Optical lens assembly, imaging apparatus and electronic device

1 . An optical lens assembly, comprising:

at least three optical elements;

wherein at least one of the at least three optical elements comprises a multi-layer coating membrane, the multi-layer coating membrane is formed by alternately stacking high refractive index layers and low refractive index layers, the optical element comprising the multi-layer coating membrane is an optical lens element, the optical lens element is made of a glass material, and at least one of the at least three optical elements comprises a long-wavelength absorbing material;

wherein the multi-layer coating membrane is a dual-bandpass filtering membrane;

wherein a total number of layers of the multi-layer coating membrane is tLs, an average transmittance in a wavelength range of 450 nm-630 nm of the optical element comprising the multi-layer coating membrane is T4563, an average transmittance in a wavelength range of 830 nm-870 nm of the optical element comprising the multi-layer coating membrane is T8387, a slope from a center position to a position of a maximum horizontal displacement of the optical lens element is SPmax, and the following conditions are satisfied:

65≤ tLs≤ 200;

80%≤ T 4563;

80%≤ T 8387; and

7.5<| SP max|.

2 . The optical lens assembly of claim 1 , wherein at least one of the at least three optical elements is an optical lens element, a slope from the center position to a position of a maximum effective diameter of the optical lens element is SPsd, and the following condition is satisfied:

7.5≤|SPsd|.

3 . The optical lens assembly of claim 2 , wherein the slope from the center position to the position of a maximum horizontal displacement of the optical lens element is SPmax, and the following condition is satisfied:

7.6≤| SP max|

4 . The optical lens assembly of claim 3 , wherein when the position of the maximum effective diameter and the position of the maximum horizontal displacement of the optical lens element are different, a slope from the position of the maximum horizontal displacement to the position of the maximum effective diameter of the optical lens element is SPbi, and the following condition is satisfied:

7.5≤|SPbi|.

5 . The optical lens assembly of claim 4 , wherein the average transmittance in the wavelength range of 450 nm-630 nm of the optical element comprising the multi-layer coating membrane is T4563, and the following condition is satisfied:

90%≤ T 4563.

6 . The optical lens assembly of claim 5 , wherein the average transmittance in the wavelength range of 830 nm-870 nm of the optical element comprising the multi-layer coating membrane is T8387, and the following condition is satisfied:

90%≤ T 8387.

7 . The optical lens assembly of claim 6 , wherein a transmittance at a wavelength of 850 nm of the optical element comprising the multi-layer coating membrane is T85, and the following condition is satisfied:

90%≤ T 85.

8 . The optical lens assembly of claim 7 , wherein an average transmittance in a wavelength range of 700 nm-760 nm of the optical element comprising the multi-layer coating membrane is T7076, and the following condition is satisfied:

T 7076≤1%.

9 . The optical lens assembly of claim 8 , wherein a total thickness of the multi-layer coating membrane is tTk, and the following condition is satisfied:

5000 nm≤ tTk≤ 10000 nm.

10 . The optical lens assembly of claim 9 , wherein the multi-layer coating membrane comprises at least one of the low refractive index layers, the multi-layer coating membrane comprises at least one of the high refractive index layers, a total thickness of the low refractive index layer is LtTk, a total thickness of the high refractive index layer is HtTk, and the following condition is satisfied:

1.0≤LtTk/HtTk≤1.5.

11 . The optical lens assembly of claim 1 , wherein the multi-layer coating membrane comprises at least one of the low refractive index layers, the multi-layer coating membrane comprises at least one of the high refractive index layers, a refractive index of the high refractive index layer is NH, a refractive index of the low refractive index layer is NL, the total number of layers of the multi-layer coating membrane is tLs, a total thickness of the low refractive index layer is LtTk, a total thickness of the high refractive index layer is HtTk, the average transmittance in the wavelength range of 450 nm-630 nm of the optical element comprising the multi-layer coating membrane is T4563, the average transmittance in the wavelength range of 830 nm-870 nm of the optical element comprising the multi-layer coating membrane is T8387, a transmittance at a wavelength of 850 nm of the optical element comprising the multi-layer coating membrane is T85, an average transmittance in a wavelength range of 700 nm-760 nm of the optical element comprising the multi-layer coating membrane is T7076, and the following conditions are satisfied:

1.9≤ NH;

NL< 1.9;

80≤ tLs≤ 150;

1.2≤LtTk/HtTk≤1.5;

95%≤ T 4563≤100%;

95%≤ T 8387≤100%;

95%≤ T 85≤100%; and

T 7076≤0.5%.

12 . An imaging apparatus, comprising:

the optical lens assembly of claim 1 ; and

an image sensor disposed on an image surface of the optical lens assembly.

13 . An electronic device, comprising:

the imaging apparatus of claim 12 .