US4812012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber array having fiber islands in a polymer sea
Assignee: Mitsubishi Chemical Corp
•
Filing: 1987-12-02
•
Granted: 1989-03-14
•
Expires: 2007-12-02
Abstract
Abstract An optical fiber array comprising a great number of multifilament type plastic optical fibers having a substantially rectangular peripheral sectional shape and including 10 to 10000 light-transmitting islands having a diameter of 5 to 200 μm, which are densely arranged in the sea, wherein one ends of the multifilament type plastic optical fibers are arranged in one line or a plurality of lines and the other ends thereof are integrated in a substantially rectangular or substantially circular shape.
Inventors
- 👤 Hiromu Terada
- 👤 Kenichi Sakunaga
- 👤 Naoyuki Fukahori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:09
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/04; G02B6/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
An optical fiber array comprising: a plurality of multifilament type plastic optical fibers having a substantially rectangular peripheral sectional shape and including 10 to 10,000 light-transmitting islands having a diameter of 5 to 200 microns; a sea component wherein said multifilament type plastic optical fibers are densely arranged in said sea component and wherein one end of the multifilament type plastic optical fibers are arranged in one of a single line and a plurality of lines and wherein the other end of said fibers are integrated in one of a substantially rectangular and substantially circular shape.
Claim 2
Dependent Claim
96 words
An optical fiber array comprising: a plurality of multifilament type plastic optical fibers having a substantially rectangular peripheral sectional shape and including 10 to 10,000 light-transmitting islands having a diameter of 5 to 200 microns; a sea component wherein said multifilament type plastic optical fibers are densely arranged in said sea component and wherein one end of the multifilament type plastic optical fibers are arranged in one of a single line and a plurality of lines and wherein the other end of said fibers are integrated in one of a substantially rectangular and substantially circular shape.
Claim 3
Dependent Claim
25 words
An optical fiber array as set forth in claim 1, wherein the islands of the multifilament optical fibers are densely arranged in a zigzag-stacked structure.
Claim 4
Dependent Claim
36 words
An optical fiber array as set forth in claim 1, wherein the rectangularly integrated ends of the multifilament type optical fibers are integrated at particular addressable locations corresponding to the arrangement order on the line side.
Claim 5
Dependent Claim
40 words
An optical fiber array as set forth in claim 1, wherein the resolution of said array is defined by the tested line density of the multifilament type optical fiber and wherein said line density is at least 2 line pair/mm.
Claim 6
Dependent Claim
20 words
An optical fiber array as set forth in claim 4, wherein said line density is 5 to 30 line pair/mm.
Claim 7
Dependent Claim
38 words
An optical fiber array as set forth in claim 1, wherein the difference of the refractive index of a core polymer constituting the islands and the refractive index of the sea or sheath polymers is at least 0.01.
References Cited (Backward Citations)
US3238837A
Cited
US3282666A
Cited
DE2505995A1
Cited
US4026693A
Cited
US4222630A
Cited
US4352550A
Cited
US4311357A
Cited
US4409477A
Cited
US4690500A
Cited
US4570063A
Cited
EP0101112A1
Cited
US4730895A
Cited
US4564261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |