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公开(公告)号：DE59008280D1
公开(公告)日：1995-03-02
申请号：DE59008280
申请日：1990-06-09
Applicant: HOECHST AG
Inventor： COUTANDIN JOCHEN DR , GROH WERNER DR , HERBRECHTSMEIER PETER DR , THEIS JUERGEN DR
Abstract: Channels, in which polymer light waveguides can be inserted, can be milled in the surfaces of plastic sheets by means of an excimer laser. The free space between the light waveguides is filled with a transparent cast resin. … The channels, produced by means of the laser, are distinguished by high dimensional accuracy and low surface roughness. … …
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公开(公告)号：AT117230T
公开(公告)日：1995-02-15
申请号：AT90110921
申请日：1990-06-09
Applicant: HOECHST AG
Inventor： COUTANDIN JOCHEN DR , GROH WERNER DR , HERBRECHTSMEIER PETER DR , THEIS JUERGEN DR
Abstract: Channels, in which polymer light waveguides can be inserted, can be milled in the surfaces of plastic sheets by means of an excimer laser. The free space between the light waveguides is filled with a transparent cast resin. … The channels, produced by means of the laser, are distinguished by high dimensional accuracy and low surface roughness. … …
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公开(公告)号：DE4304310A1
公开(公告)日：1994-08-18
申请号：DE4304310
申请日：1993-02-12
Applicant: HOECHST AG
Inventor： BENNETT CYNTHIA DR , BREKNER MICHAEL-JOACHIM DR , COUTANDIN JOCHEN DR , HERRMANN-SCHOENHERR OTTO DR , OSAN FRANK DR
IPC: B29C55/02 , B32B27/32 , C08F6/02 , C08F32/00 , C08F232/00 , C08J5/18 , C08L45/00 , G02F1/1333 , C08L23/02 , C08K3/00 , H01G4/18 , G02F1/133 , G09F9/35
Abstract: The invention relates to films of partially crystalline cycloolefin copolymers which contain
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公开(公告)号：DE3832803A1
公开(公告)日：1990-03-29
申请号：DE3832803
申请日：1988-09-28
Applicant: HOECHST AG
Inventor： GROH WERNER DR , COUTANDIN JOCHEN DR , HERBRECHTSMEIER PETER DR , THEIS JUERGEN DR
Abstract: A novel light detecting device consists of a plate-like light- absorbing body and at least one optical waveguide connected thereto. Both parts of the light detecting device contain a fluorescent dye, whereby the irradiated light is converted into a fluorescent radiation. This radiation is passed by total reflection to a light- sensitive semiconductor element and measured there. The light detecting device is suitable as a light barrier, optical fibre rotary speed measuring device or UV detector. … …
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公开(公告)号：GR3018827T3
公开(公告)日：1996-04-30
申请号：GR960400215
申请日：1996-01-31
Applicant: HOECHST AG
Inventor： COUTANDIN JOCHEN DR , GROH WERNER DR , HERBRECHTSMEIER PETER DR , THEIS JUERGEN DR
Abstract: Mechanically robust star couplers of polymer optical waveguides having low insertion losses and small fluctuations between the individual output fibers are obtained if polymer optical waveguides are arranged in parallel in the middle region of an apparatus and fused with one another under pressure and with the supply of heat. The optical cladding of the polymer optical waveguides has been previously removed. The method is easy and cost-effective. The apparatus is composed of a lower part with a channel recessed therein and an upper part with a male die located therein, which male die corresponds in its shape to the shape of the channel.
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Patent Agency Ranking
公开(公告)号：DK0402797T3
公开(公告)日：1995-05-15
申请号：DK90110921
申请日：1990-06-09
Applicant: HOECHST AG
Inventor： HERBRECHTSMEIER PETER DR , COUTANDIN JOCHEN DR , THEIS JUERGEN DR , GROH WERNER DR
Abstract: Channels, in which polymer light waveguides can be inserted, can be milled in the surfaces of plastic sheets by means of an excimer laser. The free space between the light waveguides is filled with a transparent cast resin. … The channels, produced by means of the laser, are distinguished by high dimensional accuracy and low surface roughness. … …
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公开(公告)号：ES2066908T3
公开(公告)日：1995-03-16
申请号：ES90110921
申请日：1990-06-09
Applicant: HOECHST AG
Inventor： COUTANDIN JOCHEN DR , GROH WERNER DR , HERBRECHTSMEIER PETER DR , THEIS JURGEN DR
Abstract: Channels, in which polymer light waveguides can be inserted, can be milled in the surfaces of plastic sheets by means of an excimer laser. The free space between the light waveguides is filled with a transparent cast resin. … The channels, produced by means of the laser, are distinguished by high dimensional accuracy and low surface roughness. … …
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公开(公告)号：AT105772T
公开(公告)日：1994-06-15
申请号：AT88118179
申请日：1988-11-02
Applicant: HOECHST AG
Inventor： COUTANDIN JOCHEN DR , THEIS JUERGEN DR , GROH WERNER DR , HERBRECHTSMEIER PETER DR
Abstract: High-performance optical couplers for polymer light guides are obtained if light guides are grouped together by means of a piece of plastic shrink-fit tubing and fused. The shrink-fit tubing is thereby heated above the shrinking temperature. The method is simple and inexpensive.
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公开(公告)号：AT97232T
公开(公告)日：1993-11-15
申请号：AT89117705
申请日：1989-09-26
Applicant: HOECHST AG
Inventor： GROH WERNER DR , COUTANDIN JOCHEN DR , HERBRECHTSMEIER PETER DR , THEIS JUERGEN DR
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公开(公告)号：DE4013307A1
公开(公告)日：1991-10-31
申请号：DE4013307
申请日：1990-04-26
Applicant: HOECHST AG
Inventor： COUTANDIN JOCHEN DR , THEIS JUERGEN DR , GROH WERNER DR , BROCKMEYER ANDREAS DR
Abstract: Method for the production of an optical coupler for polymer light-guides by arranging the light-guides in the same direction and bundling them by means of a plastic shrink-fit sleeve. In this method, two to 10 polymer light-guides are arranged in the same direction and bundled and a plastic tube is slipped over the mixing zone. Subsequently, a piece of plastic shrink-fit sleeve is pushed over the plastic tube and the shrink-fit sleeve is heated to a temperature at which it contracts. The shrinking temperature of the shrink-fit sleeve is within the thermoelastic temperature range of the plastic tube. The light-guide bundles may be stretched during or after heating.
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