Electric lamp and discharge devices – With gas or vapor – Having electrode exterior to envelope
Reexamination Certificate
2006-06-07
2010-12-14
Macchiarolo, Peter (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Having electrode exterior to envelope
C313S634000, C313S609000
Reexamination Certificate
active
07852005
ABSTRACT:
The invention relates to a fluorescent lamp with an external electrode used as a backlight of a liquid crystal display device or others. To reduce invalid parts of the backlight, the length in an axial direction of an external electrode of the fluorescent lamp is required to be reduced. Therefore, a concave portion is provided to the end of the fluorescent lamp with an external electrode, and by forming the external electrode in the concave portion, the total area of the external electrodes is secured. Even if the length in the axial direction of the external electrode is short, discharge is stabilized. Graphite is used for the external electrode; however, graphite in which a water glass component is increased to enhance its mechanical strength is used.
REFERENCES:
patent: 6515433 (2003-02-01), Ge et al.
patent: 7061465 (2006-06-01), Yajima et al.
patent: 7211939 (2007-05-01), Lim
patent: 7538478 (2009-05-01), Terada et al.
patent: 2002/0041268 (2002-04-01), Yajima et al.
patent: 2006/0002115 (2006-01-01), Jeong
patent: 2009/0115342 (2009-05-01), Lam et al.
patent: 2002-072205 (2002-03-01), None
patent: 2004-079268 (2004-03-01), None
Misono Masayoshi
Takeda Yoshiharu
Torai Reiji
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Display Devices, Ltd.
Hitachi Displays Ltd.
Macchiarolo Peter
LandOfFree
Fluorescent lamp with external electrode, backlight, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluorescent lamp with external electrode, backlight, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent lamp with external electrode, backlight, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4166731