Patent ID: 6623175
Filing Date: 2003-09-23
Classification: G02B

Abstract:
An optical connector ferrule comprising:a fiber insertion hole piercing from one end surface to the other end surface in a longitudinal direction, wherein said fiber insertion hole is composed of an introductory hole, an intermediate hole, and a plurality of minute holes, said introductory hole is formed on one end side in the longitudinal direction of said optical connector ferrule, said intermediate hole is formed in front of said introductory hole, said minute holes are formed in front of the intermediate hole, said introductory hole has a sectional area that allows insertion of a coated portion of an optical fiber, said intermediate hole has a sectional area which does not allow insertion of the coated portion of the optical fiber but which allows insertion of a bare fiber exposed at the forward end of the coated portion, said minute holes have a sectional area that allows insertion of the forward end portion of the bare fiber inserted into the intermediate hole; and wherein the length of the introductory hole is not less than eight times a diameter of a coated portion of the optical fiber.