Patent ID: 11899190
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The zoom lens system of claim 1, wherein the third lens group is comprised of:
a positive lens L3a; 
a positive lens L3b; 
a negative lens L3c; and
a positive lens L3d, 
wherein:
the positive lens L3a, the positive lens L3b, the negative lens L3c, and the positive lens L3d are arranged in this order such that: (i) the positive lens L3a is configured to be closer to the object than any of the positive lens L3b, the negative lens L3c, or the positive lens L3d; and (ii) the positive lens L3d is configured to be closer to the image than any of the positive lens L3a, the positive lens L3b, or the negative lens L3c; 
the zoom lens system satisfies vL3d>62; and
vL3d is an abbe number with respect to a d-line of the positive lens L3d.