Patent ID: 11947092
Assignee: SINTAI OPTICAL (SHENZHEN) CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A lens assembly comprising:
a first lens group which is with negative refractive power;
a second lens group which is with positive refractive power;
a third lens group which is with negative refractive power;
a fourth lens group which is with positive refractive power;
a fifth lens group which is with refractive power;
a sixth lens group which is with refractive power; and
a first reflective element which comprises a first reflective surface;
wherein the first lens group, the second lens group, the third lens group, the fourth lens group, the fifth lens group, and the sixth lens group are arranged in order from a first side to a second side along an axis;
wherein a light from the first side sequentially passes through the first lens group, the second lens group, the third lens group, the fourth lens group, the fifth lens group, and the sixth lens group to the second side;
wherein the first reflective element is disposed between the first lens group and the sixth lens group; The lens assembly as claimed in claim 1, wherein the lens assembly satisfies at least one of following conditions:

11 mm<C<12 mm;

0.1 mm<D<0.6 mm;

wherein C is an interval from a first side surface of the lens closest to the first side in the fifth lens group to an image plane along the axis and D is an offset of the sixth lens group moving along the direction perpendicular to the axis.