Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-01-16
2007-01-16
Doan, Jennifer (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S015000, C385S039000
Reexamination Certificate
active
10539690
ABSTRACT:
In the field of flexible displays there is a need for an electro-optic filament that is capable of being woven, knitted or crocheted. An electro-optic filament or fibre (10) includes an elongate core (11) extending lengthwise within a volume (12) of polarisable material; and an outer electrode member (13) overlying the volume (12). The core (11) and outer member (13) are electrically conducting and connectable to electrical potentials to generate a radial field in the polarisable material. The outer member (13) is optically transmissive and/or transflective. The polarisable material (12) exhibits an optical effect such as a colour change, change in polarisation or change in reflectivity, when subjected to a said field or a change in a said field. The filament or fibre may readily be woven into eg. a fabric or a garment, using conventional textile processing machinery.
REFERENCES:
patent: 5906004 (1999-05-01), Lebby et al.
patent: 6096666 (2000-08-01), Jachimowicz et al.
patent: 6602544 (2003-08-01), Piselli
patent: 0 933 752 (1999-08-01), None
patent: 1 213 594 (2002-06-01), None
Bechtel Hans-Helmut
Chaman Jeffrey A.
Eves David A.
Martynov Yourii
Wagner Philippa C.
Doan Jennifer
Koninklijke Philips Electronics , N.V.
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