Patent EP0159198A2 successfully refreshed from Google Patents.
EP0159198A2
Expired / Lapsed
EP
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Optical fiber termination, process of terminating an optical fiber, and apparatus for terminating an optical fiber.
Assignee: EIDP Inc
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Filing: 1985-04-18
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Granted: —
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Expires: 2005-04-18
Abstract
Abstract An optical fiber material comprising at least one optical fiber and a wrapping material wrapping at least a part of the peripheral surface of the optical fiber in the axial direction of the optical fiber, wherein in its section taken at right angles to the axis of the optical fiber, the wrapping material holds the optical fiber tightly at its inside surfaces which face the optical fiber in the meridian direction of the optical fiber, or hold it tightly in at least three sites of its inner circumferential surface facing the optical fiber. The present invention provide also processes and devices for preparation thereof.
Inventors
- 👤 Toshiyasu Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3801; G02B6/3807; G02B6/3833; G02B6/3855; G02B6/3857; H; H01; H01R; H01R43/00; H01R43/04; H01R43/042; H01R43/0424; G02B6/3898; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T29/49945
Claims Analysis
Total Claims: 72
Claim 1
Independent Claim
107 words
An optical fiber material comprising at least one optical fiber and a wrapping material wrapping at least a part of the peripheral surface of the optical fiber in the axial direction of the optical fiber, wherein in its section taken at right angles to the axis of the optical fiber, the wrapping material holds the optical fiber tightly at its inside surfaces which face the optical fiber in the meridian direction of the optical fiber, and at least one of said inside surfaces of the wrapping material has at least a minute space between it and the peripheral surface of the optical fiber in the equatorial direction.
Claim 2
Dependent Claim
107 words
An optical fiber material comprising at least one optical fiber and a wrapping material wrapping at least a part of the peripheral surface of the optical fiber in the axial direction of the optical fiber, wherein in its section taken at right angles to the axis of the optical fiber, the wrapping material holds the optical fiber tightly at its inside surfaces which face the optical fiber in the meridian direction of the optical fiber, and at least one of said inside surfaces of the wrapping material has at least a minute space between it and the peripheral surface of the optical fiber in the equatorial direction.
Claim 3
Dependent Claim
53 words
The optical fiber material of claim 1 wherein in its section taken at right angles to the axis of the optical fiber, two minutes spaces are formed at positions opposite to each other in the equatorial direction by the peripheral surface of the optical fiber and the inner surface of the wrapping material.
Claim 4
Dependent Claim
19 words
_The optical fiber material of claim 2 wherein in said section, the two spaces have a substantially similar shape.
Claim 5
Dependent Claim
28 words
The optical fiber material of claim 1 wherein the space has a cross sectional area about 0.001 to about 150 times the sectional area of the optical fiber.
Claim 6
Dependent Claim
29 words
The optical fiber material of claim 1 wherein the wrapping material has two facing substantially flat peripheral surfaces at least partly in the axial direction of the optical fiber.
Claim 7
Dependent Claim
66 words
The optical fiber material of claim 1 wherein the wrapping material has two facing peripheral surfaces at least partly in the axial direction of the optical fiber, and each of the peripheral surfaces has two substantially flat portions extending in the axial direction of the optical fiber and a raised portion extending in the axial direction of the optical fiber and located between the flat portions.
Claim 8
Dependent Claim
40 words
The optical fiber material of claim 1 wherein the wrapping material holds the optical fiber tightly at the central part of the wrapping material and releases the optical fiber from tight holding at both end portions of the wrapping material.
Claim 9
Dependent Claim
29 words
The optical fiber material of claim 1 wherein the wrapping material has a length of about 1 to about 100 mm in the axial direction of the optical fiber.
Claim 10
Dependent Claim
36 words
The optical fiber material of claim 1 wherein the wrapping material tightly holds the optical fiber over a length of at least about 1 to about 50 mm in the axial direction of the optical fiber.
Claim 11
Dependent Claim
35 words
The optical fiber material of claim 1 wherein the distance between two ends of the wrapping material facing each other in the equatorial direction is about 0.25 mm to about 5 mm in said section.
Claim 12
Dependent Claim
19 words
ll. The optical fiber material of claim 1 wherein the wrapping material is made of a plastically deformable metal.
Claim 13
Dependent Claim
27 words
The optical fiber material of claim 1 wherein that section of the optical fiber which it taken at right angles to the fiber axis is substantailly circular.
Claim 14
Dependent Claim
26 words
The optical fiber material of claim 1 wherein the outside diameter of the optical fiber in said section is about 50 micrometers to about 1,000 micrometers.
Claim 15
Dependent Claim
18 words
The optical fiber material of claim 1 wherein the optical fiber is made from quartz or multi-component glass.
Claim 16
Dependent Claim
29 words
The optical fiber material of claim 1 wherein at least one end portion of the optical fiber has the wrapping material thereon and is formed in a concave surface.
Claim 17
Dependent Claim
23 words
The optical fiber material of claim 1 wherein the optical fiber is a single optical fiber composed of a core and a clad.
Claim 18
Dependent Claim
88 words
A process for producing the optical fiber material of claim 1, which comprises inserting an optical fiber into at least one holl or slit-like passage formed in a pipe or rod made of a plastically deformable material, and applying a force at least partly to facing peripheral surfaces of the pipe or rod wrapping the optical fiber in the meridian direction in a section of the optical fiber and/or in a direction parallel to it, thereby tightly holding the optical fiber inserted in the hollow or slit-like passage.
Claim 19
Dependent Claim
42 words
The process of claim 17 wherein the forces on said facing peripheral surfaces of the pipe or rod are controlled such that a force on the central part of each peripheral surface is applied earlier than forces on its both end portions.
Claim 20
Dependent Claim
41 words
The process of claim 17 wherein in that section of the pipe or rod which is taken at right angles to its axial direction, the pipe has a substantially circular hollow passage and the rod has a substantially U-shaped slit-like passage.
Claim 21
Dependent Claim
48 words
The process of claim 17 wherein the pipe in its section taken at right angles to its axial direction has an average wall thickness of about 0.1 mm and about 2.5 mm and a hollow passage with an average diameter of about 0.2 mm and about 4.8 mm.
Claim 22
Dependent Claim
46 words
The process of claim 17 wherein the rod in its section taken at right angles to its axial direction has an average thickness of about 0.1 mm and about 2.0 mm and a slit-like passage having a slit width of about 0.05 mm and 3 mm.
Claim 23
Dependent Claim
19 words
The process of claim 17 wherein the passage of the pipe or rod extends smoothly in its longitudinal direction.
Claim 24
Dependent Claim
21 words
The process of claim 17 wherein the pipe or rod has a length of about 1 mm to about 100 mm.
Claim 25
Dependent Claim
17 words
The process of claim 17 wherein the pipe or rod is made of a plastically deformable metal.
Claim 26
Dependent Claim
46 words
The process of claim 17 wherein the average diameter of the hollow passage of the pipe or the maximum width of the slit of the slit-like passage of the rod is about 1.001 to 60 times the diameter of the optical fiber inserted in the passage.
Claim 27
Dependent Claim
47 words
The process of claim 17 wherein the optical fiber is inserted into the passage of the pipe or rod, and a force of about 1 to 800 kg/mm2 of that area which finally undergoes load is applied to the facing peripheral surfaces of the pipe or rod.
Claim 28
Dependent Claim
32 words
The process of claim 17 wherein the force is applied to the facing peripheral surfaces of the pipe or rod by pressing surfaces having a different surface shape from said peripheral surfaces.
Claim 29
Dependent Claim
40 words
The process of claim 17 wherein at one end portion of the pipe or rod, the optical fiber is heat- melted to form a concave surface before or after the optical fiber is tightly held by the pipe or rod.
Claim 30
Dependent Claim
175 words
A press-bonding device for producing the optical fiber material of claim 1 comprising an optical fiber and a wrapping material having a passage for insertion of the optical fiber therein and wrapping at least a part of the peripheral surface of the optical fiber along the axis of the optical fiber, said device comprising a pressing member having two pressing surfaces at least one of which is movable in the meridian direction of the optical fiber or a direction parallel thereto, said pressing member being capable of applying forces at least partly to facing peripheral surface of the wrapping material in said meridian direction or said parallel direction, each of the two pressing surfaces of the pressing member which are to abut against the wrapping material being constructed such that the central portion, taken in the axial direction of the optical fiber, of that part of each pressing surface which is to make contact finally with the wrapping material can apply a force to the wrapping material earlier than the end portions of that part.
Claim 31
Dependent Claim
12 words
The device of claim 29 wherein the pressing surfaces are substantially flat.
Claim 32
Dependent Claim
26 words
The device of claim 29 wherein each of the pressing surfaces is comprised of two substantially flat surfaces and a groove interposed between the flat surfaces.
Claim 33
Dependent Claim
72 words
The device of claim 29 wherein each of the pressing surfaces is formed in a concave shape in the axial direction of the optical fiber so that the central portion, taken in the axial direction of the optical fiber, of that part of each pressing surface which is to make contact finally with the wrapping material can apply a force to the wrapping material earlier than the end portions of that part.
Claim 34
Dependent Claim
98 words
A press-bonding device for producing the optical fiber material of claim 1, comprising a pair of pivotably connected arms, pressing members pivotably connected respectively at one end to the ends of the arms on one side, and a guide member for guiding the pressing members so as to permit their relative movement only on a common axis, each of said pressing members having a pressing surface formed at the other end, and the pressing surfaces of the pressing members being movable toward and away from each other by the pivoting of one arm with respect to the other.
Claim 35
Dependent Claim
72 words
An optical fiber material comprising at least one optical fiber and a wrapping material wrapping at least a part of the peripheral surface of the optical fiber in the axial direction of the optical fiber, wherein in its section taken at right angles to the axis of the optical fiber, the wrapping material holds the optical fiber tightly in at least three sites of its inner circumferential surface facing the optical fiber.
Claim 36
Dependent Claim
72 words
An optical fiber material comprising at least one optical fiber and a wrapping material wrapping at least a part of the peripheral surface of the optical fiber in the axial direction of the optical fiber, wherein in its section taken at right angles to the axis of the optical fiber, the wrapping material holds the optical fiber tightly in at least three sites of its inner circumferential surface facing the optical fiber.
Claim 37
Dependent Claim
21 words
The optical fiber material of claim 34 wherein the wrapping material has a plurality of pressed sites on its peripheral surface.
Claim 38
Dependent Claim
45 words
The optical fiber material of claim 34 wherein in its section taken at right angles to the axis of the optical fiber, at least three minute spaces exist between the inner circumferential surface of the wrapping material and the peripheral surface of the optical fiber.
Claim 39
Dependent Claim
19 words
The optical fiber material of claim 36 wherein the minute spaces have a substantially similar shape in said section.
Claim 40
Dependent Claim
29 words
The optical fiber material of claim 36 wherein in said section, each space has a cross-sectional area not more than 100 times the cross-sectional area of the optical fiber.
Claim 41
Dependent Claim
38 words
The optical fiber material of claim 35 wherein the pressed sites are distributed in axially symmetrical relation in that section of the optical fiber material which is taken at right angles to the axis of the optical fiber.
Claim 42
Dependent Claim
40 words
The optical fiber material of claim 35 wherein each of the pressed sites is of a V- or L-shape in that section of the optical fiber material which is taken at right angles to the axis of the optical fiber.
Claim 43
Dependent Claim
34 words
The optical fiber material of claim 34 wherein at least partly in the axial direction of the optical fiber, the wrapping material has at least three peripheral surfaces forming a V-shaped or L-shaped groove.
Claim 44
Dependent Claim
35 words
The optical fiber material of claim 35 wherein the pressed sites are substantially linear in that section of the optical fiber material which is taken at right angles to the axis of the optical fiber.
Claim 45
Dependent Claim
30 words
The optical fiber material of claim 34 wherein the wrapping material has at least three substantially flat peripheral surfaces at least partly in the axial direction of the optical fiber.
Claim 46
Dependent Claim
47 words
The optical fiber material of claim 34 wherein the wrapping material tightly holds the optical fiber at the central part of the wrapping material along the axis of the optical fiber, and releases the optical fiber from tight holding at both end portions of the wrapping material.
Claim 47
Dependent Claim
30 words
The optical fiber material of claim 34 wherein the wrapping material has a length of about 1 mm to about 100 mm in the axial direction of the optical fiber.
Claim 48
Dependent Claim
35 words
The optical fiber material of claim 34 wherein the wrapping material tightly holds the optical fiber over a length of about 1 mm to about 50 mm in the axial direction of the optical fiber.
Claim 49
Dependent Claim
56 words
The optical fiber material of claim 34 wherein in its section taken at right angles to the axis of the optical fiber, the maximum distance between two points where a phantom axis passing through the center of the optical fiber crosses the peripheral surfaces of the wrapping material is about 0.25 mm to about 5 mm.
Claim 50
Dependent Claim
18 words
The optical fiber material of claim 34 wherein the wrapping material is made of a plastically deformable metal.
Claim 51
Dependent Claim
24 words
The optical fiber material of claim 34 wherein the optical fiber is substantially circular in its section taken at right angles to its axis.
Claim 52
Dependent Claim
33 words
The optical fiber material of claim 34 wherein the optical fiber has an outside diameter of about 50 micrometers to about 1,000 micrometers in its section taken at right angles to its axis.
Claim 53
Dependent Claim
18 words
The optical fiber material of claim 34 wherein the optical fiber is made of quartz or multi-component glass.
Claim 54
Dependent Claim
29 words
The optical fiber material of claim 34 wherein at least one end portion of the optical fiber has the wrapping material thereon, and is formed in a concave surface.
Claim 55
Dependent Claim
23 words
The optical fiber material of claim 34 wherein the optical fiber is a single optical fiber composed of a core and a clad.
Claim 56
Dependent Claim
103 words
A process for producing the optical fiber material of claim 34 which comprises inserting an optical fiber into at least one hollow or slit-like passage formed in a pipe or rod made of a plastically deformable material, and applying substantially equal forces directed toward the center of the pipe or rod to the peripheral surface of the pipe or rod in at least three sites on the peripheral surface of the pipe or rod in its section taken at right angles to the longitudinal direction of the pipe or rod, thereby tightly holding the optical fiber inserted in the hollow or slit-like passage.
Claim 57
Dependent Claim
15 words
The process of claim 54 wherein said at least., three sites are substantially axially symmetrical.
Claim 58
Dependent Claim
52 words
The process of claim 54 wherein the forces to be applied to at least a part of the peripheral surface of the pipe or rod are controlled such that a force on the central part of said peripheral surface is applied earlier than forces on both end portions of said peripheral surface.
Claim 59
Dependent Claim
33 words
The process of claim 54 wherein the pipe or rod has a substantially circular hollow passage or a substantially U-shaped slit-like passage in its section taken at tight angles to its axial direction.
Claim 60
Dependent Claim
47 words
The process of claim 54 wherein the pipe has an average wall thickness of about 0.1 mm to about 2.5 mm and a hollow passage with an average diameter of about 0.2 to about 4.8 mm in its section taken at right angles to its axial direction.
Claim 61
Dependent Claim
46 words
The process of claim 54 wherein the rod has an average thickness of about 0.1 to about 2.5 mm and a slit-like passage with a slit width of about 0.05 mm to about 3 mm in its section taken at right angles to its axial direction.
Claim 62
Dependent Claim
19 words
The process of claim 54 wherein the passage of the pipe or rod extends smoothly in the longidutinal direction.
Claim 63
Dependent Claim
21 words
The process of claim 54 wherein the pipe or rod has a length of about 1 mm to about 100 mm.
Claim 64
Dependent Claim
17 words
The process of claim 54 wherein the pipe or rod is made of a plastically deformable metal.
Claim 65
Dependent Claim
46 words
The process of claim 54 wherein the average diameter of the hollow passage of the pipe or the maximum width of the slit of the slit-like passage of the rod is about 1.001 to 60 times the diameter of the optical fiber inserted in the passage.
Claim 66
Dependent Claim
48 words
The process of claim 54 wherein the optical fiber is inserted into the passage of the pipe or rod, and a force of about 1 to about 800 kg/mm 2 of that area which finally undergoes load is applied to the peripheral surface of the pipe or rod.
Claim 67
Dependent Claim
31 words
The process of claim 54 wherein the forces are applied to the peripheral surface of the pipe or rod by pressing surfaces having a different surface shape from said peripheral surface.
Claim 68
Dependent Claim
40 words
The process of claim 54 wherein the optical fiber at one end portion of the pipe or rod is heat- melted to form a concave surface before or after the optical fiber is tightly held by the pipe or rod.
Claim 69
Dependent Claim
170 words
A press-bonding device for producing the optical fiber material of claim 34 comprising an optical fiber and a wrapping material having a passage for insertion of the optical fiber therein and wrapping at least a part of the peripheral surface of the optical fiber along the axis of the optical fiber, said device comprising a pressing member having at least three pressing surfaces at least one of which is movable in a direction passing through the central part of the optical fiber, said pressing member being capable of applying forces at least partly to the peripheral surface of the wrapping material in said direction passing through the central part of the optical fiber, each of said at least three pressing surfaces being constructed such that the central portion, taken in the axial direction of the optical fiber, of that part of each pressing surface which is to make contact finally with the wrapping material can exert a force on the wrapping material earlier than the end portions of that part.
Claim 70
Dependent Claim
12 words
The device of claim 67 wherein the pressing surfaces are substantially flat.
Claim 71
Dependent Claim
26 words
The device or tool of claim 67 wherein the pressing surfaces are each composed of two substantially flat planes having a V-shaped or L-shaped cross section.
Claim 72
Dependent Claim
72 words
The device of claim 67 wherein each of the pressing surfaces is formed in a concave shape in the axial direction of the optical fiber so that the central portion, taken in the axial direction of the optical fiber, of that part of each pressing surface which is to make contact finally with the wrapping material can exert a force on the wrapping material earlier than the end portions of that part.
References Cited (Backward Citations)
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