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Patent EP0540850A2 successfully refreshed from Google Patents.
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EP0540850A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Optical connector

Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1992-09-08
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Granted: —
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Expires: 2012-09-08
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Abstract

Abstract An optical connector for connecting optical fibers, comprises: a guide-groove substrate (1) having grooves (3,4) for positioning optical fibers and guide pins; an upper plate (2) having groove portions (15,16) each for covering the guide pins (7) positioned in the guide grooves of the guide-groove substrate; elastic guide-pin pressing members each provided in the groove portions of the upper plate above portions where the guide pin grooves are in contact with the guide pins. In such a arrangement, it is preferable to form an oxide film on said V-grooves of the guide-groove substrate at least in the vicinity of contact points between the guide pins and the V-grooves. The optical connector further includes a resin molding portion (9) for surrounding the substrate and the upper plate, the resin molding portion including a pair of opposite opened portions at a front and back surfaces thereof.

Inventors

  • 👤 Toshiaki c/o Yokohama Works of Sumitomo Kakii
  • 👤 Makoto C/O Yokohama Works Of Sumitomo Honjo
  • 👤 Hidetoshi c/o Yokohama Works of Sumitomo Ishida
  • 👤 Hiroshi C/O Yokohama Works Of Sumitomo Katsura
  • 👤 Toru C/O Yokohama Works Of Sumitomo Yamanishi
  • 👤 Yoshikyo c/o Yokohama Works of Sumitomo Tamekuni
  • 👤 Kazumichi c/o Yokohama Works of Sumitomo Miyabe
  • 👤 Tadashi Haibara
  • 👤 Shinji Nagasawa
  • 👤 Michito Matsumoto

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 12:43
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3865; G02B6/3834; G02B6/3838; G02B6/3839; G02B6/3873

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 71 words
An optical connector for connecting optical fibers, comprising: a guide-groove substrate having grooves for positioning optical fibers and guide pins; an upper plate having groove portions each for covering said guide pins positioned in said guide grooves of said guide-groove substrate; elastic guide-pin pressing members each provided in said groove portions of said upper plate at positions above portions where said guide pin grooves are in contact with said guide pins.
Claim 2
Dependent Claim 23 words
An optical connector as claimed in claim 1, wherein said upper plate provides opening portions in an upper surface of said groove portions.
Claim 3
Dependent Claim 43 words
An optical connector as claimed in claim 1, further comprising a resin molding portion for covering said guide-groove substrate and said upper plate; wherein said elastic guide-pin pressing members are made of the same resin material as that of said molding resin portion.
Claim 4
Dependent Claim 34 words
An optical connector as claimed in claim 1, wherein said connector has a structure in which said elastic guide-pin pressing members are formed through insert-molding integrally with said guide-groove substrate and said upper plate.
Claim 5
Dependent Claim 55 words
An optical connector for coupling optical fibers, comprising: a connection member made of silicon and having V-grooves by which guide pins and optical fibers are positioned and fixed; and an oxide film formed on said V-grooves of said connection member at least in the vicinity of contact points between said guide pins and said V-grooves.
Claim 6
Dependent Claim 20 words
An optical connector as claimed in claim 5, wherein said oxide film is formed by oxidizing surfaces of said V-grooves.
Claim 7
Dependent Claim 20 words
An optical connector as claimed in claim 5, wherein said oxide film has a thickness of 0.01 to 2.0 µm.
Claim 8
Dependent Claim 16 words
An optical connector as claimed in claim 5, wherein said guide pins are made of ceramic.
Claim 9
Dependent Claim 16 words
An optical connector as claimed in claim 5, wherein said guide pins are made of zirconia.
Claim 10
Dependent Claim 92 words
An optical connector for performing an optical coupling, comprising: a guide member made of a hard and brittle material and having optical fiber guide grooves for positioning optical fibers and an exposed area where said optical fiber guide grooves are exposed; a resin molding portion for surrounding said V-groove guide member, said resin molding portion including a pair of opposite opened portions at a front and back surfaces thereof, said exposed area of the guide member being exposed from said opened portion of said resin molding portion at the front surface thereof.
Claim 11
Dependent Claim 16 words
An optical connector as claimed in claim 10, wherein said guide member is made of silicon.
Claim 12
Dependent Claim 18 words
An optical connector as claimed in claim 10, wherein said region molding portion is made of epoxy resin.

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