US Patent 7458730 Optical fiber connector assembly

An optical fiber connector assembly has a sheath, a casing, an alignment pin and a spring. The sheath has a channel defined in the sheath. The casing is mounted in the channel and has a pin hole defined through the casing and communicating with the channel. The alignment pin is mounted slidably through the pin hole and the channel and has an annular flange extending radially from the alignment pin and selectively abutting the casing. The spring is mounted in the channel and presses against the annular flange to ensure the alignment pin abuts a contacting surface tightly. With the spring, the alignment pin of the optical fiber connector may press tightly and stably against an LED of a socket and improve signal transmission quality.