DE2505621A1 - COVERING FOR AN OPTICAL CONDUCTOR - Google Patents
COVERING FOR AN OPTICAL CONDUCTORInfo
- Publication number
- DE2505621A1 DE2505621A1 DE19752505621 DE2505621A DE2505621A1 DE 2505621 A1 DE2505621 A1 DE 2505621A1 DE 19752505621 DE19752505621 DE 19752505621 DE 2505621 A DE2505621 A DE 2505621A DE 2505621 A1 DE2505621 A1 DE 2505621A1
- Authority
- DE
- Germany
- Prior art keywords
- shell
- conductor
- sheath
- unstretched
- longitudinal direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4402—Optical cables with one single optical waveguide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
Description
Patentanwalt ■-'.-.-■Patent attorney ■ -'.-.- ■
DipE.-Eng.tVaiiarJask'isch OKf] RRDipE.-Eng.tVaiiarJask'isch OKf] RR
2 Stuttgart N. Menzölstraße 40 ■ . ■ ■ ° U ^-2 Stuttgart N. Menzölstrasse 40 ■. ■ ■ ° U ^ -
Francois Port A 3*ί 679Francois Port A 3 * ί 679
42 rue de la procession42 rue de la procession
75015 Paris
Prankreich75015 Paris
France
Umhüllung für einen optischen LeiterSheathing for an optical conductor
Die Erfindung bezieht sich auf eine umhüllung der im Oberbegriff des Patentanspruchs 1 näher bezeichneten Art.( PR-PS 2 095 172 )0 The invention relates to an enclosure of the type specified in more detail in the preamble of claim 1 (PR-PS 2 095 172) 0
Die auf den Schutz eines Lichtleiters gerichtete.; Erfindung findet insbesondere Anwendung bei verlustarmen optischen Leitern, die mehrere hundert Meter lang sein können»The one aimed at protecting a light guide .; Invention finds particular application in low-loss optical conductors that can be several hundred meters long »
Optische Leiter, beispielsweise in Form einer Faser von 200 /um Durchmesser sind bekanntlich sehr zerbrechlich und müssen insbesondere dann wirksam geschützt werden, wenn sie in großen Längen verwendet werden, um ohne große Vorsicht gehandhabt werden zu können«,Optical conductors, for example in the form of a fiber with a diameter of 200 μm, are known to be very fragile and, in particular, then have to be effectively protected if they are used in great lengths so that they can be handled without great care «,
Die Aufgabe der Erfindung besteht in der Schaffung einer verbesserten Umhüllung für Lichtleiter großer Länge, insbesondere Leiter für einheitliches Licht,The object of the invention is to create an improved sheath for large light guides Length, especially ladder for uniform light,
509833/0733 ~ 2-509833/0733 ~ 2-
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Leiter von einer ersten aus Kunststoff bestehenden Hülle umgeben ist, in der er frei beweglich und ungedehnt angeordnet ist, daß die erste Hülle ihrerseits mit einer zweiten aus Kunststoff bestehenden und verstärkten Hülle umgeben ist, deren Innendurchmesser merklich größer als der Äußendurchmesser der ersten Hülle ist, die sich frei beweglich in der zweiten Hülle befindet.The object is achieved according to the invention in that the conductor is surrounded by a first plastic sheath in which it can move freely and is arranged unstretched that the first shell in turn with a second made of plastic and reinforced shell, the inner diameter of which is markedly larger than the outer diameter of the first shell, which is freely movable in the second shell.
Die Erfindung wird mit ihren weiteren Einzelheiten und Vorteilen an Hand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Ss versteht sich, daß die Beschreibung nur beispielhaft ist und die Erfindung in keiner Weise beschränkt«The invention with its further details and advantages is illustrated in the drawing with reference to the Embodiment explained in more detail. It goes without saying that the description is only exemplary and the invention is in no way restricted "
Die Figur zeigt eine perspektivische Ansicht einer erfindungsgemäßen Umhüllung für einen Lichtleiter,The figure shows a perspective view of a casing according to the invention for a light guide,
Erfindungsgemäß ist der Lichtleiter 1, der aus einer Faser von 200 mm Durchmesser besteht, mit einer ersten Hülle 2 aus Polyäthylen umgeben, die einen Innendurchmesser von 1 mm und einen Außendurchmesser von 2,2 mm besitzt,,According to the invention, the light guide 1, which consists of a fiber with a diameter of 200 mm , is surrounded by a first sheath 2 made of polyethylene, which has an inner diameter of 1 mm and an outer diameter of 2.2 mm.
Die erste Hülle 2 ist ihrerseits durch eine zweite Hülle 3 geschützt, die einen Innendurchmesser von etwaThe first shell 2 is in turn protected by a second shell 3, which has an inner diameter of approximately
S09833/0733S09833 / 0733
3,5 mm und einen Außendurchmesser von iO mm besitzt. Zur Verstärkung der Festigkeit, insbesondere der Zugfestigkeit der Hülle 3 ist diese mit in Längsrichtung angeordneten Glasfasern 4 verstärkt.3.5 mm and an outside diameter of OK mm. In order to increase the strength, in particular the tensile strength of the sheath 3, it is also included in the longitudinal direction arranged glass fibers 4 reinforced.
Wie aus Vorstehendem ersichtlich ist, ist der Leiter 1 zur Verhinderung eines Bruchs bei Zugbelastung ungedehnt in der Hülle 2 angeordnet, d.h0, daß die Länge des Leiters 1 größer als die der Hülle 2 ist«,As can be seen from the foregoing, the conductor 1 is unstretched arranged to prevent a fracture under tensile loading in the casing 2, ie, 0, that the length of the conductor 1 as that of the shell 2 is larger, "
Zur Erzielung dieses Ergebnisses wird die Hülle 2 auf den gedehnten Leiter 1 aufextrudiert und nach erfolgter Extrusion wird die Hülle rasch abgekühlt, was eine Schrumpfung ( Zusammenziehung ) der Hülle in Längsrichtung hervorruft, in welcher sich dann der Leiter 1 frei beweglich und ungedehnt befindeteTo achieve this result, the sheath 2 is extruded onto the stretched conductor 1 and afterwards Extrusion, the sheath is rapidly cooled, which causes a shrinkage (contraction) of the sheath in the longitudinal direction, in which the conductor 1 freely movable and unstretched
Die Erfindung ist nicht auf das dargestellte und im Einzelnen beschriebene Ausführungsbeispiel beschränkt, sondern kann in vielfältiger Weise im Rahmen des ge— offenbarten Erfindungsgedankens verwirklicht werden«The invention is not restricted to the exemplary embodiment shown and described in detail, but can be implemented in a variety of ways within the scope of the disclosed inventive concept «
B09833/0733B09833 / 0733
Claims (1)
Stuttgart N. Menzelstraße40inS, l7ci; -ir ^ 3s! £ i3Ch
Stuttgart N. Menzelstrasse 40
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7404872A FR2260806B1 (en) | 1974-02-13 | 1974-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2505621A1 true DE2505621A1 (en) | 1975-08-14 |
Family
ID=9134860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752505621 Withdrawn DE2505621A1 (en) | 1974-02-13 | 1975-02-11 | COVERING FOR AN OPTICAL CONDUCTOR |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2505621A1 (en) |
FR (1) | FR2260806B1 (en) |
GB (1) | GB1476903A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2282648A1 (en) * | 1974-08-22 | 1976-03-19 | Int Standard Electric Corp | OPTICAL FIBER CABLE |
FR2305748A1 (en) * | 1975-03-25 | 1976-10-22 | Siemens Ag | CONDUCTOR FOR OPTICAL CABLES |
DE2551210A1 (en) * | 1975-11-12 | 1977-05-26 | Siemens Ag | Optical cable with multilayer plastic sheath - with optical fibres surrounded by casing with two layers of different plastics |
DE2722147A1 (en) * | 1976-05-21 | 1977-12-08 | Cables De Lyon Geoffroy Delore | FIBER OPTIC CABLES AND THE METHOD OF MANUFACTURING IT |
DE2701650A1 (en) * | 1976-11-09 | 1978-05-24 | Nordiske Kabel Traad | OPTICALLY CONDUCTIVE ELEMENT FOR INSTALLATION IN OPTICAL CONDUCTORS |
DE2757786A1 (en) * | 1977-12-23 | 1979-06-28 | Siemens Ag | PROCESS FOR THE CONTINUOUS PRODUCTION OF AN OPTICAL TRANSMISSION ELEMENT |
US4172106A (en) * | 1976-06-24 | 1979-10-23 | Telephone Cables Limited | Optical fibre cables and their manufacture |
DE2842604A1 (en) * | 1978-09-29 | 1980-04-03 | Siemens Ag | Hollow cable for optical fibre - has sheathing of material so measured that if water ingress freezes extension remains below breaking point |
US4302073A (en) * | 1975-09-19 | 1981-11-24 | Les Cables De Lyon S.A. | Optical fibre with a protective covering |
FR2520519A1 (en) * | 1982-01-26 | 1983-07-29 | Cables Electro Telecommunicati | Protective cable carrying optical fibre - consists of sleeve with flat diametral reinforcing strip of similar expandability as optical fibre and resistant to stress |
DE3239024A1 (en) * | 1982-10-21 | 1984-04-26 | Siemens AG, 1000 Berlin und 8000 München | Device for covering a rope-shaped unit built up from optical fibres |
US4781432A (en) * | 1979-06-01 | 1988-11-01 | Fiberglas Canada Ltd. | Optical fibre transmission cable reinforcement |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1461540A (en) * | 1975-01-21 | 1977-01-13 | Standard Telephones Cables Ltd | Optical fibre cables |
FR2331800A1 (en) * | 1975-11-14 | 1977-06-10 | Fort Francois | OPTICAL CONDUCTOR CABLE |
DE3127901A1 (en) * | 1981-07-15 | 1983-02-03 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Optical telecommunication cable having an optical fibre and a tension-proof secondary coating |
DE3545662A1 (en) * | 1985-12-21 | 1987-06-25 | Philips Patentverwaltung | METHOD FOR PRODUCING AN OPTICAL CABLE |
FR2745572A1 (en) * | 1996-02-29 | 1997-09-05 | Pf Medicament | New benzylamine sulphonamide derivatives |
FR2745642B1 (en) * | 1996-02-29 | 1998-08-14 | Pirelli Cables Sa | OPTICAL FIBER CABLE HAVING INCREASED CRUSHING RESISTANCE |
-
1974
- 1974-02-13 FR FR7404872A patent/FR2260806B1/fr not_active Expired
-
1975
- 1975-02-07 GB GB526475A patent/GB1476903A/en not_active Expired
- 1975-02-11 DE DE19752505621 patent/DE2505621A1/en not_active Withdrawn
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2282648A1 (en) * | 1974-08-22 | 1976-03-19 | Int Standard Electric Corp | OPTICAL FIBER CABLE |
FR2305748A1 (en) * | 1975-03-25 | 1976-10-22 | Siemens Ag | CONDUCTOR FOR OPTICAL CABLES |
US4302073A (en) * | 1975-09-19 | 1981-11-24 | Les Cables De Lyon S.A. | Optical fibre with a protective covering |
DE2551210A1 (en) * | 1975-11-12 | 1977-05-26 | Siemens Ag | Optical cable with multilayer plastic sheath - with optical fibres surrounded by casing with two layers of different plastics |
DE2722147A1 (en) * | 1976-05-21 | 1977-12-08 | Cables De Lyon Geoffroy Delore | FIBER OPTIC CABLES AND THE METHOD OF MANUFACTURING IT |
US4172106A (en) * | 1976-06-24 | 1979-10-23 | Telephone Cables Limited | Optical fibre cables and their manufacture |
DE2701650A1 (en) * | 1976-11-09 | 1978-05-24 | Nordiske Kabel Traad | OPTICALLY CONDUCTIVE ELEMENT FOR INSTALLATION IN OPTICAL CONDUCTORS |
DE2757786A1 (en) * | 1977-12-23 | 1979-06-28 | Siemens Ag | PROCESS FOR THE CONTINUOUS PRODUCTION OF AN OPTICAL TRANSMISSION ELEMENT |
DE2842604A1 (en) * | 1978-09-29 | 1980-04-03 | Siemens Ag | Hollow cable for optical fibre - has sheathing of material so measured that if water ingress freezes extension remains below breaking point |
US4781432A (en) * | 1979-06-01 | 1988-11-01 | Fiberglas Canada Ltd. | Optical fibre transmission cable reinforcement |
FR2520519A1 (en) * | 1982-01-26 | 1983-07-29 | Cables Electro Telecommunicati | Protective cable carrying optical fibre - consists of sleeve with flat diametral reinforcing strip of similar expandability as optical fibre and resistant to stress |
DE3239024A1 (en) * | 1982-10-21 | 1984-04-26 | Siemens AG, 1000 Berlin und 8000 München | Device for covering a rope-shaped unit built up from optical fibres |
Also Published As
Publication number | Publication date |
---|---|
FR2260806B1 (en) | 1976-10-08 |
FR2260806A1 (en) | 1975-09-05 |
GB1476903A (en) | 1977-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8141 | Disposal/no request for examination |