TRUNCATED BALL LENS FOR AN EXPANDED BEAM CONNECTOR

摘要

Disclosed is a truncated ball lens, and method of making same, in which a ball lens, having a focal point internal to (i.e., inside of) the ball lens, is constructed by removing a surface of the ball lens so as to expose the focal point. The exposed side of the truncated ball lens faces the endface of a fiber directing light towards the lens. In a preferred embodiment, an optical axis of the truncated ball lens coincides with an optical axis of the fiber.