Title:
TUBE AND BALL
Document Type and Number:
WIPO Patent Application WO/2005/032215
Kind Code:
A1
Abstract:
A tube and ball, comprising a heating tube (2) having a heating part storing a filament (3), a pair of sealing end parts (5b) pinch-sealed at the axial both sides of the heating part for sealing the heating part airtight, and a pair of leads connected to the filament and extending airtight from the pair of sealing end parts (5b) to the outside, an optical film (10) formed by applying an optical film solution on the outer surfaces of the heating tube excluding a non-coated area (9) not coated with the optical film solution, that is, an area between a position S apart a specified distance l from one side inner end (ie) of the pair of sealing end parts to the filament side and the outer end (Oe) of the sealing end part, and a frost part (11) frost-processed in the non-coated area. Thus, the glare-proofing effect of the heating tube can be increased.
Inventors:
GOGAMI YASUTAKA (JP)
SHIGEEDA HIDENORI (JP)
OOTANI TETSUO (JP)
SHIGEEDA HIDENORI (JP)
OOTANI TETSUO (JP)
Application Number:
PCT/JP2004/014697
Publication Date:
April 07, 2005
Filing Date:
September 29, 2004
Export Citation:
Assignee:
HARISON TOSHIBA LIGHTING CORP (JP)
GOGAMI YASUTAKA (JP)
SHIGEEDA HIDENORI (JP)
OOTANI TETSUO (JP)
GOGAMI YASUTAKA (JP)
SHIGEEDA HIDENORI (JP)
OOTANI TETSUO (JP)
International Classes:
H01K1/32; H01K7/00; H05B3/44; (IPC1-7): H05B3/44; H01K1/32; H01K7/00
Foreign References:
| JPH0680253U | 1994-11-08 | |||
| JPS63155252U | 1988-10-12 | |||
| JPH1186804A | 1999-03-30 | |||
| JPH01319244A | 1989-12-25 | |||
| JPS59221968A | 1984-12-13 | |||
| US4965485A | 1990-10-23 | |||
| US6404112B1 | 2002-06-11 | |||
| US4710677A | 1987-12-01 | |||
| JPH1186804A | 1999-03-30 |
Other References:
See also references of EP 1670288A4
Attorney, Agent or Firm:
Hatano, Hisashi (2nd Floor Miyata Building, 17-16,
Nishi-Shimbashi 1-chom, Minato-ku Ehime, JP)
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