CPC G02B 13/004 (2013.01) [G02B 9/36 (2013.01); G02B 13/0045 (2013.01); G02B 27/0037 (2013.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); G02B 9/64 (2013.01)] | 16 Claims |
1. An optical lens assembly comprising, from an object side to an image side:
a first lens having a positive refractive power;
a second lens immediately adjacent to the first lens, having a negative refractive power;
a third lens immediately adjacent to the second lens, having a negative refractive power; and
a fourth lens immediately adjacent to the third lens, having a positive refractive power,
wherein the fourth lens is a closest lens to an image plane, and
wherein the optical lens assembly satisfies the following condition:
0≤YL/YM<0.4
28<FOV<60 (Degrees), <Condition>
where YL denotes a distance from an optical axis to a maximum sag in an image side surface of the fourth lens, YM denotes ½ of an effective diameter of the image side surface of the fourth lens, and FOV denotes a viewing angle.
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