Patent ID: 11867880
Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. The optical imaging system according to claim 1, wherein −4<SAG61/(SAG62−SAG71 )<−1,
where SAG61 is a distance along the optical axis from an intersection of an object-side surface of the sixth lens and the optical axis to a vertex of an effective radius of the object-side surface of the sixth lens,
SAG62 is a distance along the optical axis from an intersection of an image-side surface of the sixth lens and the optical axis to a vertex of an effective radius of the image-side surface of the sixth lens, and
SAG71 is a distance along the optical axis from an intersection of the object-side surface of the seventh lens and the optical axis to a vertex of an effective radius of the object-side surface of the seventh lens.