] Please refer to Table 3B, which presents the parameter values ​​of the optical lens of the second embodiment.

[0147]

[0148] Please refer to Table 3C, which shows the details of the long-wavelength filtering coating of the long-wavelength filtering lens of the optical lens of the second embodiment, where tLs is the total number of long-wavelength filtering coating layers, tTk is the total thickness of the long-wavelength filtering coating, LtTk is the total thickness of the high-refractive-index film layer, HtTk is the total thickness of the low-refractive-index film layer, NL is the refractive index of the low-refractive-index film layer, and NH is the refractive index of the high-refractive-index film layer.

[0149]

[0150]

[0151] Please refer to Table 3D, which shows the details of each layer of the long-wavelength filtering coating of the long-wavelength filtering lens in the second embodiment, where "H" represents a high refractive index film layer and "L" represents a low refractive index film layer.

[0152]

[0153]

[0154] The following is a detailed description of the optical lenses proposed in the first to thirteenth designs, and the optical lenses in the first to thirteenth designs are optical design states that can be applied to the optical lenses of the first embodiment and the optical lenses of the second embodiment.

[0155] <First Design>

[0156] The first optical lens design comprises five optical lenses, arranged sequentially from the object side to the image side as the first, second, third, fourth, and fifth optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0157] The first optical lens is made of plastic, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic, and the third optical lens is a long-wavelength absorbing lens; the fourth optical lens is made of plastic; and the fifth optical lens is made of plastic.

[0158] In addition, the material arrangement of the optical lenses in the first design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0159] Please refer to Table 4, which presents the parameter details of the optical lens of the first design. L1 to L5 represent the first to fifth optical lenses, respectively. CPmax is the maximum optical path length of the principal ray across the entire field of view through the optical lens; CPmin is the minimum optical path length of the principal ray across the entire field of view through the optical lens; CPavg is the average optical path length of the principal ray across the entire field of view through the optical lens; CPst is the standard deviation of the optical path length of the principal ray across the entire field of view through the optical lens; N is the refractive index of the optical lens (wavelength = 587.6 nm); V is the Abbe number of the optical lens (wavelength = 587.6 nm); CT is the center thickness of the optical lens on the optical axis; R1 is the radius of curvature of the object-side surface of the optical lens on the optical axis; YR1 is the maximum effective diameter of the object-side surface of the optical lens; SAGR1 is the horizontal displacement of the maximum effective diameter of the object-side surface of the optical lens; R2 is the radius of curvature of the image-side surface of the optical lens on the optical axis; YR2 is the maximum effective diameter of the image-side surface of the optical lens; SAGR2 is the horizontal displacement of the maximum effective diameter of the image-side surface of the optical lens; F is the optical... The total focal length of the lens, FOV is the maximum angle of view of the optical lens, TD is the distance on the optical axis from the object-side surface of the first optical lens to the image-side surface of the last optical lens, ImgH is the maximum image height of the optical lens, Fb1 is the first setting factor of the blue glass lens, Fb2 is the second setting factor of the blue glass lens, Fb3 is the third setting factor of the blue glass lens, Fb4 is the fourth setting factor of the blue glass lens, Fb5 is the fifth setting factor of the blue glass lens, FB is the comprehensive setting factor of the blue glass lens, FA is the main setting factor of the long-wavelength absorbing lens, Fam is the material setting factor of the long-wavelength absorbing lens, CTB is the center thickness of the blue glass lens on the optical axis, CTA is the center thickness of the long-wavelength absorbing lens on the optical axis, FcR1 is the coating setting factor of the object-side surface of the long-wavelength filter, FcR2 is the coating setting factor of the image-side surface of the long-wavelength filter, FbcR1 is the combined setting factor of the object-side surface of the blue glass lens, and FbcR2 is the combined setting factor of the image-side surface of the blue glass lens.

[0160]

[0161]

[0162] In the first design, the blue glass lens used in the optical lens is only an illustrative illustration. The determination of the placement of the blue glass lens is based on the blue glass configuration evaluation. "b" in Table 4 indicates compliance with the blue glass configuration evaluation. If an optical lens meets the blue glass configuration evaluation, it means that the optical lens meets the requirement of "0.05≤Fb5≤0.40", and it can be set as a blue glass lens. In the first design, the long-wavelength absorbing lens used in the optical lens is only an illustrative illustration. The determination of the placement of the long-wavelength absorbing lens is based on the long-wavelength absorption configuration evaluation. "a" in Table 4 indicates compliance with the long-wavelength absorption configuration evaluation. If an optical lens meets the long-wavelength absorption configuration evaluation, it means that the optical lens meets the requirement of "0.50≤FA", and it can be set as a long-wavelength absorbing lens. In the first design, the long-wavelength filtering lens set in the optical lens is only disclosed as an example. The setting of the long-wavelength filtering lens is determined based on the long-wavelength filtering configuration evaluation. "c" in Table 4 indicates that it meets the long-wavelength filtering configuration evaluation. If the optical lens meets the long-wavelength filtering configuration evaluation, it means that the object-side surface of the optical lens meets "5.00≤FcR1" or the image-side surface of the optical lens meets "5.00≤FcR2", and it can be set as a long-wavelength filtering lens.

[0163] If the parameter definitions in the following embodiments are the same as those in Table 4, they will not be repeated. Furthermore, the blue glass lens, long-wavelength absorption lens, and long-wavelength filtering lens configured in the optical lenses of the following embodiments are only illustrative disclosures. Their configuration is based on the evaluation of the blue glass configuration, the evaluation of the long-wavelength absorption configuration, and the evaluation of the long-wavelength filtering configuration. The descriptions of the evaluation of the blue glass configuration, the evaluation of the long-wavelength absorption configuration, and the evaluation of the long-wavelength filtering configuration are also the same as those in the first design, and will not be repeated hereafter.

[0164] <Second Design>

[0165] The second optical lens design comprises six optical lenses, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, and sixth optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0166] The first optical lens is made of plastic and is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic; the fifth optical lens is made of plastic and is a long-wavelength absorbing lens; and the sixth optical lens is made of plastic.

[0167] In addition, the material arrangement of the optical lenses in the second design is only illustrative. To accommodate the use of blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0168] Please refer to Table 5, which presents the parameter details of the optical lens of the second design, where L1 to L6 represent the first to sixth optical lenses, respectively.

[0169]

[0170]

[0171] <Third Design>

[0172] The third optical lens design comprises seven optical lenses, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, and seventh optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0173] The first optical lens is made of glass, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic, and the fourth optical lens is a long-wavelength absorbing lens; the fifth optical lens is made of plastic; the sixth optical lens is made of plastic; and the seventh optical lens is made of plastic.

[0174] In addition, the material arrangement of the optical lenses in the third design is only for illustrative purposes. To accommodate the use of blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced or adjusted with plastic or glass.

[0175] Please refer to Table 6, which presents the parameter details of the optical lens of the third design, where L1 to L7 represent the first to seventh optical lenses, respectively.

[0176]

[0177]

[0178]

[0179] <Fourth Design>

[0180] The fourth optical lens design comprises eight optical lenses, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, seventh, and eighth optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0181] The first optical lens is made of plastic, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic; the fifth optical lens is made of plastic, and the fifth optical lens is a long-wavelength absorbing lens; the sixth optical lens is made of plastic; the seventh optical lens is made of plastic; and the eighth optical lens is made of plastic.

[0182] In addition, the material arrangement of the optical lenses in the fourth design is only an illustrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0183] Please refer to Table 7, which presents the parameter details of the optical lens of the fourth design, where L1 to L8 represent the first to eighth optical lenses, respectively.

[0184]

[0185]

[0186]

[0187] <The Fifth Design>

[0188] The fifth design of the optical lens comprises nine optical elements, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth optical elements. Each optical element has an object-side surface facing the object side and an image-side surface facing the image side.

[0189] The first optical lens is made of plastic, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic; the fifth optical lens is made of plastic, and the fifth optical lens is a long-wavelength absorbing lens; the sixth optical lens is made of plastic; the seventh optical lens is made of plastic; the eighth optical lens is made of plastic; and the ninth optical lens is made of plastic.

[0190] In addition, the material arrangement of the optical lenses in the fifth design is only an illustrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0191] Please refer to Table 8, which presents the parameter details of the optical lens of the fifth design, where L1 to L9 represent the first to ninth optical lenses, respectively.

[0192]

[0193]

[0194]

[0195]

[0196] <Sixth Design>

[0197] The sixth optical lens design comprises four optical lenses, arranged sequentially from the object side to the image side as the first, second, third, and fourth optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0198] The first optical lens is made of glass, and the first optical lens is a blue glass lens; the second optical lens is made of plastic, and the second optical lens is a long-wavelength filtering lens and a long-wavelength absorbing lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the third optical lens is made of plastic; and the fourth optical lens is made of plastic.

[0199] In addition, the material arrangement of the optical lenses in the sixth design is only an illustrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0200] Please refer to Table 9, which presents the parameter details of the optical lens of the sixth design, where L1 to L4 represent the first to fourth optical lenses, respectively.

[0201]

[0202]

[0203]

[0204] <The Seventh Design>

[0205] The seventh design's optical lens comprises six optical elements, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, and sixth optical elements. Each optical element has an object-side surface facing the object side and an image-side surface facing the image side.

[0206] The first optical lens is made of glass, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic, and the fourth optical lens is a long-wavelength absorbing lens; the fifth optical lens is made of plastic; and the sixth optical lens is made of plastic.

[0207] In addition, the material arrangement of the optical lenses in the seventh design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0208] Please refer to Table 10, which presents the parameter details of the optical lens of the seventh design, where L1 to L6 represent the first to sixth optical lenses, respectively.

[0209]

[0210]

[0211]

[0212] <Eighth Design>

[0213] The eighth design's optical lens comprises seven optical lenses, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, and seventh optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0214] The first optical lens is made of glass, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic, and the fourth optical lens is a long-wavelength absorbing lens; the fifth optical lens is made of plastic; the sixth optical lens is made of plastic; and the seventh optical lens is made of plastic.

[0215] In addition, the material arrangement of the optical lenses in the eighth design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0216] Please refer to Table 11, which presents the parameter details of the optical lens of the eighth design, where L1 to L7 represent the first to seventh optical lenses, respectively.

[0217]

[0218]

[0219]

[0220] <The Ninth Design>

[0221] The ninth design of the optical lens comprises eight optical lenses, which are arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, seventh, and eighth optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0222] The first optical lens is made of glass, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic; the fourth optical lens is made of plastic; the fifth optical lens is made of plastic, and the fifth optical lens is a long-wavelength absorbing lens; the sixth optical lens is made of plastic; the seventh optical lens is made of plastic; and the eighth optical lens is made of plastic.

[0223] In addition, the material arrangement of the optical lenses in the ninth design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0224] Please refer to Table 12, which presents the parameter details of the optical lens of the ninth design, where L1 to L8 represent the first to eighth optical lenses, respectively.

[0225]

[0226]

[0227]

[0228] <Tenth Design>

[0229] The tenth optical lens design comprises nine optical elements, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth optical elements. Each optical element has an object-side surface facing the object side and an image-side surface facing the image side.

[0230] The first optical lens is made of glass; the second optical lens is made of glass; the third optical lens is made of plastic; the fourth optical lens is made of plastic and is a long-wavelength absorption lens; the fifth optical lens is made of glass and is a combination of a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image-side surface of the long-wavelength filtering lens; the sixth optical lens is made of plastic; the seventh optical lens is made of plastic; the eighth optical lens is made of plastic; and the ninth optical lens is made of plastic.

[0231] In addition, the material arrangement of the optical lenses in the tenth design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0232] Please refer to Table 13, which presents the parameter details of the optical lens of the tenth design, where L1 to L9 represent the first to ninth optical lenses, respectively.

[0233]

[0234]

[0235]

[0236]

[0237] <Eleventh Design>

[0238] The eleventh optical lens design comprises seven optical elements, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, and seventh optical elements. Each optical element has an object-side surface facing the object side and an image-side surface facing the image side.

[0239] The first optical lens is made of glass; the second optical lens is made of glass and is a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image-side surface of the long-wavelength filtering lens; the third optical lens is made of glass and is a blue glass lens; the fourth optical lens is made of glass; the fifth optical lens is made of glass and is a long-wavelength absorbing lens; the sixth optical lens is made of glass; and the seventh optical lens is made of glass.

[0240] In addition, the material arrangement of the optical lenses in the eleventh design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0241] Please refer to Table 14, which presents the parameter details of the optical lens of the eleventh design, where L1 to L7 represent the first to seventh optical lenses, respectively.

[0242]

[0243]

[0244]

[0245] <Twelfth Design>

[0246] The twelfth design's optical lens comprises eight optical elements, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, seventh, and eighth optical elements. Each optical element has an object-side surface facing the object side and an image-side surface facing the image side.

[0247] The first optical lens is made of glass; the second optical lens is made of glass; the third optical lens is made of glass; the fourth optical lens is made of glass; the fifth optical lens is made of glass, and the fifth optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the object-side surface of the long-wavelength filtering lens; the sixth optical lens is made of glass, and the sixth optical lens is a long-wavelength absorbing lens; the seventh optical lens is made of glass; and the eighth optical lens is made of glass.

[0248] In addition, the material arrangement of the optical lenses in the twelfth design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0249] Please refer to Table 15, which presents the parameter details of the optical lens of the twelfth design, where L1 to L8 represent the first to eighth optical lenses, respectively.

[0250]

[0251]

[0252]

[0253] <The Thirteenth Design>

[0254] The thirteenth design comprises seven optical lenses, arranged sequentially from the object side to the image side as the first, second, third, fourth, fifth, sixth, and seventh optical lenses. Each optical lens has an object-side surface facing the object side and an image-side surface facing the image side.

[0255] The first optical lens is made of glass, and the first optical lens is a blue glass lens and a long-wavelength filtering lens, wherein the long-wavelength filtering lens has a long-wavelength filtering coating, and the long-wavelength filtering coating is disposed on the image side surface of the long-wavelength filtering lens; the second optical lens is made of plastic; the third optical lens is made of plastic, and the third optical lens is a long-wavelength absorbing lens; the fourth optical lens is made of plastic; the fifth optical lens is made of plastic; the sixth optical lens is made of plastic; and the seventh optical lens is made of plastic.

[0256] In addition, the material arrangement of the optical lenses in the thirteenth design is only a demonstrative disclosure. To meet the needs of using blue glass and long-wavelength absorbing materials, the material of the optical lenses can be replaced and adjusted with plastic or glass.

[0257] Please refer to Table 16, which presents the parameter details of the optical lens of the thirteenth design, where L1 to L7 represent the first to seventh optical lenses, respectively.

[0258]

[0259]

[0260]

[0261] <Third Embodiment>

[0262] Please refer to Figure 5 This is a schematic diagram illustrating an electronic device 200 according to a third embodiment. The third embodiment provides an electronic device 200 including an optical lens 210. The electronic device 200 is a mobile phone, and the optical lens 210 may be the optical lens 100 of the first embodiment or the optical lens of the second embodiment.

[0263] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art may make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An optical lens characterized in that, Comprising: at least four optical lenses, comprising a first optical lens, a second optical lens, a third optical lens, and a fourth optical lens from an object side to an image side of the optical lens; wherein the at least four optical lenses comprise a blue glass lens, a first setting factor of the blue glass lens is Fb1, a fifth setting factor of the blue glass lens is Fb5, and the following conditions are met: Fb1≤1.50; and 0.08≤Fb5≤0.

30.

2. The optical lens of claim 1, wherein, a second setting factor of the blue glass lens is Fb2, and the following condition is met: Fb2≤0.

30.

3. The optical lens of claim 1, wherein, a third setting factor of the blue glass lens is Fb3, and the following condition is met: 0.50≤Fb3≤2.

00.

4. The optical lens of claim 1, wherein, a fourth setting factor of the blue glass lens is Fb4, and the following condition is met: Fb4≤0.

10.

5. The optical lens of claim 1, wherein, an Abbe number of each of the optical lenses is V, and the following condition is met: 20.00≤V。 6. The optical lens of claim 1, wherein, a comprehensive setting factor of the blue glass lens is FB, and the following condition is met: 0<FB.

7. The optical lens of claim 1, wherein, a wavelength of the optical lens at 50% transmittance is Wt50, and the following condition is met: 600nm≤Wt50≤700nm.

8. The optical lens of claim 1, wherein, the at least four optical lenses comprise a long-wavelength absorption lens.

9. The optical lens of claim 8, wherein, a main setting factor of the long-wavelength absorption lens is FA, and the following condition is met: 0.50≤FA.

10. The optical lens of claim 9, wherein, a material setting factor of the long-wavelength absorption lens is Fam, and the following condition is met: 20.00≤Fam≤50.

00.

11. The optical lens of claim 8, wherein, a central thickness of the blue glass lens on an optical axis is CTB, and a central thickness of the long-wavelength absorption lens on the optical axis is CTA, and the following condition is met: 1.00≤CTB / CTA.

12. The optical lens of claim 8, wherein, an average transmittance of the optical lens at wavelengths of 600nm to 650nm is T6065, and the following condition is met: T6065≤60.00％。 13. The optical lens of claim 8, wherein, an average transmittance of the optical lens at wavelengths of 650nm to 700nm is T6570, and the following condition is met: T6570≤30.00％。 14. The optical lens of claim 8, wherein, an average transmittance of the optical lens at wavelengths of 700nm to 1050nm is T70105, and the following condition is met: T70105≤10.00％。 15. The optical lens of claim 8, wherein, a transmittance of the optical lens at a wavelength of 850nm is T85, and the following condition is met: T85≤10.00％。 16. The optical lens of claim 8, wherein, a transmittance of the optical lens at a wavelength of 940nm is T94, and the following condition is met: T94≤10.00％。 17. The optical lens of claim 8, wherein, a transmittance of the optical lens at a wavelength of 1050nm is T105, and the following condition is met: T105≤10.00％。 18. The optical lens of claim 1, wherein: the at least four optical lenses comprise a long-wavelength filter lens, the long-wavelength filter lens comprises a long-wavelength filter coating; and the long-wavelength filter coating comprises at least one low-refractive-index film layer and at least one high-refractive-index film layer, and the long-wavelength filter coating is an alternately stacked structure of the high-refractive-index film layer and the low-refractive-index film layer.

19. The optical lens of claim 18, wherein, a coating setting factor of an object side surface of the long-wavelength filter lens is FcR1, and a coating setting factor of an image side surface of the long-wavelength filter lens is FcR2, and the following conditions are met: 5.00≤FcR1; or 5.00≤FcR2.

20. The optical lens of claim 19, wherein, The blue glass lens and the long-wavelength filter lens are the same optical lens, a combined setting factor of the object-side surface of the blue glass lens is FbcR1, a combined setting factor of the image-side surface of the blue glass lens is FbcR2, which satisfy the following conditions: 4.00 ≤ FbcR1; or 4.00 ≤ FbcR2.

21. The optical lens of claim 18, wherein, A total number of the long-wavelength filter coating is tLs, which satisfy the following condition: tLs ≤ 80.

22. The optical lens of claim 21, wherein, A total thickness of the long-wavelength filter coating is tTk, which satisfy the following condition: 3000 nm ≤ tTk ≤ 10000 nm.

23. The optical lens of claim 22, wherein, A total thickness of the high-refractive-index film layer is HtTk, a total thickness of the low-refractive-index film layer is LtTk, which satisfy the following condition: 1.00 ≤ LtTk / HtTk ≤ 2.

00.

24. The optical lens of claim 23, wherein, A refractive index of the high-refractive-index film layer is NH, a refractive index of the low-refractive-index film layer is NL, which satisfy the following condition: 0.50 ≤ NH-NL.

25. An electronic device, comprising: Comprising: The optical lens of claim 1.

26. An optical lens, characterized in that, Comprising: At least four optical lenses, comprising a first optical lens, a second optical lens, a third optical lens and a fourth optical lens from the object side to the image side of the optical lens; Wherein the at least four optical lenses comprise a blue glass lens, a fifth setting factor of the blue glass lens is Fb5, a comprehensive setting factor of the blue glass lens is FB, which satisfy the following conditions: 0.05 ≤ Fb5 ≤ 0.40; and 0.50 ≤ FB.

27. The optical lens of claim 26, wherein, A distance between the object-side surface of the first optical lens and the image-side surface of the last optical lens on the optical axis is TD, a maximum image height of the optical lens is ImgH, which satisfy the following condition: 0 < TD / ImgH ≤ 2.

00.

28. The optical lens of claim 27, wherein, A first setting factor of the blue glass lens is Fb1, which satisfy the following condition: Fb1 ≤ 1.

40.

29. The optical lens of claim 28, wherein, A second setting factor of the blue glass lens is Fb2, which satisfy the following condition: Fb2 ≤ 0.

25.

30. The optical lens of claim 29, wherein, A third setting factor of the blue glass lens is Fb3, which satisfy the following condition: 0.60 ≤ Fb3 ≤ 1.

50.

31. The optical lens of claim 30, wherein, A fourth setting factor of the blue glass lens is Fb4, which satisfy the following condition: Fb4 ≤ 0.

08.

32. The optical lens of claim 26, wherein, A total focal length of the optical lens is F, a maximum image height of the optical lens is ImgH, which satisfy the following condition: 2.50 ≤ F / ImgH ≤ 4.

00.

33. The optical lens of claim 32, wherein: The at least four optical lenses comprise a long-wavelength filter lens, the long-wavelength filter lens comprises a long-wavelength filter coating; and The long-wavelength filter coating comprises at least one low-refractive-index film layer and at least one high-refractive-index film layer, and the long-wavelength filter coating is an alternately stacked structure of the high-refractive-index film layer and the low-refractive-index film layer, wherein a coating setting factor of the object-side surface of the long-wavelength filter lens is FcR1, a coating setting factor of the image-side surface of the long-wavelength filter lens is FcR2, which satisfy the following conditions: 7.50 ≤ FcR1; or 7.50 ≤ FcR2.

34. The optical lens of claim 33, wherein, A maximum view angle of the optical lens is FOV, which satisfy the following condition: 0 degree < FOV ≤ 50.00 degrees.

35. The optical lens of claim 26, wherein, The total focal length of the optical lens is F, the distance from the first optical lens object side surface to the last optical lens image side surface on the optical axis is TD, which satisfies the following condition: 0 < F / TD ≤ 0.

80.

36. The optical lens of claim 35, wherein, The at least four optical lenses include a long wavelength absorption lens, a main setting factor of the long wavelength absorption lens is FA, which satisfies the following condition: 2.00 ≤ FA ≤ 5.

00.

37. The optical lens of claim 36, wherein, A material setting factor of the long wavelength absorption lens is Fam, which satisfies the following condition: 30.00 ≤ Fam ≤ 40.

00.

38. The optical lens of claim 36, wherein, The central thickness of the blue glass lens on the optical axis is CTB, the central thickness of the long wavelength absorption lens on the optical axis is CTA, which satisfies the following condition: 1.70 ≤ CTB / CTA ≤ 2.

30.

39. The optical lens of claim 38, wherein, The first setting factor of the blue glass lens is Fb1, the second setting factor of the blue glass lens is Fb2, the third setting factor of the blue glass lens is Fb3, the fourth setting factor of the blue glass lens is Fb4, the fifth setting factor of the blue glass lens is Fb5, the comprehensive setting factor of the blue glass lens is FB, the central thickness of the blue glass lens on the optical axis is CTB, the central thickness of the long wavelength absorption lens on the optical axis is CTA, which satisfies the following conditions: 1.05 ≤ Fb1 ≤ 1.15; 0 ≤ Fb2 ≤ 0.15; 0.95 ≤ Fb3 ≤ 1.06; 0.02 ≤ Fb4 ≤ 0.045; 0.115 ≤ Fb5 ≤ 0.12; 3.00 ≤ FB ≤ ∞; and 1.90 ≤ CTB / CTA ≤ 2.

10.

40. An electronic device, comprising: Comprising: The optical lens of claim 26.

Images