Method and apparatus for manufacturing a graded refractive index

Details Method and apparatus for manufacturing a graded refractive index Method and apparatus for manufacturing a graded refractive index

1998-03-16

1999-08-17

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Optical fiber, waveguide, or preform

264 11, 264 129, 264 26, 264 27, 26421115, 425 71, 4253241, 425404, B29D 1100

Patent

active

059389869

ABSTRACT:
A plastic optical-fiber is provided having a desired length and a desired graded refractive index. To this end, a base polymer is mixed with a non-polymerizable compound having a higher refractive index to obtain a fiber material. This material is then transformed continuously into a fiber in a fiber-preparing unit. A plurality of diffusion tanks are each provided with a solution, each solution having a level of viscosity different from one another. The fiber is then dipped successively into the solutions in the order from a lowest viscosity level to a higher viscosity level. During this process, the non-polymerizable compound and polymerizable compound diffuse inside the fiber and form a graded refractive index distribution. The polymerizable compound is then polymerized and hardened in a drying-and-heating unit. The fiber thus obtained is drawn and coated with a cladding.

REFERENCES:
patent: 3718383 (1973-02-01), Moore
patent: 3819782 (1974-06-01), Irie
patent: 3955015 (1976-05-01), Ohtsuka et al.
patent: 5390274 (1995-02-01), Toyoda et al.
patent: 5405556 (1995-04-01), Liu
patent: 5541247 (1996-07-01), Koike
patent: 5614253 (1997-03-01), Nonaka et al.
patent: 5639512 (1997-06-01), Nonaka et al.
An English Language abstract of JP 63-218903.
An English Language abstract of JP 7-27928.
An English Language abstract of JP 7-5329.
An English Language abstract of JP 7-13029.
An English Language abstract of JP 6-186442.
An English Language abstract of JP 5-60931.
An English Language abstract of JP 9-218311.
An English Language abstract of JP 9-218312.

Affiliated with

Also associated with

Rating

Method and apparatus for manufacturing a graded refractive index does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for manufacturing a graded refractive index, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for manufacturing a graded refractive index will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-312516