Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1983-10-05
1986-01-21
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156158, 350 9619, 350 9621, 356 731, 362 32, B65H 6906
Patent
active
045655936
ABSTRACT:
Inspection of a fusion splice between the ends of two optical fibres, said splice being reinforced by a support member, is facilitated. In particular, inspection of the joint between the optical fibre cores in a fusion splice is facilitated. The splice is held in a transparent support member by means of a transparent adhesive matched in refractive index to the cladding of the fibre. Apparatus is described which allows the splice to be viewed in two directions at right angles by means of a microscope whose position may be adjusted therefor without rotation relative to the support member. The arrangement is of particular relevance to splices between monomode fibres whose small core diameters call for a high degree of precision in jointing in order to avoid optical loss.
REFERENCES:
patent: 4102717 (1978-07-01), Hensel
patent: 4432601 (1984-02-01), Mannschke
Patent Abstracts of Japan, vol. 6, No. 112, Jun. 23, 1982, pp. 46P124, & JP-A-57 41 606 (Nippon Denshin Denwa Kosha) figures 1, 2.
Patent Abstracts of Japan, vol. 6, No. 112, Jun. 23, 1982, pp. 97P124, & JP-A-57 42 013 (Dainichi Nippon Densen K.K.).
Patent Abstracts of Japan, vol. 5, No. 56, Apr. 17, 1981, pp. 138P57, & JP-A-56 11 423 (Nippon Denshin Denwa Kosha).
Research Disclosure, No. 216, Apr. 1982, Havant, Hamps (GB) "Automatic Positioning and Alignment Equipment for Optical Fibres", p. 131, lines 45-47; figure 7.
British Telecommunications
Dawson Robert A.
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