Low-pressure discharge lamp and back light device using same

Electric lamp and discharge devices – With gas or vapor – Having particular electrode structure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C313S633000, C313S641000, C313S491000

Reexamination Certificate

active

07358675

ABSTRACT:
A low-pressure discharge lamp (1) is provided that includes a glass tube (2) having an inner diameter in a range of 1 to 5 mm and a pair of electrodes (3) disposed at end portions in the glass tube (2). The pair of electrodes (3) contain at least one transition metal selected from transition metals of Groups IV to VI. Mercury and a rare gas containing argon and neon are sealed in an inner portion of the glass tube (2). A relationship between a cathode glow discharge density J and a composition index α of the sealed rare gas of the low-pressure discharge lamp (1) satisfies the following expressionin-line-formulae description="In-line Formulae" end="lead"?α≦J=I/(S·P2)≦1.5αin-line-formulae description="In-line Formulae" end="tail"?(where S represents an effective discharge surface area (mm2) of an electrode, I represents a RMS lamp current (mA), P represents a pressure (kPa) of a sealed rare gas, and α represents a composition index of a sealed rare gas that is a constant expressed by α=(90.5A+3.4N)×10−3when a total of a composition ratio A of argon and a composition ratio N of neon is expressed by A+N=1).

REFERENCES:
patent: 5962977 (1999-10-01), Matsumoto et al.
patent: 6057635 (2000-05-01), Nishimura et al.
patent: 6166491 (2000-12-01), Tsuchiya et al.
patent: 6388394 (2002-05-01), Mita et al.
patent: 6800997 (2004-10-01), Yamashita et al.
patent: 6943499 (2005-09-01), Yamashita et al.
patent: 4-137429 (1992-05-01), None
patent: 6-5228 (1994-02-01), None
patent: 275237 (1994-09-01), None
patent: 8-190890 (1996-07-01), None
patent: 10-21873 (1998-01-01), None
patent: 10-199476 (1998-07-01), None
patent: 10199476 (1998-07-01), None
patent: 11185699 (1999-07-01), None
patent: 11-185699 (1999-09-01), None
patent: 2001-76617 (2001-03-01), None
patent: 2001-325915 (2001-11-01), None
patent: 2002-184356 (2002-06-01), None
patent: 2002-289137 (2002-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Low-pressure discharge lamp and back light device using same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-pressure discharge lamp and back light device using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-pressure discharge lamp and back light device using same will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2791590

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.