Multifilament type plastic optical fiber and process for prepara

Details Multifilament type plastic optical fiber and process for prepara Multifilament type plastic optical fiber and process for prepara

1987-06-15

1989-06-27

Lee, John D.

350 9625, G02B 604

Patent

active

048423653

ABSTRACT:
A multifilament type plastic optical fiber having a substantially rectangular cross-section and an islands-in-the-sea structure in which 100 to 10,000 islands are arranged in the sea, wherein the respective islands have a substantially circular cross-section and a core-sheath structure, the islands are arranged in a sigzag-stacked structure, the core occupancy ratio in the multifilament type optical fiber cores section is at least 50% and the brightness index value I which is defined by the following (1), is at least 4.5.times.10.sup.-2 :

REFERENCES:
patent: 3556635 (1971-01-01), Schrenk et al.
patent: 4352550 (1982-10-01), Uchida
patent: 4564261 (1986-01-01), Kojima et al.
patent: 4690500 (1987-09-01), Hayami et al.

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