11.
    发明专利
    未知

    公开(公告)号:DE19547738B4

    公开(公告)日:2007-10-18

    申请号:DE19547738

    申请日:1995-12-20

    Abstract: The invention relates to an optical waveguide tube comprising a tubular cladding filled with a solid core having a higher refractive index than the cladding. In one form, a resin material having a Tg of up to 50 DEG C. and a modulus of elasticity of up to 109 dyne/cm2 is used as the core. In another form, a copolymer of acrylic acid, methacrylic acid or a lower alcohol ester thereof with a higher alkyl (meth)acrylate is used as the core, preferably in combination with a phosphate, aromatic carboxylate, aliphatic carboxylic acid, aliphatic carboxylate or glycol. In a third form, such an optical waveguide tube is prepared by filling a hollow tubular transparent cladding having opposite open ends with a liquid monomeric charge and causing the monomeric charge to polymerize while pressurizing the exposed surfaces of the monomeric charge inwardly from the opposite open ends along an axial direction of the cladding, thereby forming a core within the cladding.

    13.
    发明专利
    未知

    公开(公告)号:DE69529549D1

    公开(公告)日:2003-03-13

    申请号:DE69529549

    申请日:1995-07-28

    Abstract: An optical waveguide tube has a transparent core received in a cladding having a lower refractive index than the core. The entire cladding or an inner layer of the cladding fitting on the core is formed of a fluororubber which has been vulcanized by radical crosslinking. The vulcanized fluororubber has a residual halogen atom content of up to 80 ppm. A trapping agent surrounds the cladding for trapping coloring substances. The optical tube maintains satisfactory optical transmission capability over a long time while the core is not colored.

    19.
    发明专利
    未知

    公开(公告)号:DE69529549T2

    公开(公告)日:2003-12-11

    申请号:DE69529549

    申请日:1995-07-28

    Abstract: An optical waveguide tube has a transparent core received in a cladding having a lower refractive index than the core. The entire cladding or an inner layer of the cladding fitting on the core is formed of a fluororubber which has been vulcanized by radical crosslinking. The vulcanized fluororubber has a residual halogen atom content of up to 80 ppm. A trapping agent surrounds the cladding for trapping coloring substances. The optical tube maintains satisfactory optical transmission capability over a long time while the core is not colored.

    20.
    发明专利
    未知

    公开(公告)号:DE69810404T2

    公开(公告)日:2003-10-30

    申请号:DE69810404

    申请日:1998-08-21

    Abstract: A line glower usable in water, rain, snow or in a place where an explosion may possibly take place, and adapted to work with a small power to emit light from the lateral side thereof. It comprises a light transmission tube (1) including a transparent core (12) and a clad (11) having a smaller refractive index than the core (12); a water-proof light source (2) disposed at at least one axial end of the light transmission tube (1); and a drive unit (3) to turn on and off the light source; the light emitted from the light source and incident upon an end of the light transmission tube (1) being let to go out from a lateral side of the tube (1).

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