Optical waveguides – Illuminating or display apparatus
Patent
1998-04-07
1999-11-30
Palmer, Phan T. H.
Optical waveguides
Illuminating or display apparatus
385115, 385120, 385124, 362554, 362556, 362560, G02B 604
Patent
active
059957026
ABSTRACT:
In order to enhance the light output from a side illuminating optical structure comprising a plurality of elongate optical fibers, means is provided for ensuring a permanent compressive stress in the optical structure, for example a permanent compressive stress in the radial direction and/or in the axial direction. A variety of means are disclosed, for example a transparent tape member wound with tension helically around the optical structure, an elongate heat-shrinkable sleeve surrounding the structure, a plurality of rings provided along the structure to keep it under permanent compressive stress. Embodiments using braids are also disclosed.
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patent: 5568964 (1996-10-01), Parker et al.
patent: 5617496 (1997-04-01), Kingstone
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Translation of German Search Report dated Oct. 14,1997 relating to European Patent Application No. 97105792.2.
German Search Report dated Oct. 14, 1997 relating to European Application No. 97105792.2.
Palmer Phan T. H.
Roblon A/S
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