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EP0564207A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Optical fiber connector

Assignee: NGK Insulators Ltd
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Filing: 1993-03-29
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Granted: —
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Expires: 2013-03-29
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Abstract

Abstract Disclosed is an optical fiber connector for a plurality of covered optical fibers, comprising (a) a lower ceramics plate (19) with a top plane surface having a plurality of V-grooves (12), each groove for respectively holding one fiber, (b) an upper plate (30), in spaced apart combination with the lower plate, for firmly holding the optical fibers in the lower plate grooves, and a holder (20) having two opposed end portions in which (i) a first cavity (22) is profiled in the first end portion to accommodate the combination of the upper and lower plates, and (ii) a second cavity (24) is profiled in the second end portion to accommodate the covered fibers, and wherein the first cavity has a connection portion proximate to an inner end of the second cavity, which connects the first and second cavities to provide a through passage for the fibers.

Inventors

  • 👤 Koichiro Maekawa
  • 👤 Takashi Ota
  • 👤 Masashi Fukuyama
  • 👤 Shinji Nagasawa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 21:21
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3834; G02B6/3838; G02B6/3839

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 139 words
An optical fiber connector for a plurality of covered optical fibers, comprising: (a) a lower ceramics plate with a top plane surface having a plurality of V-grooves, each groove for respectively holding one fiber; (b) an upper plate, in spaced apart combination with said lower plate, for firmly holding the optical fibers in said lower plate grooves; and (c) a holder having two opposed end portions in which: (i) a first cavity is profiled in the first end portion to accommodate the combination of said upper and lower plates; and (ii) a second cavity is profiled in the second end portion to accommodate the covered fibers, and wherein said first cavity has a connection portion proximate to an inner end of said second cavity, which connects said first and second cavities to provide a through passage for the fibers.
Claim 2
Dependent Claim 39 words
A connector according to claim 1, further comprising narrowing means disposed in said connection portion above said lower plate, for narrowing the cross section of the connection portion, whereby the fibers are loosely held in place in said grooves.
Claim 3
Dependent Claim 47 words
A connector according to claim 1, wherein said narrowing means comprises a portion of said lower plate grooves and an upper holding means disposed thereabove by a distance less than the diameter of the optical fiber, so as to narrow the cross-sectional area of said connection portion.
Claim 4
Dependent Claim 28 words
A connector according to claim 3, wherein said upper holding means is made of ceramics and said first cavity is profiled to also accommodate said upper holding means.
Claim 5
Dependent Claim 17 words
A connector according to claim 3, wherein said upper holding means is monolithically integral with said holder.
Claim 6
Dependent Claim 52 words
A connector according to claims 2, 3, 4 or 5, wherein said upper holding means is displaced away from said second cavity so as to narrow the cross-section of said connection portion at a position away from said second cavity and to facilitate the introduction of the fibers through said second cavity.
Claim 7
Dependent Claim 21 words
A connector according to claims 1, 2, 3, 4 , 5 or 6, wherein said upper plate is made of ceramics.
Claim 8
Dependent Claim 21 words
A connector according to claims 1, 2, 3, 4 , 5, 6 or 7, wherein said holder is made of resin.
Claim 9
Dependent Claim 21 words
A connector according to claims 1, 2, 3, 4 , 5, 6 or 7, wherein said holder is made of metal.
Claim 10
Dependent Claim 94 words
A connector according to claims 1, 2, 3, 4 , 5, 6, 7, 8 or 9, further comprising alignment means having: (i) an alignment pin; (ii) an alignment plate; (iii) two complementary grooves, one profiled in said alignment plate and the other profiled in said top plane surface of said lower plate, so that in combination, said alignment plate and said lower plate firmly hold said alignment pin within said alignment grooves, and wherein said first cavity is profiled to accommodate said alignment means so that said alignment pin is firmly held in place.

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