Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Reexamination Certificate
2006-10-10
2006-10-10
Vo, Tuyet Thi (Department: 2821)
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
C313S488000
Reexamination Certificate
active
07119486
ABSTRACT:
An electrodeless fluorescent lamp (10) having a burner (20), a ballast housing (30) containing a ballast (40) and a screw base (50) for connection to a power supply. A reentrant cavity (60) is formed in the burner (20) and an amalgam receptacle (70) containing amalgam (75) is formed as a part of the reentrant portion and in communication with the burner (20). A housing cap (80), formed of a suitable plastic, connects the burner (20) to the ballast housing (30) and a suitable adhesive (31) fixes the burner to the housing cap (80). An EMI cup (90) is formed as an insert to fit into the ballast housing (30), which also is formed of a suitable plastic, and has a bottom portion (100) and an EMI cap (110) with an aperture (120) therein closing an upper portion (140). The EMI cup (90) and the EMI cap (110) are preferably formed from 0.5 mm brass. The amalgam receptacle (70) extends through the aperture (120) and into the cup (90). For a fixed amalgam position, changing the aperture size allows adjustment of the amalgam tip temperature, and thus, allows control of the system lumen output, efficacy, CCT and CRI, all of which are dependent on the amalgam temperature.
REFERENCES:
patent: 4117378 (1978-09-01), Glascock, Jr.
patent: 4119889 (1978-10-01), Hollister
patent: 4536675 (1985-08-01), Postma
patent: 4675577 (1987-06-01), Hanlet
patent: 4704562 (1987-11-01), Postma et al.
patent: 4927217 (1990-05-01), Kroes et al.
patent: 5130912 (1992-07-01), Friederichs et al.
patent: 5343126 (1994-08-01), Farrall et al.
patent: 5412280 (1995-05-01), Scott et al.
patent: 5500567 (1996-03-01), Wilson et al.
patent: 5723941 (1998-03-01), Roelevink
patent: 5751110 (1998-05-01), Spaapen et al.
patent: 5912536 (1999-06-01), Michiels et al.
patent: 6084359 (2000-07-01), Hetzel et al.
patent: 6097137 (2000-08-01), Forsdyke et al.
patent: 6768254 (2004-07-01), Arakawa et al.
Alexandrovich Benjamin M.
Godyak Valery A.
Hutcherson Kenneth R.
Sapozhnikov Alexander A.
Bessone Carlo S.
Osram Sylvania Inc.
Vo Tuyet Thi
LandOfFree
Re-entrant cavity fluorescent lamp system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Re-entrant cavity fluorescent lamp system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Re-entrant cavity fluorescent lamp system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3674710