Patent ID: 11906814
Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  B | IPC B  G

Claim 8:
9. An in-vehicle camera system, comprising a processor, a memory, an image sensor, and a prime lens module; from an object side to an imaging side thereof, the prime lens module comprising:
a first lens having a negative focal power and a concave imaging side surface, the first lens being a meniscus spherical lens;
a second lens having a negative focal power and two concave spherical surfaces;
a third lens having a positive focal power and two convex spherical surfaces;
a fourth lens having a positive focal power, the fourth lens being a biconvex spherical lens or a biconvex aspheric lens;
a fifth lens having a positive focal power and two convex spherical surfaces;
a sixth lens having a negative focal power and two concave spherical surfaces; and
a seventh lens having a positive focal power, the seventh lens being a biconvex aspheric lens or a biconvex spherical lens;
wherein the second lens and the third lens are bonded together through optical glue; the fifth lens and the sixth lens are bonded through optical glue; one of the fourth lens and the seventh lens is a spherical lens while the other is an aspheric lens, and the prime lens module satisfies the following expressions:

40<|V5−V6|<60;

where V5 represents an Abbe number of the fifth lens; and
V6 represents an Abbe number of the sixth lens.