Title:
REFRACTIVE INDEX GRATING MANUFACTURING PROCESS
Document Type and Number:
WIPO Patent Application WO2002073258
Kind Code:
A3
Abstract:
A filament coating apparatus comprising a frame for releasably securing a filament (20), and a carriage (354) mounted on the frame to oscillate between a first position and a second position. There is a first filament holding fixture mounted on the carriage and a second filament holding fixture also mounted on the carriage in axial alignment with the first filament holding fixture to secure a measured filament portion, preferably of an optical fiber, including a bare portion thereof, located inside a first boundary and a second boundary, between the first filament holding fixture and the second filament holding fixture. At least one spray head (322, 326) is attached to the frame at the first position with at least one radiation source (324, 328) attached to the frame at the second position. The measured filament portion moves between the spray head and the radiation source (324, 328), during oscillation of the carriage between the first position and the second position to place the bare portion to receive a curable coating composition from the spray head, for application from the first boundary to the second boundary, and thereafter to cure the curable coating by exposure to radiation from the radiation source.
Inventors:
GATICA ANTHONY W
DOWER WILLIAM V
LEBLANC STEPHEN P
PEPIN RONALD P
GATES BRIAN J
CRONK BRYON J
COWHER JOHN T
LABRAKE DWAYNE L
NELSON BRIAN K
WALKER CHRISTOPHER B
DOWER WILLIAM V
LEBLANC STEPHEN P
PEPIN RONALD P
GATES BRIAN J
CRONK BRYON J
COWHER JOHN T
LABRAKE DWAYNE L
NELSON BRIAN K
WALKER CHRISTOPHER B
Application Number:
PCT/US2001/020280
Publication Date:
May 01, 2003
Filing Date:
June 26, 2001
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
B29C48/08; B29C48/15; C03C25/10; C03C25/12; G02B6/02; G02B6/245; G02B6/36; G03F7/00; G03F7/24; (IPC1-7): G02B6/16; G02B6/245; G02B6/44; C03C25/12; B29C47/02; C03C25/10
Domestic Patent References:
| WO1998018031A1 | 1998-04-30 |
Foreign References:
| EP1035425A1 | 2000-09-13 | |||
| US5037172A | 1991-08-06 | |||
| DE3637159A1 | 1988-05-05 | |||
| US5219120A | 1993-06-15 | |||
| US6064789A | 2000-05-16 | |||
| US4410561A | 1983-10-18 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 009, no. 278 (C - 312) 6 November 1985 (1985-11-06)
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