CPC G02B 13/004 (2013.01) [G02B 9/34 (2013.01); H04N 23/57 (2023.01); H04N 25/53 (2023.01)] | 11 Claims |
1. An optical imaging system comprising, in order from an object side to an image side:
a first lens with positive refractive power;
a second lens with positive refractive power;
a third lens with positive refractive power; and
a fourth lens with negative refractive power,
wherein the optical imaging system has a total of four lenses, and
wherein the optical imaging system satisfies the conditional expression:
0.8<F No.<1.35.
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