DE10003934A1 - Light guide, comprises at least one optical fiber made of cycloolefin copolymer with impeded crystallization - Google Patents

Light guide, comprises at least one optical fiber made of cycloolefin copolymer with impeded crystallization

Info

Publication number
DE10003934A1
DE10003934A1 DE2000103934 DE10003934A DE10003934A1 DE 10003934 A1 DE10003934 A1 DE 10003934A1 DE 2000103934 DE2000103934 DE 2000103934 DE 10003934 A DE10003934 A DE 10003934A DE 10003934 A1 DE10003934 A1 DE 10003934A1
Authority
DE
Germany
Prior art keywords
optical fiber
light guide
cycloolefin copolymer
fiber made
crystallization
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.)
Ceased
Application number
DE2000103934
Other languages
German (de)
Inventor
Peter Merget
Heinz-Juergen Schwarz
Helmut Weikert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE2000103934 priority Critical patent/DE10003934A1/en
Publication of DE10003934A1 publication Critical patent/DE10003934A1/en
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/045—Light guides
    • G02B1/046—Light guides characterised by the core material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

The light guide comprises at least one optical fiber which is made of a cycloolefin copolymer whose crystallization process has been impeded.

Description

Die Erfindung betrifft einen Lichtwellenleiter mit einem Kern aus einem Polymer gemäß dem Oberbegriff des Anspruchs 1, wie er bspw. aus gattungsbildend zugrundegelegten EP 5959 246 A1 als bekannt hervorgeht.The invention relates to an optical waveguide with a core from a polymer according to the preamble of claim 1 as he for example from EP 5959 246 A1 as the generic basis is known.

Aus der EP 5959 246 A1 ist ein Lichtwellenleiter bekannt, der innerhalb einer Ummantelung einen Satz von optischen Fasern aufweist, die aus ein Polymer hergestellt sind. Derartige Lichtwellenleiter sind u. a. preiswert. Allerdings können sie nur für bestimmte Zwecke eingesetzt werden, da bspw. ihre Dämpfungsrate zu hoch oder ihre Temperaturstabilität zu gering ist. Insbesondere ist ihre Anwendung im Automobilbau und hier vorzugsweise motorraumnah zumindest eingeschränkt, da hier zum Teil hohe Temperaturen auftreten.An optical waveguide is known from EP 5959 246 A1, which a set of optical fibers within a cladding has, which are made of a polymer. Such Optical fibers are u. a. inexpensive. However, they can can only be used for certain purposes, e.g. their Damping rate too high or their temperature stability too low is. In particular, their application is in automotive engineering and here preferably close to the engine compartment, at least to a limited extent, because here Partly high temperatures occur.

Die Aufgabe der Erfindung ist es, dem zugrundegelegten Wellenleiter dahingehend weiterzuentwickeln, daß dessen Verwendungsmöglichkeiten im Hinblick auf eine äußere thermische Belastung verbessert sind.The object of the invention is the one on which it is based To develop waveguides in such a way that Possible uses with regard to an external thermal Strain are improved.

Die Aufgabe wird mit einem Lichtwellenleiter mit den Merkmalen des Anspruchs 1 gelöst.The task is done with an optical fiber with the features of claim 1 solved.

Cyclo-Olefin-Copolymere (COC), die in ihrer Kristallisation behindert sind bzw. wurden, weisen ein gegenüber bisher als Kernmaterial für Lichtwellenleiter verwendeten Polymeren ein besseres Temperaturverhalten auf. Dadurch ist deren Verwendung bspw. im Motorraum verbessert, da sie bspw. auch motornah verlegt werden können. Cyclo-olefin copolymers (COC) in their crystallization are or have been hindered so far Core material for optical fibers used polymers better temperature behavior. This is their use Improved in the engine compartment, for example, since it is also close to the engine can be relocated.  

So weist das genannte Fasermaterial im Lichtwellenlängenbereich zwischen 300 nm und 900 nm sowie bei einer Temperatur von T = 23°C und einer Dicke von 2 mm eine Transmission von mindestens 70%, bevorzugt 80% und besonders bevorzugt von mindestens 90% auf.So the fiber material mentioned in the light wavelength range between 300 nm and 900 nm and at a temperature of T = 23 ° C and a thickness of 2 mm a transmission of at least 70%, preferably 80% and particularly preferably at least 90% on.

Die entsprechenden Werte sind bis zu einer Temperatur von ca. 120°C weitgehend stabil. Die geschätzte maximale Einsatztemperatur beträgt ca. 120°C. Exakte Alterungsuntersuchungen liegen für dieses Material derzeit noch nicht vor.The corresponding values are up to a temperature of approx. 120 ° C largely stable. The estimated maximum Operating temperature is approx. 120 ° C. Exact Aging tests for this material are currently still pending not before.

Claims (2)

1. Lichtwellenleiter mit mindestens einer lichtleitenden Faser, dadurch gekennzeichnet, daß die lichtleitende Faser aus einem Cyclo-Olefin-Copolymer gefertigt ist, welches in seiner Kristallisation behindert ist.1. Optical waveguide with at least one light-guiding fiber, characterized in that the light-guiding fiber is made from a cyclo-olefin copolymer which is hindered in its crystallization. 2. Lichtwellenleiter mit mindestens einer Faser, dadurch gekennzeichnet, daß das Fasermaterial im Lichtwellenlängenbereich zwischen 300 nm und 900 nm sowie bei einer Temperatur von T = 23°C und einer Dicke von 2 mm eine Transmission von mindestens 70%, bevorzugt 80% und besonders bevorzugt von mindestens 90% aufweist.2. optical waveguide with at least one fiber, characterized, that the fiber material in the light wavelength range between 300 nm and 900 nm and at a temperature of T = 23 ° C and a thickness of 2 mm a transmission of at least 70%, preferably 80% and particularly preferably at least 90% having.
DE2000103934 2000-01-29 2000-01-29 Light guide, comprises at least one optical fiber made of cycloolefin copolymer with impeded crystallization Ceased DE10003934A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000103934 DE10003934A1 (en) 2000-01-29 2000-01-29 Light guide, comprises at least one optical fiber made of cycloolefin copolymer with impeded crystallization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000103934 DE10003934A1 (en) 2000-01-29 2000-01-29 Light guide, comprises at least one optical fiber made of cycloolefin copolymer with impeded crystallization

Publications (1)

Publication Number Publication Date
DE10003934A1 true DE10003934A1 (en) 2001-08-09

Family

ID=7629192

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000103934 Ceased DE10003934A1 (en) 2000-01-29 2000-01-29 Light guide, comprises at least one optical fiber made of cycloolefin copolymer with impeded crystallization

Country Status (1)

Country Link
DE (1) DE10003934A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304291A1 (en) * 1993-02-12 1994-08-18 Hoechst Ag Cycloolefin copolymers with low melt viscosity and low optical attenuation
DE19522106A1 (en) * 1995-06-19 1997-01-02 Hoechst Ag Process for the preparation of cycloolefin copolymers
DE19546500A1 (en) * 1995-12-13 1997-06-19 Hoechst Ag Production of cyclo-olefin copolymers e.g. for pipes
DE19652338A1 (en) * 1996-12-17 1998-06-18 Hoechst Ag Process for the preparation of a cycloolefin copolymer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304291A1 (en) * 1993-02-12 1994-08-18 Hoechst Ag Cycloolefin copolymers with low melt viscosity and low optical attenuation
DE19522106A1 (en) * 1995-06-19 1997-01-02 Hoechst Ag Process for the preparation of cycloolefin copolymers
DE19546500A1 (en) * 1995-12-13 1997-06-19 Hoechst Ag Production of cyclo-olefin copolymers e.g. for pipes
DE19652338A1 (en) * 1996-12-17 1998-06-18 Hoechst Ag Process for the preparation of a cycloolefin copolymer

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