Patent ID: 8503089

Claim:
An ocular lens comprising the following lens groups sequentially arranged from an object side: a first lens group having negative refracting power; a second lens group including a lens component having a convex surface facing a viewer's eye side; and a third lens group having positive refracting power, wherein an object-side focal plane of the third lens group is located between the second lens group and the third lens group, the first lens group includes the following lens components sequentially arranged from the object side: a first lens component having a convex surface facing the object side, having negative refracting power, and having a meniscus shape; and a second lens component having negative refracting power, and when the ocular lens has an overall focal length f and the first lens group and the second lens group have a combined focal length f12, the following condition is satisfied: −35≦ f 12 /f≦− 3.