Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Reexamination Certificate
2005-08-19
2008-09-30
Healy, Brian (Department: 2883)
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
C385S037000, C385S039000, C385S053000, C385S092000, C385S123000, C385S124000, C385S125000, C385S126000, C385S127000, C385S128000, C385S141000, C385S142000, C385S144000, C385S147000
Reexamination Certificate
active
07429138
ABSTRACT:
A plastic optical fiber (11) has a core (12) and a clad (13). The clad (13) is composed of an outer clad (14) and an inner clad (15). The refractive index in the core (12) gradually increases as the distance from the center thereof decreases. The refractive index in the inner clad (15) is equal to the minimum value of the refractive index in the core (12), and the refractive index in the outer clad (14) is smaller than that in the inner clad (15). For the purpose of decreasing the transmission loss between the plastic optical fiber (11) and a light emission device or the light receiving device, the diameter d1of the core (12) and the outer diameter d2of the inner clad (15) satisfy the following conditions;in-line-formulae description="In-line Formulae" end="lead"?100(μm)≦d1≦700(μm)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?200(μm)≦d1≦1000(μm)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?d1<d2.in-line-formulae description="In-line Formulae" end="tail"?
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Hiiro Hiroyuki
Matsumoto Kenji
Nakamura Yoshisada
Sato Takanori
Takahashi Hiroki
FUJIFILM Corporation
Healy Brian
Lam Hung
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