Patent ID: 6621977
Filing Date: 2003-09-16
Classification: B29C,G02B

Abstract:
An optical fiber comprising a core capable of transmitting light incident from one end in the lengthwise direction toward the other end, said core comprising:a polymer of a polymerizable stock material that contains a polymerizable hydroxy monomer with a hydroxyl group in the molecule, wherein polymerizable hydroxy monomer of said optical fiber is 0.5 to 9 wt % with respect to the total weight of said polymerizable stock material, and the minimum dimension (R) in the direction orthogonal to the lengthwise direction of said core and the glass transition temperature (Tg) of said core have a relationship represented by the following equation: 117/R+23g<1050/R2+39 where the unit of R is mm, and the unit of Tg is Â° C.