| 摘要 |
A collimating rod lens for fiber optic communication with a cylindrical envelope surface, and a spherical convex front surface, wherein the lens has a particular length L and a particular radius R of the curvature of the lens, and the spherical convex front surface is given by R=A*L+B, wherein A is a first optical glass parameter from 0.3 to 0.6; B is a second optical glass parameter from −0.1 to +0.1; the length L is from 2 to 8 mm; and the radius R of the curvature is from 0.5 to 3.5 mm. |
