EP 1005660 A1 20000607 - OPTICAL FIBER LIGHT DISTRIBUTION SYSTEM AND METHOD OF MANUFACTURE AND ILLUMINATION
Title (en)
OPTICAL FIBER LIGHT DISTRIBUTION SYSTEM AND METHOD OF MANUFACTURE AND ILLUMINATION
Title (de)
FASEROPTISCHES LICHTVERTEILUNGSSYSTEM UND HERSTELLUNGSVERFAHREN UND BELICHTUNG
Title (fr)
SYSTEME DE DISTRIBUTION DE LUMIERE A FIBRES OPTIQUES ET PROCEDE DE FABRICATION ET D'ILLUMINATION
Publication
Application
Priority
- US 9901962 W 19990129
- US 7302898 P 19980129
Abstract (en)
[origin: WO9939225A1] An optical fiber light distribution system (10) has a first optical fiber and a second optical fiber. The first optical fiber has a side surface, an axis, and a length. The second optical fiber is wrapped about the side surface such that the second optical fiber defines a plurality of wraps (18) about the first optical fiber. The plurality of wraps (18) have a pitch (20a). Pitch (20a) is the distance between corresponding points of adjacent wraps (18) measured parallel to the first optical fiber axis. When light (24) is directed through the first optical fiber, portions of the light are extracted by portions of the second optical fiber that contact the first optical fiber. The lower the pitch of the plurality of wraps (18), the greater the percentage of light extracted into the second optical fiber from the first optical fiber. Further, softer first optical fibers which incur more deformation have increased contact surface with the second optical fiber. The increased contact surface results in an increased percentage of light being extracted into the second optical fiber. Cladding or potting may be used to inhibit light extraction. A process for making the optical fiber distribution system has the step of wrapping the second optical fiber about the first optical fiber. A process for illumination has the step of directing light through the optical fiber light distribution system.
IPC 1-7
IPC 8 full level
F21V 8/00 (2006.01); G02B 6/28 (2006.01); G02B 6/00 (2006.01)
CPC (source: EP)
G02B 6/001 (2013.01); G02B 6/2852 (2013.01); G02B 6/0001 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9939225 A1 19990805; EP 1005660 A1 20000607; EP 1005660 A4 20000927
DOCDB simple family (application)
US 9901962 W 19990129; EP 99904441 A 19990129