Patent ID: 11966031
Assignee: LARGAN PRECISION CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 23:
24. An electronic device, comprising a zoom imaging apparatus and at least one prime imaging apparatus, the zoom imaging apparatus and the prime imaging apparatus facing towards the same side, the zoom imaging apparatus comprising an image lens assembly; an optical axis of the prime imaging apparatus is perpendicular to an optical axis of the image lens assembly, and the image lens assembly comprising, in order from an object side to an image side along an optical path:
a first lens group comprising a first lens element having positive refractive power; and a second lens element having negative refractive power;
a second lens group comprising at least one lens element;
a third lens group comprising at least one lens element; and
a fourth lens group comprising a seventh lens element;
wherein, a total number of lens elements in the image lens assembly is seven, at least one lens element of the image lens assembly comprises at least one inflection point in an off-axis region thereof; when the image lens assembly is focusing or zooming, a relative position between the first lens group and an image surface is fixed, a relative position between the fourth lens group and the image surface is fixed, and the second lens group and the third lens group move along the optical axis; at least four lens elements of the image lens assembly are made of plastic material; when the image lens assembly is zooming, a relative position between any lens elements of each of the lens groups is fixed;
wherein, a maximum field of view in a zoom range of the image lens assembly is FOVmax, a minimum field of view in the zoom range of the image lens assembly is FOVmin, a maximum field of view of the prime imaging apparatus of the electronic device is DFOV, and the following conditions are satisfied:

1.25<FOVmax/FOVmin<5.0; and

40 degrees<DFOV−FOVmax.